First detection of SO and SO2 in a B[e] supergiant ejecta, with chemical models reproducing high SO2 abundance in ~10^4 yr and low 32SO/33SO ratio attributed to photochemistry-driven fractionation.
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- background 10.3390/atoms13060052. [29] F.A. Jenkins, E. Segr` e. Phys. Rev.,55, 52 (1939). DOI: 10.1103/PhysRev.55.52. [30] L.I. Schiff, H. Snyder. Phys. Rev.,55, 59 (1939). DOI: 10.1103/PhysRev.55.59. [31] G.W. Preston. Astrophys. J.,160, L143 (1970). DOI: 10.1086/180547. [32] S.B. Kemic. Astrophysics and Space Science,36, 459 (1975). DOI: 10.1007/BF00645268. [33] C. Moran, T.R. Marsh, V.S. Dhillon. Monthly Notices of the Royal Astronomical Society,299, 218 (1998). DOI: 10.1046/j.1365-8711.1998.01763.x. 1
- background It is well known that capturing key physics in the synthetic models - from stellar energetics and spectra, and in particular the treatment of the thermally puls- ing asymptotic-giant-branch (TP-AGB) phase - is key to avoid systematic uncertainties in the derived galaxy physical parameters. TP-AGB stars dominate the NIR light of intermediate-age stellar populations (∼0.2-2 Gyr) in C. Maraston (1998, 2005) evolutionary population synthe- sis models, producing numerous NIR features, including molec
- background The characteristic granule lifetime is estimated as Tgra ≈ dgra σ1D ≈2.9m −1 22 σ1D 100 km s−1 −2 Myr.(27) The dynamical effects of these density fluctuations can be modeled by treating FDM granules as quasiparticles (Bar-Or et al. 2019; El-Zant et al. 2020; Cha- vanis 2021; Dutta Chowdhury et al. 2021). Assuming a Maxwellian velocity distribution, the effective particle mass is Mgra ≈ πρd3 6 ,(28) whereρdenotes the local dark matter density. The granule size remains approximately constant in
- background 2025). Moreover, under the same approximation, the baryonic inflow rate is expressed as ˙Mb ≃144M ⊙ yr−1fb,0.16T 3/2 vir,6 1 +z 10 ,(6) whereT vir,6 =T vir/(106 K) is the normalized halo virial temperature. Therefore, if the gas supply feeds the nu- clear region of a massive halo with a virial temperature ofT vir,6 ≃1, this rate corresponds to∼ O(100)× ˙MEdd for a BH withM BH ≲10 7 M⊙. Such an inflow is sufficient to confine ionizing radiation from the central AGN through efficient radiative
- method thusζhas to transform likeζ→ζ−αin order for the pro- jected shear to stay invariant. The polar angles transform like φi →φ i −αand therefore the coefficients need to satisfy the identitya 1 +a 2 +a 3 =1. The choice forζis arbitrary, as long as it meets the two conditions above. Choosing another projection angleζ ′ = a′ 1φ1 +a ′ 2φ2 +a ′ 3φ3 changes the 4PCF only by the phase factor e2i(ζ′−ζ) =e 2i[(a1−a′ 1)ϕ12+(a′ 3−a3)ϕ23]. Throughout the following work, Article number, page 4 of 19 Jonathan Oe
- background (a) Detected filaments around Abell 2744. The dashed green circles mark radii of 1, 2.2, and 3.4 Mpc, respectively. The red (cyan) arrows indicate the best-fit directions measured in the inner (outer) annulus. The shaded regions represent the 16th-84th percentile ranges from 1000 bootstrap realizations. The white contours show the reconstructed WL mass map atκ= [0.12,0.24,0.36,0.48,0.6,0.7]. The yellow circles mark cluster member galaxies. The magenta star denotes the reference point adopted for
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citing papers explorer
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The WISSHFUL program: the highest redshift UFO discovered in a non-lensed QSO
Detection of a variable stratified UFO with velocities 0.1c and 0.3c, extreme mass outflow rates, and kinetic powers of 1-10% of bolometric luminosity in quasar WISSH13 at z=3.294.
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From Internal Collision to Photon Escape: First-Principles Modeling of Radiation-Mediated Shocks in Gamma-Ray Burst Photospheres
Self-consistent simulations reveal that reverse shocks in GRB photospheres stay radiation-mediated down to optical depths of a few tenths, with photons decoupling over a broad radial range and forming a quasi-thermal post-cursor.
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The impact of stellar binaries and star cluster dynamics on pair-instability supernovae
Binary interactions and cluster dynamics boost PISN rates by up to 3x versus single stars, enabling constraints on stellar-wind mass loss and galaxy metallicity distributions.
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Stellar black hole binaries from two common envelope evolution phases in triple stellar systems
A triple-star channel with two common envelope evolution phases produces merging black hole binaries with positive average χ_eff and a tail of negative values.
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Rapid quasi-periodic reconfiguration of the accretion column in pulsar 1A 0535+262
Quasi-periodic flux variations in pulsar 1A 0535+262 are accompanied by synchronized cyclotron line energy oscillations, providing evidence for rapid geometric reconfiguration of the accretion column in the radiation-pressure-dominated regime.
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Discovery and Analysis of a Type II Supernova Candidate at z = 3.19 from JWST's COSMOS-Web Survey
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A Radio Changing-state Jet in the Narrow-line Seyfert 1 Galaxy J1105+1452
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Plasma Dynamics of Radiative Cooling Accretion Flow in AM Herculis with XRISM
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The RRATalog: a Galactic census of rotating radio transients
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Tracing the Orbital Motion of the Accreting White Dwarf in EX~Hydrae with XRISM/Resolve
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Parsec-scale polarimetry and kinematics of a spine-sheath jet in the neutrino-blazar TXS 0506+056
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Modeling Gamma-Ray Burst Spectra with Convolutional Neural Networks: Fast-Cooling Synchrotron Emission in a Decaying Magnetic Field
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The X-ray emission of the long-period transient and accreting cataclysmic variable ASKAP J174508.9-505149
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Simulation based parameter space for shock in transonic, sub-Keplerian accretion flow onto non-rotating black holes
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Simulation-Based Prediction of Black Hole Fe K$\alpha$ Line Profiles
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GeV {\gamma}-ray emission in the low-mass star-forming region AFGL 490
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Bolometric correction factor and radiative efficiency for the super-Eddington accretion flow in tidal disruption events
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Radiation-pressure instability is an artifact of constant-$\alpha$ closure
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Deep Newtonian Afterglows: Theoretical Light Curves for Quasi-spherical Outflows
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A Log-Uniform Initial Magnetic Field Distribution Explains Pulsar and Magnetar Populations through Magnetic Inclination Alignment
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Centrifugal instability of compressible flows and the hydrodynamic stability of accretion disks
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GRB 250706B/C: Insight-HXMT Discovery of a High-Luminosity Burst as a Candidate for Fallback-Regulated Accretion in the Prompt Emission
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A Weak Fe K$\beta$ Emission Line in the Broad-Line Radio Galaxy 3C 111 Observed with XRISM: An Ionized Wind Absorption Feature?
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Lack of Significant Orbital-Phase Locking in the Active Phases of the Recurrent Nova T CrB
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Exploring the Transitional Parameter Space of Blazars using Gamma-ray and X-ray Population Diagnostics
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Jet-Structure Imprint on the Curvature Tail of Gamma-Ray Burst Prompt Emission
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The Phenomenological Nature of Quasar-type Blazars (BZQ). I. Revisiting the Flat-Spectrum Paradigm
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The January 2010 flare of Mrk421: Insights from a stochastic acceleration model
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Fast-Cooling Synchrotron in Decaying Magnetic Fields: Implications for the GRB Spectral Distribution
Decaying magnetic fields in fast-cooling synchrotron emission partially harden the low-energy index but still produce a distribution centered near α ≈ −1.5, falling short of reproducing the observed GBM catalog at the population level.
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Constraining the Pulsar Beaming Fraction with TeV-Selected Galactic Pulsar Wind Nebulae and unidentified TeV Sources
TeV-selected PWNe and unidentified sources yield beaming fractions of 0.1-0.3 across radio, gamma-ray, and X-ray bands, with survey-to-survey differences explained by selection biases or older pulsars and reproducible via time-dependent opening angles.
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Oblique Shocks at Supernova Remnants in Massive Star Clusters: A Model for the Cosmic-Ray Knee Observed by LHAASO
Oblique shocks in massive star clusters accelerate cosmic rays to multi-PeV energies, reproducing the LHAASO-observed knee as a sequence of rigidity-dependent cutoffs from combined supernova and wind shocks.
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A Unified Model for Shock Interaction and $\gamma$-Ray Emission in Classical Novae
A toy model of reverse shocks in novae predicts GeV gamma rays near optical peak and potential TeV emission later, consistent with Fermi observations under an empirically thin post-shock layer.
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Relativistic ions with power-law spectra explain radio phoenixes
Relativistic ions with power-law spectra produce secondary e± that explain the curved radio spectra of phoenixes in galaxy clusters, fitting data better than aged-electron models with three parameters.
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Colour evolution in the radio afterglow of GRB 241025A
Multi-band data for GRB 241025A require an ad-hoc factor-500 increase in shocked-material optical depth to match the observed radio spectral evolution within a structured-jet forward-shock model.
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A Rare Gamma-ray Flaring episode of the Narrow-Line Seyfert 1 Galaxy 1H 0323+342
Multi-wavelength monitoring of a gamma-ray flare in 1H 0323+342 reveals sub-hour variability, jet-corona transition, and ~10^46 erg/s jet power via external Compton modeling of disk and BLR photons.
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Gamma-ray Bursts in the Radio Sky: the Role of the SKA-VLBI
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The Fundamental Planes of Black Hole Activity for High-Synchrotron-Peaked BL Lacertae Objects
A sample of 69 HBLs yields intrinsic radio-X-ray correlation L_R,int ∝ L_X,int^0.68 and fundamental plane log L_R,int = 0.57 log L_X,int + 0.33 log M_BH + 12.65, consistent with synchrotron cooling model for X-ray emission.
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Revisiting Disk Winds in Active Galactic Nuclei as an Origin of Cosmic Gamma-ray and Neutrino Backgrounds
Calibrated AGN disk-wind models contribute ≲5% to the CGB above 10 GeV and ≲10% to the CNB at 100 TeV and are unlikely to dominate either background.
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On The Nature of Einstein Probe Transient EP250916a: Insights from X-ray, Optical, and Radio Observations
Multi-wavelength data classify the Einstein Probe transient EP250916a as a faint hard-state black hole X-ray binary candidate.
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A synchro-curvature treatment of gamma-ray luminosity trends in pulsars
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JWST observations of a planetary nebula support jet-driven explosion of core-collapse supernova remnant RCW 103
Morphological similarity between JWST images of planetary nebula PMR 1 and X-ray images of CCSN remnant RCW 103 indicates that two pairs of jets shaped RCW 103, supporting the jittering-jets explosion mechanism.
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Searching for links between energetic millisecond pulsars and repeating fast radio bursts
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Radio-X-ray Time Lags in GX 339-4: Probing Magnetic Field Transport in Black Hole Accretion
Radio precedes X-ray Compton luminosity by ~3 days in the rising hard state but lags by ~8 days in the decaying hard state of GX 339-4, with inner magnetic field strength estimated from accretion rate and truncation radius accounting for both.
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Spectral-Regime Overlap and Transition-like Behavior in the Blazar Population from Multi-Instrument X-ray and TeV Observations
Multi-instrument observations reveal broad overlap in X-ray photon indices across blazar subclasses with intra-source spectral evolution supporting transition-like behavior.
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Tracking down the broadband polarimetric properties of PG 1553+113
New IXPE X-ray polarimetry and optical monitoring of PG 1553+113 reveal variable polarization and a large EVPA swing, supporting jet models with related but non-co-spatial X-ray and optical emission regions.
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Reproducing morphological features in the supernova remnant G11.2-0.3 by simulating jittering jets
Hydrodynamic simulations of three pairs of jittering jets in a CCSN reproduce the ring-and-bar morphology of SNR G11.2-0.3.
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Are Single-Zone Emission models Sufficient to Explain GRB 220426A and GRB 230812B?
Spectral width increases with time in GRB 220426A and GRB 230812B, challenging single-zone emission models and supporting multi-zone prompt emission.
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Detectability of Polarized Gamma-ray Emission from Blazar Flares with COSI
Estimates based on 17 years of Fermi LAT data indicate COSI may detect MeV polarization in a small number of blazar flares, with flat-spectrum radio quasars as the top targets.