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 44
Disentangling the assembly of the central and diffuse stellar components in galaxy clusters through dynamical friction and tidal stripping
In galaxy clusters, it is common to conceptually distinguish the central, brightest cluster galaxy (BCG) from the more diffuse intracluster light (ICL).Forming Molecular Hydrogen in a Galaxy Halo Through Star Formation Wind Interactions
Molecular hydrogen (H$_2$) is the key ingredient for star formation in galaxies.Unveiling the Origins of the Molecular Gas Reservoirs in Recently Quenched Massive Galaxies
Observations of quenched galaxies across cosmic time have revealed systems containing substantial molecular gas reservoirs, challenging the traditional picture of gas-poor, red and dead galaxies.EMIR confirmation of the high-z Lyα blob SHARDS20018464
A spectroscopic follow-up of the Ly$α$ blob SHARDS20018464 was performed using the infrared spectrograph EMIR (Espectrógrafo Multiobjeto Infra-Rojo) at the 10.4 m GTC telescope, equipped with its…Armillary: A Label-Free Coordinate System for Stellar Spectra
A stellar spectrum is determined by a few parameters, so a set of spectra lies on a low-dimensional manifold with those parameters as its coordinates.Probing departures from Schwarzschild geometry with the S301 star and kilometre-baseline interferometry
The S301 star reaches a pericentre one tenth that of S2, opening a new regime for probing black-hole spin and departures from Schwarzschild.First Direct Identification of a Multi-Star Microlens System Hosting a Planet
Nearly 25 years have passed since gravitational microlensing delivered its first exoplanet discoveries.Cracking open the "dragon egg": ALMA 1.3mm observations of a compact, young high-mass core candidate at 30mas resolution
Massive prestellar cores are a central assumption of core-accretion models of high-mass star formation, yet convincing observational examples remain rare.And Then There WEre Baryons (ATWEB): The Baryon Budget of the Universe in Halos and the IGM over 13 Billion Years of Cosmic Time
Observations of the local Universe show that, except in the most massive galaxy clusters, the baryon fraction within halos falls below the cosmic mean.Uncovering the Physical Origins of Black Holes in the Milky Way for Astronomical Surveys
The observational landscape of stellar-mass black holes (BHs) in the Milky Way is expanding beyond X-ray binaries, with Gaia DR4 and Roman expected to open new windows onto BH populations.DIGging into HII regions: the role of ionizing photon leakage and spectral hardening in coupling HII regions and diffuse ionized gas
The optical emission-line ratios of star-forming galaxies are broadly understood in the framework of photoionization, yet some systematic trends remain unexplained.Molecular hydrogen formation on dust: The impact of gas-dust drift on formation efficiency
Molecular hydrogen is predominantly formed on dust-grain surfaces in the interstellar medium, where relative gas-dust motion can arise in dynamically active environments.Spectroscopic Confirmation of the Milky Way Satellites Boötes V and Leo Minor I and the LMC Satellite DELVE 2: Three Small Ultra-Faint Dwarf Galaxies
We present the first multi-object spectroscopy of Boötes V, Leo Minor I, and DELVE 2 -- three small (20 pc $\le r_{1/2}\le$ 26 pc), ultra-faint ($-3.2\le M_V\le-2.1$) stellar systems in the outer…Hierarchical Black Hole Mergers at High Redshift: Predictions for LISA and LGWA from SEEDZ
We investigate the hierarchical assembly of black holes (BHs) in the early Universe using the next-generation SEEDZ cosmological zoom-in simulations.Multiple H I 21-cm absorbers towards blazar PKS 1158+007
We report an interesting line of sight towards the blazar PKS 1158+007 (J1201+0028) ($z_{\rm em}$ = 1.369), revealing the rare detection of two intervening HI 21-cm absorption systems within a…Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) VII. First interstellar detection of fully deuterated methanol
There have been no robust identifications of fully deuterated methanol, CD3OD, in the interstellar medium (ISM) to date.A spatially resolved view of Fast Radio Burst host metallicities with Integral-field Spectroscopy
Magnetar sources are the leading theory for Fast Radio Burst (FRB) progenitors.The universal thickness of mid-infrared bubbles
Several hundred ring-like structures seen at $8μ$m in the Spitzer GLIMPSE surveys share a uniform morphology: the shell thickness $ΔR$ is a nearly constant fraction of the outer radius $R$…Occam's Razor and a Three-Family Ultralight Fermionic Dark Matter Model
Inspired by the three generations in the Standard Model, we propose that dark matter particles are simply three non-interacting ultralight fermions.BRAHMa: Bar Recognition And Hatching using Machine learning -- a framework for oriented bounding box detection of galactic bars
Galactic bars are fundamental components in studies of dark matter, galaxy evolution, and secular dynamics.