Showing 2024 · astro-ph.GAShow all

18 papers · 2 filters

astro-ph.GA2024★ 5 cited

Behind the dust veil: A panchromatic view of an optically dark galaxy at z=4.82

Nikolaj B. Sillassen, Shuowen Jin, Georgios E. Magdis +30

Optically dark dusty star-forming galaxies (DSFGs) play an essential role in massive galaxy formation at early cosmic time, however their nature remains elusive. Here we present a…

astro-ph.GA2024★ 9 cited

Learning the Universe: Cosmological and Astrophysical Parameter Inference with Galaxy Luminosity Functions and Colours

Christopher C. Lovell, Tjitske Starkenburg, Matthew Ho +9

We perform the first direct cosmological and astrophysical parameter inference from the combination of galaxy luminosity functions and colours using a simulation based inference ap…

astro-ph.GA2024★ 2 cited

A Search for 3-mm Molecular Absorption Line Transitions in the Magellanic Stream

Lucille Steffes, Daniel R. Rybarczyk, Snežana Stanimirović +14

The Magellanic Stream, a tidal tail of diffuse gas falling onto the Milky Way, formed by interactions between the Small and Large Magellanic Clouds, is primarily composed of neutra…

astro-ph.GA2024★ 19 cited

Quantifying Baryonic Feedback on Warm-Hot Circumgalactic Medium in CAMELS Simulations

Isabel Medlock, Chloe Neufeld, Daisuke Nagai +6

The baryonic physics shaping galaxy formation and evolution are complex, spanning a vast range of scales and making them challenging to model. Cosmological simulations rely on subg…

astro-ph.GA2024★ 1 cited

Prevention is better than cure? Feedback from high specific energy winds in cosmological simulations with Arkenstone

Jake S. Bennett, Matthew C. Smith, Drummond B. Fielding +6

We deploy the new Arkenstone galactic wind model in cosmological simulations for the first time, allowing us to robustly resolve the evolution and impact of high specific energy wi…

astro-ph.GA2024★ 8 cited

The GALAH Survey: Stellar parameters and abundances for 800,000 Gaia RVS spectra using GALAH DR4 and The Cannon

Pradosh Barun Das, Daniel B. Zucker, Gayandhi M. De Silva +15

Analysing stellar parameters and abundances from nearly one million Gaia Data Release 3 (DR3) Radial Velocity Spectrometer (RVS) spectra poses challenges due to the limited spectra…

astro-ph.GA2024★ 8 cited

The JWST Emission Line Survey (JELS): Extending rest-optical narrow-band emission line selection into the Epoch of Reionization

K. J. Duncan, D. J. McLeod, P. N. Best +20

We present the JWST Emission Line Survey (JELS), a JWST imaging programme exploiting the wavelength coverage and sensitivity of NIRCam to extend narrow-band rest-optical emission l…

astro-ph.GA2024★ 4 cited

Evolution of Star Cluster Within Galaxy using Self-consistent Hybrid Hydro/N-body Simulation

Yongseok Jo, Seoyoung Kim, Ji-hoon Kim +1

We introduce a GPU-accelerated hybrid hydro/N-body code (Enzo-N) designed to address the challenges of concurrently simulating star clusters and their parent galaxies. This task ha…

astro-ph.GA2024★ 15 cited

The MeerKAT Fornax Survey. III. Ram-pressure stripping of the tidally interacting galaxy NGC 1427A in the Fornax cluster

P. Serra, T. A. Oosterloo, P. Kamphuis +16

We present MeerKAT Fornax Survey HI observations of NGC 1427A, a blue irregular galaxy with a stellar mass of 2e+9 Msun located near the centre of the Fornax galaxy cluster. Thanks…

astro-ph.GA2024★ 18 cited

Dynamics around supermassive black holes: Extreme mass-ratio inspirals as gravitational-wave sources

Barak Rom, Itai Linial, Karamveer Kaur +1

Supermassive black holes and their surrounding dense stellar environments nourish a variety of astrophysical phenomena. We focus on the distribution of stellar-mass black holes aro…

astro-ph.GA2024★ 9 cited

Gravothermal Catastrophe in Resonant Self-interacting Dark Matter Models

Vinh Tran, Daniel Gilman, Mark Vogelsberger +3

We investigate a self-interacting dark matter (SIDM) model featuring a velocity-dependent cross section with an order-of-magnitude resonant enhancement of the cross section at $\si…

astro-ph.GA2024

Stochastic prior for non-parametric star-formation histories

Jenny T. Wan, Sandro Tacchella, Benjamin D. Johnson +3

The amount of power contained in the variations in galaxy star-formation histories (SFHs) across a range of timescales encodes key information about the physical processes which mo…

astro-ph.GA2024★ 12 cited

The ALPINE-ALMA [CII] Survey: Dust emission effective radius up to 3 kpc in the Early Universe

F. Pozzi, F. Calura, Q. D'Amato +24

Measurements of the size of dust continuum emission are an important tool for constraining the spatial extent of star formation and hence the build-up of stellar mass. Compact dust…

astro-ph.GA2024★ 9 cited

Galactic disc heating by density granulation in fuzzy dark matter simulations

Hsun-Yeong Yang, Barry T. Chiang, Guan-Ming Su +3

Fuzzy dark matter (FDM), an attractive dark matter candidate comprising ultralight bosons (axions) with a particle mass eV, is motivated by the small-scale challe…

astro-ph.GA2024★ 28 cited

Violent starbursts and quiescence induced by FUV radiation feedback in metal-poor galaxies at high-redshift

Kazuyuki Sugimura, Massimo Ricotti, Jongwon Park +2

JWST observations of galaxies at suggest that they are more luminous and clumpier than predicted by most models, prompting several proposals on the physics of star for…

astro-ph.GA2024★ 8 cited

High-Resolution X-Ray Spectroscopy of Interstellar Iron Toward Cygnus X-1 and GX 339-4

Lia Corrales, Eric V. Gotthelf, Efrain Gatuzz +7

We present a high-resolution spectral study of Fe L-shell extinction by the diffuse interstellar medium (ISM) in the direction of the X-ray binaries Cygnus X-1 and GX 339-4, using…

astro-ph.GA2024★ 16 cited

Radial phase spirals in the Solar neighbourhood

Jason A. S. Hunt, Adrian M. Price-Whelan, Kathryn V. Johnston +4

The second data release of ESA's mission revealed numerous signatures of disequilibrium in the Milky Way's disc. These signatures are seen in the planar kinematics of stars,…

astro-ph.GA2024★ 25 cited

Stellar Populations With Optical Spectra: Deep Learning vs. Popular Spectrum Fitting Codes

Joanna Woo, Dan Walters, Finn Archinuk +4

We compare the performance of several popular spectrum fitting codes (Firefly, starlight, pyPipe3D and pPXF), and a deep-learning convolutional neural network (StarNet), in recover…