Presents a fully photometric framework to measure individual cluster splashback radii and masses from SDSS data and constructs the first observational splashback mass function.
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and Tollerud, Erik J
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- method wards et al. 2006) v2024.12.1 to update the more accu- rate ephemeris of the source. Times of arrival (ToAs) were derived throughZ 2 searching, with the minimum phase in each profile serving as the ToA for the corre- sponding observation (Ge et al. 2012, 2019; Younes et al. 2020; Peng et al. 2026). For spectral analysis, we per- formed fitting using XSPEC (Arnaud 1996) v12.14.1, as part of HEASoft v6.34, which allowed us to model and analyze the spectra comprehensively. NICER data that partly ov
- method CXOU J191238.0+101043 is flatter than a single Gaussian function in radii larger than 5. ′′0. We then extracted the Chandra spectra from a 19. ′′0 radius circle centered on these sources. We performed a simple phenomenological fit with a power-law model in the 1-5 keV band, where the background is nearly negligible. We used XSPEC version 12.14.1 (K. A. Arnaud 1996) for the spectroscopy. The derived flux in the 2-10 keV band and power-law index are ∼1.5×10 −14 erg s −1 cm−2 and∼2.6 for CXOU J1912
- method 2025) indicate that the inclusion of DDO51 can substantially reduce the Teff-logg degeneracy inherent to broadband-only configurations. While the present work focuses on the data release and calibration of the DDO51 band, these results illustrate the expected role of DDO51 as the primary gravity-sensitive component of the SAGES system. The primary science drivers for the SAGES DDO51 observations include: (1) photometric pre-selection of giant stars for spectroscopic follow-up surveys; (2) large-
- method spectrum of 2CXO J0507 clearly shows hydrogen emis- sion lines and signatures of an M-dwarf donor (see Fig- ure 2), inconsistent with the helium-dominated donor, like in AM CVns (Ramsay et al. 2018) or helium CVs (Green et al. 2020). We performed additional Lomb- Scargle analysis using a two-term sinusoidal model to search for periodicity. We detected the strongest peak atP= 140.3211(2) min≈2.34 hr, which exceeds the 3σconfidence level. We identify this period as the or- bital period (orbital fr
- method the standardtardisradiation-field and plasma deter- 9 https://github.com/tardis-sn/tardis/tree/release-2025.03.23 Spectral Inference of SN 2014L5 T able 1.Model parameters and prior distributions tardisSample Grid a Inference Prior Parameter Distribution Range Parameter Distribution Range SN t[days] Uniform [8, 36] t[days] Uniform [8, 36] L[erg s −1] Log-uniform [6.31e+41, 3.98e+42] L[erg s −1] Log-uniform [6.31e+41, 3.98e+42] Densityb ρ0 [g cm−3 ] Log-uniform [3.16e-11, 1e-8] αρ c Uniform [-10,
- method To determine uncertainties, we bootstrap the datasets 10 5000 times for each model and epoch. In order to calculate flux as a function of wavelength, we employ an optically thin dust-emission model, Fν = κM d2 SN Bλ(λ, T).(3) We taked SN ≈36.0Mpc (Section 4.1), andB λ(λ, T)is the Planck blackbody function. The final parameter is the opac- ity, κ= 3 4ρa Qabs(λ),(4) whereQ abs is the absorption efficiency,ρis the density of the grain material, andais the average grain radius. We apply the optical
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representative citing papers
JWST nebular spectra detect cooling ~400 K carbonaceous dust emission in normal SN Ia 2023qov at +276 and +363 days, modeled as pre-existing circumstellar dust with mass ~10^{-4} M_sun located within ~1 light year.
Quantitative Bayesian inference using a deep-learning emulator detects 0.018-0.020 M_sun of helium in the Type Ic supernova 2014L.
First radio observations of SN 2023fyq detect a dense circumstellar shell with mass-loss rate ~0.004 solar masses per year ejected 0.7-3 years before explosion, consistent with a merger origin.
ALMA observations reveal ram-pressure stripping in five galaxies at z=2.51, the most distant confirmed instances, indicating environmental gas removal in a protocluster.
Blue straggler stars in old open clusters exhibit a Kraft break in rotation, with rapid rotators above the break and slow rotators below, indicating their envelopes behave like those of single stars.
The EDGES team publishes the first full public description of its 21-cm global-signal analysis pipeline, an open-source end-to-end software package, and the raw data from prior observations.
A 25-year Chandra catalog of 100 Sgr A* X-ray flares confirms that brighter flares are spectrally harder and strengthens prior correlations with duration and fluence.
A W-Net deep learning model detects asteroids in TESS data independently of trajectory by rotating training image cubes and using adaptive normalization for data scaling.
Spectroscopic members of the M92 stream yield a Milky Way bar pattern speed of 29.1 +0.7/-0.4 km s^{-1} kpc^{-1}.
ALMA Band 6 data detect SiO emission and masers up to v=8 in AGB stars, showing clumpy distributions, velocity gradients, and a tentative link between emission radius and mass-loss rate.
Detection of helium lines in Balmer-dominated shocks of Type Ia SNRs reveals enhanced helium in some remnants and challenges shock models, enabling new constraints on progenitor environments.
AGILE archival data reveal gamma-ray flares from a source matching IGR J17354-3255, with orbital phase correlation supporting physical association and high-energy emission from SFXTs.
Radiative damping of internal gravity waves dominates tidal evolution in TOI-5882, shortening the brown dwarf's engulfment timescale by a factor of 2-6 relative to classical models.
A ~40 solar-mass protostar in Sgr C is surrounded by a Keplerian disk of centrifugal radius 1300 au, free-falling streamers, and an envelope accretion rate of 7e-3 solar masses per year.
A new fitting methodology applied to UV absorption data recovers radial trends in galactic wind velocities and mass-loading factors by constraining initial hot and cool phase parameters in a multiphase model.
Massive black hole binary mergers produce orphaned low-frequency signals in PTA pulsar terms that can be stacked for archival multiband gravitational-wave detection.
A JWST census detects neutral ISM absorption in 76 of 309 galaxies at 0.6<z<4 and outflows in 26, indicating AGN-driven neutral outflows dominate in quiescent systems at cosmic noon.
Spectroscopic observations of six low-mass, metal-poor SLSN host galaxies reveal slow stellar-wind-driven outflows with velocities 37-104 km/s and mass-loading factors below 1 in the earliest phases of star formation.
pGMCA separation of Chandra data yields the first uncontaminated X-ray maps of Sgr A East, with spectral fits showing lower ionization age and higher electron density than prior reports.
A changing-look AGN exhibits a rapid accretion-driven spectral transition with broad-line region temperatures of approximately 11,800 K measured via Boltzmann plots and stable black hole mass estimates of 5 times 10 to the 7 solar masses across epochs.
Misaligned protostellar cores produce a spiral flow outflow in addition to the disk wind, with the spiral flow becoming dominant and more massive at misalignment angles of 60 degrees or greater.
A new catalogue of 56 OB associations within 1 kpc is produced from Gaia data using HDBSCAN, with most showing expansion and connections to local galactic features.
Calculation predicts ~60 lensed star transients per JWST pointing in the Cosmic Horseshoe, enabling spatial tests of dark matter and constraints on the stellar IMF.
citing papers explorer
-
The Splashback Mass Function of Galaxy Clusters from Photometric Data
Presents a fully photometric framework to measure individual cluster splashback radii and masses from SDSS data and constructs the first observational splashback mass function.
-
JWST Nebular Spectroscopy of SN 2023qov: Circumstellar Dust Emission in a Normal Type Ia Supernova
JWST nebular spectra detect cooling ~400 K carbonaceous dust emission in normal SN Ia 2023qov at +276 and +363 days, modeled as pre-existing circumstellar dust with mass ~10^{-4} M_sun located within ~1 light year.
-
Traces of Helium Detected in Type Ic Supernova 2014L
Quantitative Bayesian inference using a deep-learning emulator detects 0.018-0.020 M_sun of helium in the Type Ic supernova 2014L.
-
The first radio view of a type Ibn supernova in SN 2023fyq: Understanding the mass-loss history in the last decade before the explosion
First radio observations of SN 2023fyq detect a dense circumstellar shell with mass-loss rate ~0.004 solar masses per year ejected 0.7-3 years before explosion, consistent with a merger origin.
-
Ram-Pressure Stripping Caught in Action in a Forming Cluster at $z \sim 2.5$
ALMA observations reveal ram-pressure stripping in five galaxies at z=2.51, the most distant confirmed instances, indicating environmental gas removal in a protocluster.
-
Blue Straggler Stars in Old Open Clusters and the Kraft Break
Blue straggler stars in old open clusters exhibit a Kraft break in rotation, with rapid rotators above the break and slow rotators below, indicating their envelopes behave like those of single stars.
-
The EDGES Analysis Pipeline: Description and Validation
The EDGES team publishes the first full public description of its 21-cm global-signal analysis pipeline, an open-source end-to-end software package, and the raw data from prior observations.
-
The Demographics of Sagittarius A* X-ray Flares over 25 Years with Chandra
A 25-year Chandra catalog of 100 Sgr A* X-ray flares confirms that brighter flares are spectrally harder and strengthens prior correlations with duration and fluence.
-
Trajectory-Agnostic Asteroid Detection in TESS with Deep Learning
A W-Net deep learning model detects asteroids in TESS data independently of trajectory by rotating training image cubes and using adaptive normalization for data scaling.
-
Constraining the Galactic bar using the M92 stellar stream
Spectroscopic members of the M92 stream yield a Milky Way bar pattern speed of 29.1 +0.7/-0.4 km s^{-1} kpc^{-1}.
-
ATOMIUM: Inner circumstellar envelopes of oxygen-rich AGB stars as revealed by highly excited SiO lines
ALMA Band 6 data detect SiO emission and masers up to v=8 in AGB stars, showing clumpy distributions, velocity gradients, and a tentative link between emission radius and mass-loss rate.
-
Helium emission from Balmer-dominated shocks in Type Ia supernova remnants provides constraints to their progenitor systems
Detection of helium lines in Balmer-dominated shocks of Type Ia SNRs reveals enhanced helium in some remnants and challenges shock models, enabling new constraints on progenitor environments.
-
AGILE detection of transient {\gamma}-ray emission from the region of the supergiant fast X-ray transient source IGR J17354-3255
AGILE archival data reveal gamma-ray flares from a source matching IGR J17354-3255, with orbital phase correlation supporting physical association and high-energy emission from SFXTs.
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The Tale of a Hungry Subgiant and Its Brown Dwarf: Interior Radiative Damping Dominates the Tidal Evolution of TOI-5882
Radiative damping of internal gravity waves dominates tidal evolution in TOI-5882, shortening the brown dwarf's engulfment timescale by a factor of 2-6 relative to classical models.
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The Keplerian disk, envelope, and streamers surrounding an early O-type protostar in the Sagittarius C cloud of the Central Molecular Zone
A ~40 solar-mass protostar in Sgr C is surrounded by a Keplerian disk of centrifugal radius 1300 au, free-falling streamers, and an envelope accretion rate of 7e-3 solar masses per year.
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Resolving the Unresolved Galactic Winds in Multi-phase Models. I. Methodology and Application
A new fitting methodology applied to UV absorption data recovers radial trends in galactic wind velocities and mass-loading factors by constraining initial hot and cool phase parameters in a multiphase model.
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Archival Multiband Gravitational-Wave Signals from Massive Black Hole Binary Mergers
Massive black hole binary mergers produce orphaned low-frequency signals in PTA pulsar terms that can be stacked for archival multiband gravitational-wave detection.
-
A Census of Na D-traced neutral ISM and outflows at $0.6<z<4$
A JWST census detects neutral ISM absorption in 76 of 309 galaxies at 0.6<z<4 and outflows in 26, indicating AGN-driven neutral outflows dominate in quiescent systems at cosmic noon.
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Witnessing the onset of stellar winds in Super-Luminous Supernova Hosts: implications for star-formation-driven outflows in low and high-redshift galaxies
Spectroscopic observations of six low-mass, metal-poor SLSN host galaxies reveal slow stellar-wind-driven outflows with velocities 37-104 km/s and mass-loading factors below 1 in the earliest phases of star formation.
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Isolating Sgr A East: The First Uncontaminated X-ray Maps of a Galactic Center Supernova Remnant
pGMCA separation of Chandra data yields the first uncontaminated X-ray maps of Sgr A East, with spectral fits showing lower ionization age and higher electron density than prior reports.
-
Tracing Active Galactic Nuclei Properties Through a Changing-look Event
A changing-look AGN exhibits a rapid accretion-driven spectral transition with broad-line region temperatures of approximately 11,800 K measured via Boltzmann plots and stable black hole mass estimates of 5 times 10 to the 7 solar masses across epochs.
-
Multiple protostellar outflows from a single protostar with a misaligned disk
Misaligned protostellar cores produce a spiral flow outflow in addition to the disk wind, with the spiral flow becoming dominant and more massive at misalignment angles of 60 degrees or greater.
-
A new Gaia census of OB associations within 1 kpc
A new catalogue of 56 OB associations within 1 kpc is produced from Gaia data using HDBSCAN, with most showing expansion and connections to local galactic features.
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Lensed stars in galaxy-galaxy strong lensing -- a JWST prediction for the Cosmic Horseshoe
Calculation predicts ~60 lensed star transients per JWST pointing in the Cosmic Horseshoe, enabling spatial tests of dark matter and constraints on the stellar IMF.
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JWST's first view of the most vigorously star-forming cloud in the Galactic center -- Sagittarius B2
New JWST multi-filter imaging of Sgr B2 detects previously hidden massive stars and ionized structures while finding no extended young stellar objects, implying star formation there has only recently begun.
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The heart of NGC 5253 as seen with MUSE-NFM: nitrogen enrichment through stellar chemical feedback at parsec scales
High-resolution mapping reveals nitrogen enrichment around super star clusters in NGC 5253, attributed to Wolf-Rayet stars with material expelled to surrounding gas.
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Hitting the slopes: A spectroscopic view of UV continuum slopes of galaxies reveals a reddening at z > 9.5
JWST spectroscopy of 295 galaxies at 5.5 < z < 14.3 shows UV slope beta reddening at z > 9.5, with lack of dust as the main driver of bluer values and nebular continuum at T > 15,000 K able to reproduce the observed range without dust.
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GW190814: Gravitational Waves from the Coalescence of a 23 M$_\odot$ Black Hole with a 2.6 M$_\odot$ Compact Object
Detection of GW190814 from the coalescence of a 23 solar-mass black hole and a 2.6 solar-mass compact object, the most unequal-mass binary yet observed with gravitational waves.
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An extremely bright slow-rising afterglow from an off-axis jet in GRB 260310A
Multi-wavelength data on GRB 260310A support an off-axis jet model explaining weak prompt emission and bright delayed afterglow, including reverse-shock signatures and late X-ray rebrightening.
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Exoplanets in ancient stellar populations: occurrence constraints and hot-Jupiter candidates in the Galactic halo
Hot Jupiter occurrence in the Galactic halo is low at ~0.13% with no significant difference between in-situ and accreted populations, well below disk rates.
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X-Ray Polarization from the Gamma-Ray Binary LS I +61 303
X-ray polarization of 13.1% ± 3.0% is detected from LS I +61 303 at 4.2 sigma, with EVPA alignment to the binary axis depending on which set of orbital elements is adopted.
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Probing the IMF in the Early Universe -- Direct measurements in the Bo\"otes I UFD with JWST/NIRCam
The low-mass IMF in Boötes I is consistent with the Milky Way within 68% confidence for broken power-law and lognormal forms, indicating universality at low metallicity.
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The Distribution of Blue Straggler Stars in the Color-Magnitude Diagrams of Old Open Clusters
Blue straggler stars in old open clusters predominantly appear near the terminal-age main sequence because mass transfer from asymptotic giant branch donors enriches their cores with helium.
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Empirical estimates of how massive galaxies can be in {\Lambda}CDM
Corrected empirical limits show the most massive galaxies never exceed the theoretical baryonic maximum of 0.16 times halo virial mass, keeping observations consistent with LambdaCDM at all redshifts.
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You Shall Not Pass (Without Modeling): High-Resolution Analysis of KMT-2019-BLG-0253 using MORIA
MORIA pipeline applied to HST data for KMT-2019-BLG-0253 halves the number of viable solutions and measures a 0.65 solar-mass host with a 7-9 Earth-mass planet at 2.64 kpc.
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The diverse morphologies and evolution of low-luminosity edge-brightened radio galaxies
Low-luminosity FRII radio galaxies show higher core prevalence, comparable hotspots, and ~32% restarting/remnant behavior compared to bright FRIIs, revealing a highly diverse population where FRII dynamics occur at low powers.
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Kinematic Stratification in Extremely Red Quasars Revealed by JWST
JWST observations of ERQs show stratified gas kinematics via deblended optical emission lines, with UV lines dominated by scattered light and optical lines mixing scattered and obscured emission.
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Are Nucleosynthetic Yields Universal? Interpreting the Multi-Elemental Abundances of Quiescent Galaxies over Cosmic Time Using Milky Way Stars
Milky Way abundance trends act as effective empirical proxies for nucleosynthetic yields, recovering alpha and Fe-peak abundances in quiescent galaxies with 0.05 dex median offset versus 0.23 dex for theory, indicating largely universal yields.
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Tidal pre-conditioning and ram-pressure stripping in NGC 1427A. Deep VLT/MUSE spectroscopy and FUV-to-radio observations trace a Fornax Cluster dwarf in transformation
Multi-phase observations of NGC 1427A indicate tidal torquing from a dwarf fly-by has pre-conditioned its gas for ram-pressure stripping by the Fornax intracluster medium, placing the galaxy at the onset of environmental quenching with a declining star formation rate.
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A bright wideband radio burst from the isolated neutron star 2XMM J104608.7$-$594306
A second coherent radio burst spanning 704-4032 MHz with spectral index -2.18, 54% linear and 22% circular polarization, and an orthogonal polarization angle jump was detected from 2XMM J104608.7-594306, showing rare radio activity in sources thought to be radio-quiet.
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The Critical Mass in Galaxy Evolution
A simulation study finds that a hot gas halo at galaxy total mass ~10^12.5 solar masses suppresses cool gas accretion, driving a redshift-independent turnover in the stellar-to-total mass ratio via reduced in-situ star formation efficiency.
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Galaxy mergers and disk angular momentum evolution: stellar halos as a critical test
In TNG-50, 80% of Milky Way-mass galaxies align their present-day angular momentum with the orbital angular momentum of their most massive merger, and 81% of their stellar halos rotate prograde relative to the disk.
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Uniform Reinterpretation of Rocky Exoplanet Secondary Eclipse Observations and the Impact of Stellar and Orbital Uncertainties
Accounting for stellar and orbital uncertainties shows that predicted eclipse depths for bare-rock models of rocky exoplanets carry substantial uncertainty comparable to measurements, establishing a fundamental precision limit for atmospheric and compositional inferences.
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Radial Velocity Evidence for a Post-Mass-Transfer Massive Binary System: NaSt1
Radial velocity data reveal a 310-day orbital period in NaSt1 with opposing phases in two groups of emission lines, supporting its nature as a post-mass-transfer massive binary system.
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The Hubble sequence in JWST CEERS from unbiased galaxy morphologies
A Hubble-like sequence of galaxy morphologies exists by redshift 4, with low-mass galaxies as persistent star-forming disks and massive galaxies following either stable disk or rapid compaction-quenching paths.
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Morphological complexity of NGC 628 - a multiwavelength multiscale analysis using the ordinal pattern framework
Multiwavelength analysis of NGC 628 using ordinal pattern measures finds a ~200 pc characteristic scale separating star-formation-driven structures from larger dynamical morphology, with C-H trajectories converging to an isotropic Gaussian random field attractor.
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A TESS Test of the Hybrid Ring Strategy for Technosignature Searches Using GRB 221009A
First observational test of the hybrid ring technosignature strategy with GRB 221009A and TESS data identifies no credible signals but validates the method's feasibility for future searches.
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Winding Back the Clock: Recent Star Formation Histories of Massive Quiescent Galaxies Are Consistent With Their Rapid Number Density Evolution Since $\mathbf{z\sim7}$
Star formation histories inferred for z=2-5 massive quiescent galaxies imply past number densities that align with observed rapid evolution since z~7.
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Post-perihelion Coma Composition of the Interstellar Comet 3I/ATLAS from Optical Spectroscopy
Post-perihelion optical spectroscopy of 3I/ATLAS reveals less C2 depletion than pre-perihelion, perihelion asymmetry in CN and metal production, metal release tied to CO rather than H2O, and residual [O I] emission indicating additional oxygen parents.
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A window for water-hydrogen demixing on warm metal-rich sub-Neptunes
Water-hydrogen demixing occurs on warm sub-Neptunes with envelope metallicities of 150-700 times solar, including TOI-270 d, implying layered interiors and underestimated bulk metallicities when using fully-miscible models.