astro-ph.GA
55.9k resultsThe Radial Acceleration Relation in Galaxies and Clusters from a Two-Component, Virial-Motivated Framework
Christine C. Dantas, Andre L. B. Ribeiro, Hugo V. Capelato
Recovering pattern speeds of simulated face-on barred galaxies via Schwarzschild modelling
Iliya S. Tikhonenko, Jens Thomas, Roberto P. Saglia
ROLLIN': Rotating globular cluster simulations II. The complex morphology of globular clusters driven by multi-scale dynamics
Arn Marklund, Paolo Bianchini, Anna Lisa Varri +2
The TOP-SCOPE Survey of Planck Galactic Cold Clumps: Molecular gas properties
Yuebin Yang, Jarken Esimbek, Tie Liu +11
On an empirical method to build near-equilibrium axisymmetric and triaxial galaxy models
Pierfrancesco Di Cintio, Alessandro Alberto Trani, Valentina Cesare
Stellar mergers and chemical element mixing: implications for the metamorphic stellar evolution in AGN disks
Yanlong Shi, Xiaoshan Huang, Douglas N. C. Lin +1
Vortex State of Ultralight Dark Matter and the Fornax Timing Problem
V. Gorkavenko, O. Barabash, T. Gorkavenko +4
A Review of How Supermassive Black Hole Binaries Can Be Detected and Characterized through Gravitational Lensing of Background Stars
Mu'allim Yakubu
Searching for Population III stars with line intensity mapping cross-correlations
Sahil Hegde, Guochao Sun, Julian B. Muñoz +1
Fishing for Jellyfish Galaxies: Exploring ram-pressure stripping with crowd science
C. Bellhouse, Y. L. Jaffé, J. P. Crossett +13
SDSS-V Local Volume Mapper (LVM): The Integrated Light and Internal Rotation of Omega Centauri
Maximilian Häberle, Dmitry Bizyaev, Alina Boecker +34
Determining Total Infrared Luminosities from Submm Measurements of High Redshift Galaxies
Maria Emilia De Rossi, George H. Rieke, Christina C. Williams +6
Misaligned or chaotic? A strong break of axial symmetry in the local LRD J1025 revealed with VLT/FORS2 spectropolarimetry
Francesco D'Eugenio, Gabriele Pezzulli, Roberto Maiolino +18
Quiescent Host Galaxies of Extended Quasars Revealed by Spectrophotometric Decomposition
Shengxiu Sun, Linhua Jiang, Zhiwei Pan +27
Changing-Look AGNs from DESI. VI. Host Galaxies
Shengxiu Sun, Linhua Jiang, Wei-Jian Guo +2
EWOCS-VIII: Internal kinematics and expansion of Westerlund 1 from VVVX proper motions
C. Ordenes-Huanca, A. Bayo, M. Guarcello +12
Angular Momentum Evolution from Core to Disk Scales in the Early Phase of Star Formation: Constraints from HH 212, HH 211, and B335
Chin-Fei Lee
The paper examines how specific angular momentum changes from large core scales down to disk scales in three young protostars, showing that an inside‑out collapse model with modest…
The eROSITA X-ray luminosity function of active galactic nuclei
W. Roster, J. Buchner, M. Salvato +23
The paper measures the soft X‑ray luminosity function of active galactic nuclei using eROSITA data across a wide luminosity and redshift range, introduces a redshift‑dependent brok…
A search for HI absorption in distant star-forming galaxies with ASKAP-FLASH - II. Direct observations and stacking of 21 cm line
Sophie L. Eden, Elaine M. Sadler, Kevin A. Pimbblet +5
The authors use ASKAP's FLASH survey to search for HI 21 cm absorption in star‑forming and radio galaxies at 0.4 < z < 1, reporting a new detection and performing stacking analyses…
Characterizing the disruption of Böotes III: a missing link in the Galactic halo?
Jaclyn Jensen, Daniel A. Boyea, Alan W. McConnachie +14
The authors investigate whether the Boötes III dwarf galaxy is the source of the Styx stellar stream by searching for tidal debris with Gaia data, new CaHK imaging, and matched‑fil…
Invariant manifolds in barred galaxy simulations. III. Self-regulated weakening of strong spiral arms
T. Soler-Terricabras, S. Roca-Fà brega, M. Romero-Gómez
The paper investigates why strong spiral arms in barred galaxies weaken, showing that self‑gravitating spirals shift the galaxy’s Lagrangian points, disrupting invariant‑manifold d…
JWST's Constraints on the Substellar IMF in NGC 2024
K. L. Luhman
The paper uses JWST NIRCam imaging and NIRSpec spectroscopy to identify brown dwarfs in the young cluster NGC 2024 and assesses whether the substellar initial mass function shows a…
Bipolar HII regions Produced by Cloud-Cloud Collisions
Theotokis Georgatos, Anthony P. Whitworth, Richard Wünsch +1
The authors run numerical simulations of head‑on collisions between 500 M⊙ clouds and show that the resulting shock‑compressed layer can produce bipolar H II regions, suggesting ma…
Galactic HII regions in LAMOST Medium-Resolution Spectroscopic Survey of Nebulae
Yunning Zhao, Wei Zhang, Lin Ma +10
The paper uses LAMOST medium‑resolution spectra to confirm 255 Galactic H II regions in the outer Milky Way and measures their electron temperature, density, and oxygen abundance t…