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.
Get the few papers worth your time in Astrophysics of Galaxies every morning.
Follow Astrophysics of Galaxies and ReadSearch reads its new papers each day, then brings you the few worth reading, each with its key finding in a sentence.
Newest papers, page 57
Evidence for the Typhon Stellar Stream as the Remnant of a Recently-disrupted Dwarf Galaxy
In the hierarchical model of galaxy formation, the Milky Way's stellar halo assembles through the successive accretion of dwarf galaxies.Quasinormal-mode redshifts of black holes in galactic halos with radial pressures
We investigate the black-hole quasinormal mode redshifts induced by a galactic dark-matter halo with nonvanishing radial pressure.Distance Estimation using Globular Clusters and Ultra-Compact Dwarfs
The tight scaling relation between absolute magnitude and internal velocity dispersion ($σ$) for globular clusters (GCs), referred to as the GC velocity dispersion (GCVD) relation, has shown great…Ubiquitous nuclear disks and bars embedded in massive galaxies in the cosmic morning
The morphology of the central regions of high-redshift galaxies remains relatively unexplored, while recent case studies suggest that giant disks can emerge without first developing a prominent…On the rates of binary star collisions around hypermassive black holes
Observations of the Milky Way show that galaxies have binary stars in their centres.Multi-Band Optical Variability Characteristics of the $γ$-ray emitting blazar 1ES 0647+250 during its 2020 flare
We present a multi-band optical variability study of the $γ$-ray emitting high-synchrotron-peaked blazar 1ES~0647+250 during its enhanced optical activity in 2020.The Neutral Hydrogen Gas Content of Star-forming and Quiescent S0 Galaxies
Lenticular (or S0) galaxies that remain actively star-forming (SFS0s) are a unique transition population among galaxies.Detection of metal absorption lines in quasar spectra: a neural network approach using U-Net
Current and future large spectroscopic surveys are significantly enhancing the volume and resolution of quasar spectra that are observed, which requires the creation of efficient and precise…JWST evidence for a sharp "Cosmic Daybreak" at z = 15
Luminous young galaxies have been uncovered with relative ease by JWST, extending to z=14.5, so it is puzzling that deeper spectroscopy of fainter candidates now finds only interlopers.Investigating the ionization mechanisms powering the extreme emission lines in metal-poor galaxies
Extreme emission metal-poor galaxies (EEMPGs) are excellent local laboratories for understanding the extreme physical conditions and ionizing radiation fields in the early Universe.The Lumina Project: Morphology of Ionized Bubbles and Neutral Islands
The Epoch of Reionization is characterized by the nucleation, expansion, and percolation of ionized bubbles in the intergalactic medium.Interstellar extinction of classical Cepheids from neighboring stars I. Methodology and application to 16 Galactic Cepheids
Galactic Cepheid variable stars are fundamental calibrators of the cosmic distance scale through their Period-Luminosity (PL) relation.A Search For Stellar-mass Black Holes Via Astrometric Microlensing II: 2012-2015 Keck Candidates
The Milky Way is expected to host $\sim$10$^8$ stellar-mass black holes with an uncertain binary fraction.Differentiable astrophysics at scale: solving and differentiating ODE ensembles on the GPU
Astronomers increasingly fit their models with gradient-based methods, such as Hamiltonian Monte Carlo, which need the derivatives of the model with respect to its parameters.A sub-100 pc view at z~5 of a Multiply-Imaged Massive Quiescent Galaxy
Recent James Webb Space Telescope spectroscopic surveys reveal an abundance of rapidly assembled early galaxies in the first billion years.AstroGenesis: A Domain-Specific Multi-Agent AI for Astrophysical Research
Modern astrophysical research requires the integration of rapidly expanding scientific literature, heterogeneous observational data, and increasingly complex physical models.Probing the Metallicity Dependence of Fast Radio Burst Progenitors with CHIME/FRB Outrigger Dwarf Host Galaxies
Using the fast radio bursts (FRBs) localized with the CHIME/FRB Outriggers between February and October 2025, we conduct a systematic search for dwarf host galaxies.The quest for high-redshift radio galaxies II. Discovery of the most powerful known radio galaxy at z=4.946
As part of our quest for high-redshift radio galaxies (HzRGs), we present the results obtained from optical spectroscopy leading to the confirmation of one HzRG candidate selected using the Lyman…Mapping the Milky Way in Six Dimensions: A contiguous, homogenised, phase-space catalogue of \textit{Gaia} DR3 tracers up to 250 kpc
We present a comprehensive, homogenised catalogue of $32{,}552{,}876$ stellar sources with full 6D phase-space information, spanning Galactocentric distances from the inner galaxy ($\gtrsim 5$\,kpc)…Triggering star formation by free-floating planets
Recently, a population of free-floating planets has been discovered in the Galaxy.