Galaxies & Cosmology
Galaxy formation, evolution, structure, and cosmological simulations.
astro-ph.GA · 340 papersThe Galaxy Luminosity Functions in ASTRID: Predictions for LSST
This paper uses the ASTRID simulation to predict galaxy luminosity functions and photometric catalogs for the LSST survey, validated with observed data.
From DES to KiDS: Domain adaptation for cross-survey detection of low-surface-brightness galaxies
Leveraging domain adaptation and deep learning, this paper identifies over 20,000 low-surface-brightness galaxies (LSBGs) across surveys, crucial for future catalogs.
Photometric metallicity of Galactic RR Lyrae stars in the Gaia DR3 era
A new, highly reliable G-band relationship is presented for determining the metallicity of Galactic RR Lyrae stars using Gaia DR3 data.
A New PSF Deconvolution Algorithm: Simultaneous Spatial Resolution Enhancement and Point Source Removal for Morphological Analysis of AGN Host Galaxies
A new PSF deconvolution algorithm simultaneously enhances host galaxy resolution and removes bright AGN point sources for morphological analysis.
Tracing the sulfur depletion in starless and pre-stellar cores
This study investigates sulfur depletion in starless and pre-stellar cores, finding that local environmental conditions, not a single evolutionary parameter, drive observed sulfur molecule variations.
COOL-LAMPS IX: A Rare Duo of Quasars Each Lensed by a Single Massive Galaxy Cluster
Astronomers discovered COOLJ1153+0755, a rare system featuring two distinct quasars each quadruply lensed by a single massive galaxy cluster.
First Light And Reionization Epoch Simulations (FLARES) XXI: The UV Indices of Galaxies in the Early Universe
This study combines simulations and spectral modeling to evaluate UV indices as stellar metallicity tracers in early universe galaxies, finding 1719Å most reliable.
The impact of flickering variability and magnetisation on the dynamics, stability and morphology of radio-loud AGN jets
This paper uses simulations to show how magnetization and flickering variability significantly influence the morphology and stability of radio-loud AGN jets.
Geodesics Structure and Thermodynamic Properties of Gaussian Black Hole in Quadratic Ricci Scaler Gravity
Compares geodesic and thermodynamic properties of Gaussian Black Holes in modified and Einstein gravities, finding modified gravity more consistent.
Survival of Molecular Complexity under Recent Supernova Feedback: Detection of Hot Cores in RX J1713.7-3946
Hot cores detected within a supernova remnant show surprising chemical resilience, with complex organic molecules surviving the harsh environment.
Comparative analysis of missing data imputation methods for CSST survey: Impact on photometric redshift estimation performance
Evaluates imputation methods to improve photometric redshift accuracy amid missing data in CSST surveys.
The Accretion Process on Protostars
This paper reviews recent advancements in understanding protostellar accretion, integrating observational data with numerical models to provide a comprehensive assessment.
The Gravitational Spectral Radio Forest: A Signature of Primordial Black Holes
This paper proposes using interstellar hydrogen as a quantum sensor to detect asteroid-mass Primordial Black Holes via a novel gravitational spectral radio forest.
A Spatially Resolved HI Survey of Seyfert Galaxies: the Role of AGN Feedback in Shaping Atomic Gas Reservoirs
This study uses GMRT to survey Seyfert galaxies, finding AGN feedback doesn't disrupt global HI reservoirs but may inject turbulence internally.
Forbidden Formation Histories: The Binary Black Hole Merger Rate Disfavors Long Delay Times
This paper shows that observed binary black hole merger rates disfavor long delay times, revealing 'forbidden' formation histories and constraining binary evolution models.
The Metallicity Distribution of the Ultra-Faint Dwarf Galaxy Segue 1
New spectroscopic data for Segue 1, an ultra-faint dwarf galaxy, reveals its metallicity distribution, supporting a short, continuous star formation history.
The Panchromatic Hubble Andromeda Southern Treasury (PHAST). II. The Spatially Resolved Recent Star Formation History in M31
PHAST uses HST data to map M31's recent star formation history, revealing a global decline and issues with FUV-based SFR tracers.
SIMPLIFI -- Study of Interstellar Magnetic Polarization: a Legacy Investigation of Filaments. I. Magnetically-Guided Accretion onto the DR21 Ridge
SIMPLIFI reveals magnetic fields guide accretion in DR21, explaining star formation and observed velocities in molecular cloud filaments.
The flare and spiral structure of the Milky Way's disc as traced by young giant stars
This paper maps the Milky Way's disc structure and spiral arms using young giant stars, revealing its flare and extended arm segments.
One Merge to Rule Them All: From Galaxy Interactions to Black Hole Mergers Using Horizon-AGN
Using Horizon-AGN, this study links galaxy mergers to black hole coalescences, revealing their co-evolution with stellar mass and redshift.
📬 Weekly AI Paper Digest
Get the top 10 AI/ML arXiv papers from the week — summarized, scored, and delivered to your inbox every Monday.