REVIEW 3 major objections 3 minor 92 references
Reviewed by Pith at T0; open to challenge.
T0 review · glm-5.2
XRISM finds Abell 2199's core gas moves in lockstep with its central galaxy
2026-07-09 00:27 UTC pith:DAKFZMCH
load-bearing objection Early XRISM kinematic measurement of a relaxed cool-core cluster; the headline number is an upper limit more than a precise measurement, but the qualitative conclusion holds. the 3 major comments →
XRISM Reveals a Kinematically Coherent Core System of the Nearby Cool-Core Cluster Abell 2199
The pith
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
The intracluster medium in the central ~100 kpc of Abell 2199 is kinematically coherent with the brightest cluster galaxy — sharing a common line-of-sight velocity that is offset by ~200 km/s from the cluster mean — and is among the most dynamically quiescent cool cores observed by XRISM, with a non-thermal pressure fraction of only 1.4 ± 0.2% despite the presence of radio jets and possible sloshing.
What carries the argument
The XRISM/Resolve microcalorimeter, which delivers high-resolution X-ray spectroscopy capable of measuring ICM line-of-sight velocities and velocity dispersions from the Doppler broadening and shifting of emission lines (particularly Fe XXV He-alpha). The key derived quantities are the 3D Mach number (M_3D = 0.16) and the non-thermal pressure fraction (P_NT/P_tot = 1.4 ± 0.2%), which together quantify how dynamically disturbed the gas is.
Load-bearing premise
The estimate that turbulent dissipation offsets roughly 20% of radiative cooling losses relies on scaling relations for turbulent heating rather than a direct measurement of the turbulent cascade or the dissipation scale at which turbulent energy converts to heat.
What would settle it
If future higher-spatial-resolution measurements of the ICM velocity field reveal that the turbulent cascade dissipates energy at a rate significantly different from the scaling-relation estimate — or that the true 3D velocity dispersion is substantially higher than the line-of-sight value implies — then the Q_turb/Q_cool ~ 0.2 estimate could be off by a large factor, changing the conclusion about turbulent heating's role.
If this is right
- If turbulent dissipation offsets ~20% of cooling losses in such a quiescent system, even modest sloshing-driven turbulence may be a significant heating channel in cool-core clusters, complementing AGN feedback.
- The co-motion of the ICM and BCG at ~200 km/s offset from the cluster mean suggests the BCG and its surrounding gas share a common dynamical history, possibly reflecting residual bulk motion from a past merger or sloshing event.
- The localized Fe XXV He-alpha y-line enhancement at the southeast Chandra brightness edge suggests a region of compressed or shock-heated gas; spatially resolved spectroscopy there could test whether this is a cold front, shock, or residual AGN outflow feature.
- Abell 2199 provides a low-turbulence baseline for calibrating how non-thermal pressure affects hydrostatic mass estimates in galaxy clusters; at 1.4% the bias is small here, but the method extends to more disturbed systems where it may be substantial.
Where Pith is reading between the lines
- If the ~200 km/s bulk offset of the BCG+ICM system from the cluster mean is a signature of sloshing, the sloshing timescale and amplitude could be used to constrain the cluster's merger history and the age of the cool core.
- The fact that the ICM remains so quiescent despite active radio jets suggests that jet energy may be deposited at small scales or largely escapes the central region as buoyant bubbles, with minimal conversion to turbulent kinetic energy in the observed aperture — a testable prediction for high-resolution simulations of jet-ICM coupling.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. This paper presents a 251 ks XRISM/Resolve observation of the cool core of Abell 2199. From the integrated spectrum over the central 3'×3' field of view (104×104 kpc²), the authors measure an ICM velocity dispersion of ~100 km/s, yielding a non-thermal pressure fraction P_NT/P_tot = 1.4±0.2% and a 3D Mach number of 0.16. They find the ICM redshift consistent with the BCG, identifying a kinematically coherent core system offset from the mean cluster redshift by ~200 km/s. They also report a localized Fe XXV Heα y-line enhancement in the southeast, coinciding with a Chandra surface brightness discontinuity. Order-of-magnitude estimates suggest Q_turb/Q_cool ≈ 0.2 for large-scale sloshing drivers. The paper characterizes Abell 2199 as one of the most quiescent clusters observed with XRISM. This review is based on the abstract and supplementary materials only; the full text was not available for assessment.
Significance. XRISM is a new facility and measurements of ICM kinematics in cool-core clusters are among its key early science goals. The low P_NT/P_tot = 1.4±0.2% and the kinematic coherence between the ICM and BCG are notable results that contribute to the emerging picture of cluster core dynamics. The Fe XXV Heα y-line enhancement coincident with a Chandra discontinuity is an interesting spatially resolved result. The heating/cooling balance estimate (Q_turb/Q_cool ≈ 0.2) is presented appropriately as an order-of-magnitude calculation using standard scaling relations rather than a direct cascade measurement. The central kinematic measurement is an independent observation and does not rely on circular reasoning.
major comments (3)
- The headline result P_NT/P_tot = 1.4±0.2% derives from a velocity dispersion σ≈100 km/s measured from the integrated spectrum over the full 104×104 kpc² FOV. The paper notes a 'plume-like structure possibly associated with sloshing motions.' Sloshing produces spatially varying bulk line-of-sight velocity shifts across tens of kpc; when integrated into a single spectrum, these coherent bulk flows are degenerate with turbulent broadening. The measured σ is therefore an upper limit on the true turbulent velocity dispersion, and the quoted ±0.2% uncertainty likely reflects only statistical errors. The authors should explicitly discuss this systematic: how spatially varying bulk velocities from sloshing could inflate σ, whether the direction of the bias is consistent with their 'quiescent' conclusion (it would be, since true turbulence could be even lower), and whether the tight error bar on
- Cool-core clusters exhibit multi-temperature structure along the line of sight. Superposition of plasma components at different temperatures can broaden the Fe XXV Heα line independently of turbulent motions, further inflating σ. The authors should address whether multi-temperature structure was accounted for in the velocity dispersion measurement and quantify its potential contribution to the quoted P_NT/P_tot. Without this, the partition of the measured broadening into turbulence versus thermal multi-structure is unconstrained, and the systematic uncertainty on P_NT/P_tot could exceed the quoted ±0.2%.
- The Q_turb/Q_cool ≈ 0.2 estimate is described as an order-of-magnitude and relies on scaling relations for turbulent dissipation rather than a direct measurement of the dissipation scale or cascade. This is acceptable as a rough estimate, but the authors should clarify which specific scaling relations are used, what their associated uncertainties are, and whether the result is sensitive to the assumed driving scale. The claim that turbulent dissipation offsets a 'non-negligible fraction' of cooling losses should be qualified with the range of plausible values, not just the central estimate, to avoid over-interpreting the precision of this calculation.
minor comments (3)
- The abstract states the ICM redshift is consistent with the BCG 'within the optical-redshift uncertainty.' It would help to state the actual uncertainty on the BCG optical redshift and the ICM X-ray redshift measurement explicitly, so the reader can assess the precision of the kinematic coherence claim.
- The Fe XXV Heα y-line enhancement in the southeast region is mentioned briefly. If the full paper provides more detail on its physical interpretation (e.g., non-equilibrium ionization, temperature structure, or shock-related origin), the abstract could benefit from a slightly more informative summary. If not, a brief note on its interpretation would strengthen the discussion.
- The abstract does not specify the redshift or distance assumed for Abell 2199, which sets the physical scale of 104×104 kpc² for the 3'×3' FOV. This should be stated explicitly.
Simulated Author's Rebuttal
We thank the referee for a careful and constructive review. The referee raises three major points concerning: (1) the potential inflation of the measured velocity dispersion by spatially varying bulk flows from sloshing, (2) the possible contribution of multi-temperature structure to line broadening, and (3) the need for clarification of the scaling relations and uncertainties in the Q_turb/Q_cool estimate. All three points are well-taken and can be addressed through revisions to the manuscript text. We agree that the systematic uncertainties from sloshing and multi-temperature structure should be explicitly discussed, and that the heating estimate should be more fully qualified. We note that the referee's review is based on the abstract only; the full manuscript already contains partial discussion of some of these issues, which we will strengthen and make more prominent in revision.
read point-by-point responses
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Referee: Sloshing produces spatially varying bulk line-of-sight velocity shifts across tens of kpc; when integrated into a single spectrum, these coherent bulk flows are degenerate with turbulent broadening. The measured σ is therefore an upper limit on the true turbulent velocity dispersion, and the quoted ±0.2% uncertainty likely reflects only statistical errors. The authors should explicitly discuss this systematic.
Authors: We agree that this is an important systematic that must be discussed explicitly. The referee is correct that coherent bulk velocity shifts from sloshing, when integrated over the full 3'×3' FOV, are degenerate with turbulent broadening and could inflate the measured σ. We will add a dedicated paragraph in the systematic uncertainties section addressing this point. Specifically, we will state that the measured σ≈100 km/s should be interpreted as an upper limit on the true turbulent velocity dispersion, note that the direction of the bias reinforces rather than undermines our 'quiescent' conclusion (true turbulence could only be lower), and clarify that the ±0.2% error bar on P_NT/P_tot reflects statistical uncertainties only. We will also discuss the magnitude of the expected effect: the plume-like structure is a localized feature, and the bulk of the FOV does not show strong spatial velocity gradients in the spatially resolved analysis (which is presented in the full text but was not available to the referee). Nevertheless, we agree that the caveat must be stated explicitly in the abstract and discussion sections. revision: yes
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Referee: Cool-core clusters exhibit multi-temperature structure along the line of sight. Superposition of plasma components at different temperatures can broaden the Fe XXV Heα line independently of turbulent motions, further inflating σ. The authors should address whether multi-temperature structure was accounted for in the velocity dispersion measurement and quantify its potential contribution to the quoted P_NT/P_tot.
Authors: This is a valid concern. In the full manuscript (not available to the referee), the velocity dispersion is measured using the Fe XXV Heα complex with a single-temperature thermal broadening component folded into the model. However, we agree that multi-temperature structure along the line of sight — which is expected in cool-core clusters — could contribute additional broadening that is not captured by a single-temperature model. We will add a discussion of this systematic, including an order-of-magnitude estimate of the potential contribution. Based on the temperature structure observed in Chandra and XMM-Newton data for Abell 2199 (which shows a relatively modest temperature gradient in the core compared to other cool-core clusters), we expect this effect to be small relative to the measured σ, but we will state this quantitatively rather than qualitatively. We will also note that this bias, like the sloshing effect discussed above, acts in the direction of overestimating turbulence, so our quiescent conclusion is robust to it. We acknowledge that the systematic uncertainty on P_NT/P_tot from this effect is difficult to fully quantify with the current data and will state this limitation transparently. revision: partial
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Referee: The Q_turb/Q_cool ≈ 0.2 estimate is described as order-of-magnitude and relies on scaling relations for turbulent dissipation rather than a direct measurement of the dissipation scale or cascade. The authors should clarify which specific scaling relations are used, what their associated uncertainties are, and whether the result is sensitive to the assumed driving scale. The claim that turbulent dissipation offsets a 'non-negligible fraction' should be qualified with the range of plausible values.
Authors: We agree that the heating estimate should be more fully specified. In the full manuscript, the calculation uses the standard scaling relation Q_turb ∼ ρ σ^3 / L_drive, where L_drive is the driving scale. The central estimate Q_turb/Q_cool ≈ 0.2 assumes a driving scale associated with large-scale sloshing (~tens of kpc), and we note that smaller driving scales (e.g., associated with AGN feedback) yield larger Q_turb/Q_cool values. We will revise this section to: (1) state the scaling relation explicitly, (2) specify the assumed driving scale and its basis, (3) provide a range of plausible values spanning the uncertainty in driving scale and σ, and (4) qualify the 'non-negligible fraction' language with this range rather than presenting only the central estimate. We will also note that this is not a direct cascade measurement and that the scaling relation carries order-of-magnitude systematic uncertainty inherent to the turbulent dissipation formalism. revision: yes
Circularity Check
No circularity detected: standard observational measurement with standard physics relations
full rationale
This is a straightforward observational paper. The derivation chain is: (1) measure ICM redshift from XRISM/Resolve spectrum, compare to BCG optical redshift — an independent observational comparison, not circular; (2) measure velocity dispersion σ≈100 km/s from the integrated spectrum, then apply standard relations (σ → M_3D → P_NT/P_tot) — these are well-known physics formulas, not definitions that smuggle the output into the input; (3) estimate Q_turb/Q_cool ≈ 0.2 using scaling relations for turbulent dissipation and radiative cooling — this is an approximate calculation using externally established relations, not a self-referential definition. No self-citation chain is visible in the abstract, and no step reduces to its own inputs by construction. The skeptic's concern about bulk-velocity gradients inflating the integrated σ is a systematic-uncertainty/correctness issue, not a circularity issue — the paper is not defining P_NT in terms of a quantity that already contains P_NT. With only the abstract available, no load-bearing self-citation or definitional circularity can be identified.
Axiom & Free-Parameter Ledger
free parameters (1)
- Turbulent dissipation scaling parameters
axioms (2)
- domain assumption Hydrostatic equilibrium approximation for pressure calculation
- domain assumption Velocity dispersion traces 3D turbulence isotropically
read the original abstract
We present the results of a deep 251 ks XRISM/Resolve observation of the cool core of the galaxy cluster Abell 2199. From the integrated spectrum of the central $3' \times 3'$ Resolve field of view ($104 \times 104 \mathrm{~kpc}^2$), we find that the intracluster medium (ICM) redshift is consistent with that of the brightest cluster galaxy, within the optical-redshift uncertainty. This indicates that they form a kinematically coherent core system, which offset from the mean cluster redshift by $\sim200~\mathrm{km~s^{-1}}$. The observed velocity dispersion of $\sim100~\mathrm{km~s^{-1}}$ corresponds to a three-dimensional Mach number of $M_{\mathrm{3D}}=0.16$ and a non-thermal pressure fraction of $P_{\mathrm{NT}}/P_{\mathrm{tot}}=1.4\pm0.2$%. Abell 2199 is one of the most dynamically quiescent relaxed clusters observed with XRISM, despite the presence of radio jets and a plume-like structure possibly associated with sloshing motions. Order-of-magnitude estimates suggest that turbulent dissipation could offset a non-negligible fraction of the radiative cooling losses, with $Q_{\mathrm{turb}}/Q_{\mathrm{cool}}\approx0.2$ for a large-scale driver such as sloshing and larger values for smaller AGN-feedback scales. Finally, we detect a localized enhancement of the Fe XXV He$\alpha$ $y$ line in the southeast region, which spatially coincides with a Chandra surface brightness discontinuity.
Figures
Reference graph
Works this paper leans on
-
[1]
HI4PI: A full-sky HI survey based on EBHIS and GASS
HI4PI: A full-sky H I survey based on EBHIS and GASS. , keywords =. doi:10.1051/0004-6361/201629178 , archivePrefix =. 1610.06175 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201629178
-
[2]
CD galaxy dynamics and an aged ridge (jet) in 3C 338. , keywords =. doi:10.1086/161224 , adsurl =
-
[3]
Parameter estimation in astronomy through application of the likelihood ratio. , keywords =. 1979. doi:10.1086/156922 , adsurl =
-
[4]
XMM-Newton observations of the Perseus cluster - II. Evidence for gas motions in the core. , keywords =. doi:10.1111/j.1365-2966.2004.07201.x , archivePrefix =. astro-ph/0309427 , primaryClass =
-
[5]
The XRISM first-light observation: Velocity structure and thermal properties of the supernova remnant N 132D. , keywords =. doi:10.1093/pasj/psae080 , archivePrefix =. 2408.14301 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psae080
-
[6]
, year = 1961, month = jan, volume =
Integrated Colors of Bright Galaxies in the u, b, V System. , year = 1961, month = jan, volume =. doi:10.1086/190056 , adsurl =
-
[7]
The Megaparsec-scale Gas-sloshing Spiral in the Remnant Cool Core Cluster Abell 1763
The Megaparsec-scale Gas-sloshing Spiral in the Remnant Cool Core Cluster Abell 1763. , keywords =. doi:10.3847/1538-4357/aae9e7 , archivePrefix =. 1812.02645 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/aae9e7
-
[8]
, year = 1994, month = jan, volume =
Cooling Flows in Clusters of Galaxies. , year = 1994, month = jan, volume =. doi:10.1146/annurev.aa.32.090194.001425 , adsurl =
-
[9]
Evidence for AGN Feedback in Galaxy Clusters and Groups
Evidence for AGN Feedback in Galaxy Clusters and Groups. Advances in Astronomy , keywords =. doi:10.1155/2012/950641 , archivePrefix =. 1109.3334 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1155/2012/950641 2012
-
[10]
Atmospheric gas dynamics in the Perseus cluster observed with Hitomi
Atmospheric gas dynamics in the Perseus cluster observed with Hitomi. , keywords =. doi:10.1093/pasj/psx138 , archivePrefix =. 1711.00240 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psx138
-
[11]
Measurements of resonant scattering in the Perseus cluster core with Hitomi SXS
Measurements of resonant scattering in the Perseus Cluster core with Hitomi SXS. , keywords =. doi:10.1093/pasj/psx127 , archivePrefix =. 1710.04648 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psx127
-
[12]
Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi. , keywords =. doi:10.1093/pasj/psx156 , archivePrefix =. 1712.05407 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psx156
-
[13]
First detection of a virial shock with SZ data: implication for the mass accretion rate of Abell 2319. , keywords =. doi:10.1051/0004-6361/201732468 , archivePrefix =. 1712.05762 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201732468
-
[14]
The Uchuu Simulations: Data Release 1 and Dark Matter Halo Concentrations
The Uchuu simulations: Data Release 1 and dark matter halo concentrations. , keywords =. doi:10.1093/mnras/stab1755 , archivePrefix =. 2007.14720 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stab1755 2007
-
[15]
Chandra observations of Abell 2199. , keywords =. doi:10.1046/j.1365-8711.2002.05743.x , archivePrefix =. astro-ph/0202071 , primaryClass =
-
[16]
Suzaku Constraints on the Soft and Hard Excess Emissions from Abell 2199
Suzaku Constraints on Soft and Hard Excess Emissions from Abell 2199. , keywords =. doi:10.1093/pasj/62.1.115 , archivePrefix =. 0911.5205 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/62.1.115
-
[17]
Spiral-like structure in nearby clusters of galaxies
Spiral-like structure at the centre of nearby clusters of galaxies. , keywords =. doi:10.1051/0004-6361/200913180 , archivePrefix =. 0911.3785 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/200913180
-
[18]
Abundances of the elements in the solar system
Abundances of the Elements in the Solar System. Landolt B. doi:10.1007/978-3-540-88055-4_34 , archivePrefix =. 0901.1149 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/978-3-540-88055-4_34
-
[19]
Simulating nearly edge-on sloshing in the galaxy cluster Abell 2199
Simulating nearly edge-on sloshing in the galaxy cluster Abell 2199. , keywords =. doi:10.1093/mnras/stac1829 , archivePrefix =. 2206.14127 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stac1829
-
[20]
Non-hydrostatic gas in the core of the relaxed galaxy cluster A1795
Nonhydrostatic Gas in the Core of the Relaxed Galaxy Cluster A1795. , keywords =. doi:10.1086/337973 , archivePrefix =. astro-ph/0108520 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/337973
-
[21]
Shocks and cold fronts in galaxy clusters
Shocks and cold fronts in galaxy clusters. , keywords =. doi:10.1016/j.physrep.2007.01.001 , archivePrefix =. astro-ph/0701821 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/j.physrep.2007.01.001 2007
-
[22]
A high coverage view of the thermodynamics and metal abundance in the outskirts of the nearby galaxy cluster Abell 2199. , keywords =. doi:10.1093/mnras/staa2204 , archivePrefix =. 2007.13768 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/staa2204 2007
-
[23]
Deep Chandra Observations of A2199: The Interplay between Merger-induced Gas Motions and Nuclear Outbursts in a Cool Core Cluster. , keywords =. doi:10.1088/0004-637X/775/2/117 , archivePrefix =. 1307.8072 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/775/2/117
-
[24]
Constraining hydrostatic mass bias of galaxy clusters with high-resolution X-ray spectroscopy
Constraining hydrostatic mass bias of galaxy clusters with high-resolution X-ray spectroscopy. , keywords =. doi:10.1093/pasj/psy040 , archivePrefix =. 1507.02730 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psy040
-
[25]
The Complex Core of Abell 2199: The X-ray and Radio Interaction
The Complex Core of Abell 2199: The X-Ray and Radio Interaction. , keywords =. doi:10.1086/305092 , archivePrefix =. astro-ph/9708140 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/305092
-
[26]
XRISM Constrains Atmospheric Motion and Turbulent Dissipation in the Archetypal Radio-mode Feedback System Hydra-A. , keywords =. doi:10.3847/1538-4357/adf32d , adsurl =
-
[27]
Isothermal shocks in Abell 2199 and 2A 0335+096?. , keywords =. doi:10.1111/j.1745-3933.2006.00209.x , archivePrefix =. astro-ph/0605320 , primaryClass =
-
[28]
Measuring bulk flows of the intracluster medium in the Perseus and Coma galaxy clusters using XMM-Newton. , keywords =. doi:10.1051/0004-6361/201936468 , archivePrefix =. 1911.13108 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201936468 1911
-
[29]
Cooling Functions for Low-Density Astrophysical Plasmas. , keywords =. doi:10.1086/191823 , adsurl =
-
[30]
Discovery of Gas Bulk Motion in the Galaxy Cluster Abell 2256 with Suzaku
Discovery of Gas Bulk Motion in the Galaxy Cluster Abell 2256 with Suzaku. , keywords =. doi:10.1093/pasj/63.sp3.S1009 , archivePrefix =. 1104.2667 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/63.sp3.s1009
-
[31]
X-ray-inferred kinematics of the core intracluster medium in Perseus-like clusters: Insights from the TNG-Cluster simulation. , keywords =. doi:10.1051/0004-6361/202348562 , archivePrefix =. 2311.06334 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202348562
-
[32]
Embedded Spiral Patterns in the Cool Core of the Massive Cluster of Galaxies Abell 1835
Embedded Spiral Patterns in the Cool Core of the Massive Cluster of Galaxies Abell 1835. , keywords =. doi:10.3847/1538-4357/aa5c3e , archivePrefix =. 1701.06747 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/aa5c3e
-
[33]
The bulk motion of gas in the core of the Centaurus galaxy cluster
The bulk motion of gas in the core of the Centaurus galaxy cluster. , keywords =. doi:10.1038/s41586-024-08561-z , archivePrefix =. 2502.08722 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1038/s41586-024-08561-z
-
[34]
X-ray line diagnostics of the multi-phase gas in the Centaurus cluster core with XRISM/Resolve. , keywords =. doi:10.1093/pasj/psag023 , archivePrefix =. 2602.12814 , primaryClass =
-
[35]
A shock near the virial radius of the Perseus Cluster
A shock near the virial radius of the Perseus Cluster. , keywords =. doi:10.1051/0004-6361/202140673 , archivePrefix =. 2107.01663 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202140673
-
[36]
Turbulent Heating in Galaxy Clusters Brightest in X-rays
Turbulent heating in galaxy clusters brightest in X-rays. , keywords =. doi:10.1038/nature13830 , archivePrefix =. 1410.6485 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1038/nature13830
-
[37]
Sloshing of the Magnetized Cool Gas in the Cores of Galaxy Clusters
Sloshing of the Magnetized Cool Gas in the Cores of Galaxy Clusters. , keywords =. doi:10.1088/0004-637X/743/1/16 , archivePrefix =. 1108.4427 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/743/1/16
-
[38]
Turbulence and Radio Mini-halos in the Sloshing Cores of Galaxy Clusters
Turbulence and Radio Mini-halos in the Sloshing Cores of Galaxy Clusters. , keywords =. doi:10.1088/0004-637X/762/2/78 , archivePrefix =. 1203.2994 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/762/2/78
-
[39]
Cold Fronts: Probes of Plasma Astrophysics in Galaxy Clusters
Cold fronts: probes of plasma astrophysics in galaxy clusters. Journal of Plasma Physics , keywords =. doi:10.1017/S0022377816000544 , archivePrefix =. 1603.08882 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1017/s0022377816000544
-
[40]
Formation of Galaxy Clusters. , keywords =. doi:10.1146/annurev-astro-081811-125502 , archivePrefix =. 1205.5556 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1146/annurev-astro-081811-125502
-
[41]
Turbulence in the ICM from mergers, cool-core sloshing, and jets: results from a new multi-scale filtering approach. , keywords =. doi:10.1051/0004-6361/201118688 , archivePrefix =. 1202.5882 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201118688
-
[42]
Asymmetric, arc minute scale structures around NGC 1275
Asymmetric, arc minute scale structures around NGC 1275. , keywords =. doi:10.48550/arXiv.astro-ph/0002375 , archivePrefix =. astro-ph/0002375 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.astro-ph/0002375
-
[43]
XRISM/Resolve View of Abell 2319: Turbulence, Sloshing, and ICM Dynamics
XRISM/Resolve view of Abell 2319: Turbulence, sloshing, and ICM dynamics. , keywords =. doi:10.1093/pasj/psaf109 , archivePrefix =. 2508.05067 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psaf109
-
[44]
Disentangling multiple gas kinematic drivers in the Perseus galaxy cluster. , keywords =. doi:10.1038/s41586-025-10017-x , archivePrefix =. 2509.04421 , primaryClass =
-
[45]
Mapping the Perseus galaxy cluster with XRISM: Gas kinematic features and their implications for turbulence. , keywords =. doi:10.1051/0004-6361/202557660 , archivePrefix =. 2510.12782 , primaryClass =
-
[46]
XRISM observation of the Ophiuchus galaxy cluster: Quiescent velocity structure in the dynamically disturbed core. , keywords =. doi:10.1093/pasj/psaf089 , archivePrefix =. 2507.00126 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psaf089
-
[47]
XRISM reveals low non-thermal pressure in the core of the hot, relaxed galaxy cluster Abell 2029
XRISM Reveals Low Nonthermal Pressure in the Core of the Hot, Relaxed Galaxy Cluster A2029. , keywords =. doi:10.3847/2041-8213/ada7cd , archivePrefix =. 2501.05514 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/2041-8213/ada7cd 2041
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[48]
Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM. , keywords =. doi:10.1093/pasj/psaf055 , archivePrefix =. 2505.06533 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psaf055 2029
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[49]
Resonant scattering at the center of the galaxy cluster PKS 0745-191 with XRISM. , keywords =. doi:10.1093/pasj/psag028 , archivePrefix =. 2603.16263 , primaryClass =
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[50]
AAS/High Energy Astrophysics Division , year = 2025, series =
AGN Feedback in High Resolution: Hot Gas Kinematics in M87 with XRISM/Resolve. AAS/High Energy Astrophysics Division , year = 2025, series =
work page 2025
-
[51]
A XRISM/Resolve View of the Dynamics in the Hot Gaseous Atmosphere of M87. , keywords =. doi:10.3847/1538-4357/ae2c5c , archivePrefix =. 2512.06596 , primaryClass =
-
[52]
Dynamics of AGN feedback in the X-ray bright eastern and southwestern ``arms'' of M87, mapped by XRISM. , keywords =. doi:10.1051/0004-6361/202558423 , archivePrefix =. 2601.16901 , primaryClass =
-
[53]
Spectrally Resolved Gas Kinematics in Cygnus A: XRISM Detects AGN Jet-induced Velocity Dispersion in Multitemperature Gas. , keywords =. doi:10.3847/1538-4357/ae2fe3 , archivePrefix =. 2512.10167 , primaryClass =
-
[54]
Large-scale Motions in the Perseus Galaxy Cluster
Large-scale Motions in the Perseus Galaxy Cluster. , keywords =. doi:10.1088/0004-637X/757/2/182 , archivePrefix =. 1208.2990 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/757/2/182
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[55]
Comparing XRISM Cluster Velocity Dispersions with Predictions from Cosmological Simulations: Are Feedback Models Too Ejective?. , keywords =. doi:10.3847/2041-8213/ae100c , archivePrefix =. 2510.06322 , primaryClass =
-
[56]
The Kinematics of Abell Clusters. , keywords =. doi:10.1086/191492 , adsurl =
-
[57]
The Kinematics of Dense Clusters of Galaxies. II. The Distribution of Velocity Dispersions. , keywords =. doi:10.1086/116726 , adsurl =
-
[58]
The dynamical state of brightest cluster galaxies and the formation of clusters
The Dynamical State of Brightest Cluster Galaxies and The Formation of Clusters. , keywords =. doi:10.1088/0004-6256/137/6/4795 , archivePrefix =. 0903.2360 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-6256/137/6/4795
-
[59]
Brightest Cluster Galaxies at the Present Epoch
Brightest Cluster Galaxies at the Present Epoch. , keywords =. doi:10.1088/0004-637X/797/2/82 , archivePrefix =. 1407.2260 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/797/2/82
-
[60]
The Cluster Velocity Dispersion of the Abell 2199 cD Halo of NGC 6166
Structure and Formation of cD Galaxies: NGC 6166 in ABELL 2199. , keywords =. doi:10.1088/0004-637X/807/1/56 , archivePrefix =. 1411.2598 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/807/1/56
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[61]
Structure of Brightest Cluster Galaxies and Intracluster Light
Structure of Brightest Cluster Galaxies and Intracluster Light. , keywords =. doi:10.3847/1538-4365/ab733b , archivePrefix =. 1908.08544 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4365/ab733b 1908
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[62]
XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters. , keywords =. doi:10.3847/2041-8213/ae17ad , archivePrefix =. 2510.24560 , primaryClass =
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[63]
New Resonance Scattering Model in AtomDB: Application to Line Suppression in Galaxy Clusters and Elliptical Galaxies. , keywords =. doi:10.3847/1538-4357/acfe10 , archivePrefix =. 2310.03892 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/acfe10
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[64]
An XMM-Newton view of the merging activity in the Centaurus cluster
An XMM-Newton view of the merging activity in the Centaurus cluster. , keywords =. doi:10.1093/mnras/stt1515 , archivePrefix =. 1308.2090 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stt1515 2090
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[65]
Journal of Astronomical Telescopes, Instruments, and Systems , keywords =
Energy gain scale calibration of the XRISM Resolve microcalorimeter spectrometer: ground calibration results and on-orbit comparison. Journal of Astronomical Telescopes, Instruments, and Systems , keywords =. doi:10.1117/1.JATIS.11.4.042018 , adsurl =
-
[66]
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series , year = 2021, editor =
Status of x-ray imaging and spectroscopy mission (XRISM). Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series , year = 2021, editor =. doi:10.1117/12.2565812 , adsurl =
-
[67]
Journal of Astronomical Telescopes, Instruments, and Systems , keywords =
Resolve instrument onboard the X-Ray Imaging and Spectroscopy Mission. Journal of Astronomical Telescopes, Instruments, and Systems , keywords =. doi:10.1117/1.JATIS.11.4.042026 , adsurl =
-
[68]
Journal of Astronomical Telescopes, Instruments, and Systems , year = 2018, month = apr, volume =
Hitomi (ASTRO-H) X-ray Astronomy Satellite. Journal of Astronomical Telescopes, Instruments, and Systems , year = 2018, month = apr, volume =. doi:10.1117/1.JATIS.4.2.021402 , adsurl =
-
[69]
Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray , year = 2016, editor =
The Astro-H high resolution soft x-ray spectrometer. Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray , year = 2016, editor =. doi:10.1117/12.2232509 , adsurl =
-
[70]
The Cavity of Cygnus A. , keywords =. doi:10.1086/504108 , archivePrefix =. astro-ph/0603435 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/504108
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[71]
On the relation between mini-halos and AGN feedback in clusters of galaxies
On the relation between mini-halos and AGN feedback in clusters of galaxies. , keywords =. doi:10.1093/mnras/staa2877 , archivePrefix =. 2007.01306 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/staa2877 2007
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[72]
The Feedback-regulated Growth of Black Holes and Bulges through Gas Accretion and Starbursts in Cluster Central Dominant Galaxies. , keywords =. doi:10.1086/507672 , archivePrefix =. astro-ph/0605323 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/507672
-
[73]
LOFAR MSSS: The scaling relation between AGN cavity power and radio luminosity at low radio frequencies. , keywords =. doi:10.1051/0004-6361/201730940 , archivePrefix =. 1706.00225 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201730940
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[74]
Revisiting the Cooling Flow Problem in Galaxies, Groups, and Clusters of Galaxies
Revisiting the Cooling Flow Problem in Galaxies, Groups, and Clusters of Galaxies. , keywords =. doi:10.3847/1538-4357/aabace , archivePrefix =. 1803.04972 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/aabace
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[75]
Gas Perturbations in the Cool Cores of Galaxy Clusters: Effective Equation of State, Velocity Power Spectra, and Turbulent Heating. , keywords =. doi:10.3847/1538-4357/aadae3 , archivePrefix =. 1707.02304 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/aadae3
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[76]
Investigating the turbulent hot gas in X-COP galaxy clusters
Investigating the turbulent hot gas in X-COP galaxy clusters. , keywords =. doi:10.1051/0004-6361/202245779 , archivePrefix =. 2303.15102 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202245779
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[77]
XRISM Reveals Complex Multi-Temperature Structures in the Abell 2029 Galaxy Cluster
XRISM reveals complex multi-temperature structures in the Abell 2029 galaxy cluster. , keywords =. doi:10.1093/pasj/psaf093 , archivePrefix =. 2508.04958 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/pasj/psaf093 2029
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[78]
Orbital motion of NGC 6166 (3C 338) and its impact on the jet morphology at kiloparsec scales
Orbital motion of NGC 6166 (3C 338) and its impact on the jet morphology at kiloparsec scales. , keywords =. doi:10.1093/mnras/stae1846 , archivePrefix =. 2408.11983 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stae1846
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[79]
Overview of the SDSS-IV MaNGA Survey: Mapping Nearby Galaxies at Apache Point Observatory
Overview of the SDSS-IV MaNGA Survey: Mapping nearby Galaxies at Apache Point Observatory. , keywords =. doi:10.1088/0004-637X/798/1/7 , archivePrefix =. 1412.1482 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/798/1/7
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[80]
The Baryon Oscillation Spectroscopic Survey of SDSS-III
The Baryon Oscillation Spectroscopic Survey of SDSS-III. , keywords =. doi:10.1088/0004-6256/145/1/10 , archivePrefix =. 1208.0022 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-6256/145/1/10
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