Astrophysics & Cosmology

Research on galaxies, dark matter, black holes, cosmic structure, and the large-scale universe from arXiv's astro-ph categories.

Sample of the collection (24 of 24 items)

• Tracing the sulfur depletion in starless and pre-stellar cores L. Schöller et al. Sulfur is one of the most abundant elements in the Universe, yet the sulfur budget inferred from the observed sulfur-bearing molecules…
• Probing nonlinear structure formation beyond $Λ$CDM with the LSS bootstrap: a joint power spectrum and bispectrum analysis Giorgia Biselli et al. We present the first MCMC-derived constraints on the parameters of the Large Scale Structure (LSS) bootstrap, a model-independent…
• The impact of flickering variability and magnetisation on the dynamics, stability and morphology of radio-loud AGN jets Emma L. Elley et al. The physics governing the morphology of radio-loud AGN jets is not fully understood. We investigate how magnetization, flickering jet…
• UNIONS-3500 Weak Lensing: III. 2D Cosmological Constraints in Configuration Space L. W. K. Goh et al. We present the first cosmological constraints from the cosmic shear analysis of the UNIONS-3500 weak lensing galaxy catalogue in…
• Machine-learning applications for weak-lensing cosmology Masato Shirasaki This article reviews recent advances in the application of machine learning to weak-lensing cosmology. Weak gravitational lensing…
• Forbidden Formation Histories: The Binary Black Hole Merger Rate Disfavors Long Delay Times Aryanna Schiebelbein-Zwack et al. The redshift evolution of the binary black hole (BBH) merger rate can be expressed as the convolution of the progenitor formation rate…
• The Accretion Process on Protostars Eleonora Fiorellino et al. The process of mass accretion onto Young Stellar Objects (YSOs) plays a fundamental role in determining the final stellar mass and…
• The $R$-Process Alliance: The $R$-Process Enhancement of Stars from Chemodynamically Tagged Groups in the Milky Way Halo Jessica Merritt Agnos et al. As part of the ongoing work of the $R$-Process Alliance (RPA), detailed abundance measurements of 29 heavy elements in three metal-poor…
• A study on Dusty Plasma Physics and the examination of Jeans Criteria for the Milky Way Tanay Gupta et al. Since the early 1990s, there has been significant interest in the physics of dusty plasmas, which has now become a new discipline in…
• FLAMINGO: The thermal history of the Universe from tSZ effect cross-correlations and its dependencies on cosmology and baryon physics Jaime Salcido et al. The cross-correlation between tracers of large-scale structure, such as galaxies or quasars, and the thermal Sunyaev-Zel'dovich (tSZ)…
• The Impact of Cosmic Variance and Satellites on JWST Clustering Measurements at Redshift around 6 Jiamu Huang et al. We present a framework for inferring the dark matter halo masses of quasars and [O III]-emitting galaxies from JWST/NIRCam Wide Field…
• Mitigating residual foregrounds and systematic errors in SKA1-Low AA* EoR observations via Bayesian Gaussian Process Regression Samit Kumar Pal et al. The redshifted 21\,cm line is an emerging tool in observational cosmology that can serve as a direct probe of the intergalactic medium…
• Co-evolution of the Milky Way high- and low-α sequences with chemical evolution models V. Grisoni et al. Observational data have revealed a clear dichotomy in the [α/Fe] vs. [Fe/H] diagram of the Milky Way thick and thin disc stars. Many…
• Spectroscopic Bolometric Corrections and Empirical Zero-point Constants of \textit{Gaia} Magnitudes, $G$, $G_{\rm BP}$, and $G_{\rm RP}$, from \textit{Gaia} XP Spectra Zeki Eker et al. The International Astronomical Union 2015 Resolution B2 (IAU2015GARB2) has resolved the long-standing problem of zero-point constants…
• Application of Machine Learning to 21 cm Cosmology Hayato Shimabukuro This chapter reviews how machine learning (ML) can be used to extract astrophysical and cosmological information from redshifted 21 cm…
• How to count clustered galaxies Yunting Wang et al. Obtaining robust galaxy number counts is crucial for understanding galaxy evolution, and submillimetre counts in particular have proven…
• X-ray luminous late-type giants: an overlooked population contributing to the Galactic ridge iron line emission Tong Bao et al. The origin of the highly ionized iron emission (Fe XXV at $6.7\,\mathrm{keV}$) characterizing the Galactic ridge X-ray emission (GRXE)…
• Specific Star Formation Rate Enhancement across the Galaxy Merger Sequence: Insights from Citizen Science Classifications Jacob Lee et al. We present an analysis of specific star formation rates (sSFR) across the galaxy merger sequence using visual classifications from the…
• Potamides: Mapping Dark Matter Halo Shapes from Stellar Stream Tracks in the Local Universe Sirui Wu et al. Stellar streams trace the gravitational potential of their host galaxies and offer a direct probe of dark matter halo geometry.…
• Empirical estimates of how massive galaxies can be in ΛCDM Miguel Enríquez-Vargas et al. Using Extreme Value Statistics applied to the observed galaxy stellar mass and the UV luminosity functions, we empirically estimate…
• Anisotropic Thermal Conduction as a Driver of Jet Collimation and Magnetic Field Amplification on Cold Fronts Nana Matsuno et al. Galaxy clusters contain a hot, diffuse, and weakly magnetized plasma known as the intracluster medium (ICM). In this environment, how…
• First Interstellar Detection of Methyl Carbamate: A New Observational Anchor for Glycine Chemistry Chunguo Duan et al. Glycine-the simplest amino acid-has remained undetected in the interstellar medium despite decades of sensitive searches, motivating…
• Complex organic molecules and cosmic ray ionisation rate towards the massive protostar Cepheus A HW2 Emma W. Nielsen et al. Cosmic rays (CRs) are important drivers for molecular chemistry in star-forming regions, and laboratory experiments have shown that CRs…
• A statistical look on kinematic planes of satellite galaxies II: The physics behind their early formation in TNG50 MW/M31-like galaxies Matías Gámez-Marín et al. We investigate the physical origin of kinematically persistent planes (KPPs) of satellite galaxies in a sample of 190 Milky Way…

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