Galaxies & Cosmology
Galaxy formation, evolution, structure, and cosmological simulations.
astro-ph.GA · 340 papersUnveiling Hidden Lyman Alpha Emitters in the DESI DR1 Data
A CNN-based method automatically detects 19,685 hidden Lyman Alpha Emitters in DESI DR1 data with high purity and completeness.
Photometric determination of the mass accretion rates of pre-main sequence stars. IX. Recent star formation in the periphery of NGC 346
Characterizing PMS stars and accretion rates in NGC 346's periphery, this study shows massive star UV radiation erodes circumstellar discs.
Precessing Black Hole Jets and Galactic Fossils
This paper proposes a unified model where a precessing jet from SgrA* explains both the Galactic Centre gamma-ray excess and the Fermi/eROSITA bubbles.
A tool of Hierarchical cOre ideNtification and Kinematic property AssIgnment (HONKAI) for Dense Cores
HONKAI is a new tool for identifying hierarchical structures in IRDCs, revealing that most dense cores are self-gravitating but few are poised for massive star formation.
A hierarchical Bayesian pipeline for soliton-plus-NFW inference on SPARC rotation curves: diagnostics and prior-boundary behaviour
A new hierarchical Bayesian pipeline analyzes SPARC galaxy rotation curves to test fuzzy dark matter models, finding no clear soliton component.
Exploring the stellar streams and satellites around the giant low surface brightness galaxy Malin 1
This paper explores the orbital dynamics of satellites and stellar streams around the giant low surface brightness galaxy Malin 1 to understand its formation and evolution.
The Extended Plane of the Local Supercluster
This paper updates evidence showing luminous galaxies, radio galaxies, and clusters correlate with the Local Supercluster plane up to 400Mpc.
Tracing Radio AGN-Driven Quenching in Post-Starburst Galaxies at Cosmic Noon
Researchers found that cosmic noon post-starburst galaxies show evidence of weak radio AGN, suggesting a short duty cycle for quenching.
Survey Footprint Explorer: A Browser-Based Interactive Tool for Visualizing and Cross-Matching Astronomical Survey Footprints
Survey Footprint Explorer is a browser-based tool for visualizing and comparing sky footprints of 13 major astronomical imaging surveys.
The $R$-Process Alliance: The $R$-Process Enhancement of Stars from Chemodynamically Tagged Groups in the Milky Way Halo
This study details heavy element abundances in three metal-poor stars, confirming their r-process enhancement and linking them to ancient dwarf galaxy accretion.
The Impact of Cosmic Variance and Satellites on JWST Clustering Measurements at Redshift around 6
A framework for JWST clustering at z~6 reveals Poisson errors severely underestimate true uncertainties in quasar and galaxy halo masses due to cosmic variance.
A correlation predicting galaxies without dark matter
This paper identifies a baryonic correlation to predict galaxies lacking dark matter, suggesting they form via standard processes.
Characterizing Pulsar Distances Using HI Kinematics
This paper derives kinematic distances for 66 pulsars using a state-of-the-art Galactic rotation curve, showing consistency with other methods.
Joint probabilistic inference of galaxy redshifts and rest-frame spectra from photometric fluxes with latent diffusion
This paper presents a latent diffusion model for joint probabilistic inference of galaxy redshifts and rest-frame spectra from photometric fluxes.
Co-evolution of the Milky Way high- and low-α sequences with chemical evolution models
A revised chemical evolution model explains the Milky Way's high- and low-α stellar sequences, their co-evolution, and old low-α stars via pre-enriched gas infall.
HI absorption in MHONGOOSE -- Spin temperatures and cold neutral medium in nearby disk galaxies
This paper extends HI emission-absorption studies to nearby disk galaxies beyond the Local Group, analyzing spin temperatures and cold neutral medium.
Quantum and Structural Effects Captured via a Statistical Method: the SACM Applied to HCN and HNC Colliding with CO
The Statistical Adiabatic Channel Model efficiently calculates low-temperature molecular collision rates, overcoming limitations of quantum and quasi-classical methods.
Uncertainty in Physics and AI: Taxonomy, Quantification, and Validation
This paper offers a unified taxonomy, quantification, and validation framework for uncertainty in ML for physics applications.
CosmoDRAGoN III: Shaping the Afterlife -- How Progenitors and Environments Sculpt Radio Galaxy Remnants
This paper uses 3D simulations to show how progenitor power and environment sculpt radio galaxy remnants, affecting their morphology, spectral evolution, and detectability.
Stardust Galaxies at z>9: A Dust-Origin Transition Behind the Excess of UV-Bright Galaxies
A new framework suggests that low-opacity, SNe-produced dust at z>9 explains JWST's observations of UV-bright galaxies and low dust attenuation.
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