Astrophysics · Physics & Astronomy
Astrophysics of Galaxies
The newest papers in Astrophysics of Galaxies that ReadSearch has read, newest first. Each links to its own page, with its authors, date, where it was published and the original.
1,212 papers, from 6 September 2026 to 5 November 2026: 1,212 arXiv preprints.
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Newest papers, page 7
Gaia's dark partners: A new signature of dissipative dark matter
The Gaia mission has greatly improved our understanding of the stellar binary population.Jets and winds from the most powerful compact object in NGC 5408
Super-critical accretion onto stellar-mass compact objects is sometimes revealed by ultraluminous X-ray sources (ULXs).Surface Nitrogen enrichment from the LMC to the Early Universe: the roles of rotation, overshooting and mass loss
The strong nitrogen (N) features observed in high-redshift galaxies, such as GN-z11, with JWST point to an efficient source of N production in the early Universe.Tiny Galaxies, Mighty Nitrogen: Linking Chemical Anomalies to Compact Galaxies at High Redshift using JWST/JADES
The origin of anomalous chemical enrichment in high-redshift galaxies discovered by JWST remains a key question in galaxy evolution.Ly$α$ in Compact Broad-Line Emitters, Including Little Red Dots, Is More Closely Linked to the Host Galaxy than to the Broad-Line Nucleus
JWST has found many faint broad-line AGN at $z>4$, but it is unclear whether the Ly$α$ we see from them comes from the accreting black hole or from its host galaxy.A full chemical network treatment of supermassive black hole seed formation from dark matter annihilation or decay
The recent discoveries of high-redshift quasars at $z\sim6-10.1$ present a challenge to conventional supermassive black hole (SMBH) formation scenarios: their central SMBHs are too large to have…Isophotal signatures of the brightest cluster galaxy - intracluster light transition
The distinction between brightest cluster galaxies (BCGs) and intracluster light (ICL) remains ambiguous, with inferred cluster properties depending strongly on the adopted definition and…Galactic-Scale Distribution of 10Be and Its Implications for the Early Solar System 10Be/9Be
Meteoritic inclusions indicate that the early Solar System contained a substantial abundance of the short-lived radionuclide 10Be.The STARfall pathway: forging intermediate-mass black holes through stellar collisions in dense star clusters
Intermediate-mass black holes (IMBHs, $10^2 < m_{\rm BH}/\mathrm{M}_{\odot} < 10^5$) are elusive objects bridging the gap between stellar-mass and supermassive black holes, whose origin remains…Revisiting the Missing Baryon Problem: Baryon Redistribution Across Halo Evolution
The baryon fraction provides a fundamental diagnostic of baryonic matter distribution within dark matter halos and the baryon cycle.H 0557$-$385: A Candidate Missing Link Between Radio-Quiet Seyferts and Young Radio Galaxies
The Seyfert 1 galaxy H 0557$-$385 (z = 0.034) has long been classified as radio-quiet on the basis of its radio-to-optical flux ratio, yet its radio properties are physically inconsistent with this…X-rays from Low-mass Active Galaxies in the Galaxy And Mass Assembly (GAMA) Survey
We present new Chandra observations of seven broad-line AGNs in low-mass galaxies ($M_\star < 5 \times 10^9\,M_\odot$) selected from the GAMA sample of Salehirad et al. (2022).He I $λ$10830 Resonant Scattering in M17: Toward a Diagnostic of Optical Depth and Gas Kinematics
The lower level of the He I $λ$10830 transition is metastable and therefore well populated.Estimating LuSEE-Night's Sensitivity to Cα Radio Recombination Lines
Carbon radio recombination lines (CRRLs) arising from the cold neutral medium (CNM) of the interstellar medium are potential foregrounds in the 1-50 MHz band that LuSEE-Night will observe from the…Evidence for strong shocks in the ISM of small radio sources
Radio jets deposit energy into the interstellar medium of their host galaxies, and while a jet is still confined within the host it is expected to drive shocks through the gas.Interstellar and intergalactic medium in the ultraviolet band
This article presents an overview of key scientific challenges in the astrophysics and astrochemistry of the interstellar and intergalactic media.Mass-Metallicity Relation of the Fossil Disk in Six Nearby Galaxies using JWST RGB Stars
We here present the first ever mass-metallicity relation (MZR) of fossil disk populations using the resolved stellar populations in the James Webb Space Telescope Near-Infrared Camera (JWST/NIRCam)…Dynamically defined bulges reveal that early-type galaxies with compact bulges host more massive black holes
We revisit the $M_{BH}-M_{bulge}$ relation for early-type galaxies by introducing a uniform bulge defined by dynamical decomposition.Physically Motivated Stellar Populations for Galaxies at Cosmic Dawn with a Temperature-Dependent IMF
The first few years of James Webb Space Telescope observations have identified previously undetected galaxies at $z>12$ and provided new constraints on galaxies at $z>8$.An Unusually Clumpy Ultra-Diffuse Galaxy in the Coma Cluster: A Missing Link for Globular Cluster Formation?
We present a study of Coma-B122, an unusually clumpy star-forming ultra-diffuse galaxy (UDG) in the Coma cluster outskirts, using deep Keck Cosmic Web Imager integral-field spectroscopy and Subaru…