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19912026
Showing 2024 · astro-ph.GAShow all

9 papers · 2 filters

astro-ph.GA2024★ 2 cited

Kilogauss magnetic field and jet dynamics in the quasar NRAO 530

Mikhail Lisakov, Svetlana Jorstad, Maciek Wielgus +12

The advancement of the Event Horizon Telescope has enabled the study of relativistic jets in active galactic nuclei down to sub-parsec linear scales even at high redshift. Quasi-si…

astro-ph.GA2024★ 18 cited

Exploring the interaction between the MW and LMC with a large sample of blue horizontal branch stars from the DESI survey

Amanda Byström, Sergey E. Koposov, Sophia Lilleengen +42

The Large Magellanic Cloud (LMC) is a Milky Way (MW) satellite that is massive enough to gravitationally attract the MW disc and inner halo, causing significant motion of the inner…

astro-ph.GA2024

Discovery and Spectroscopic Confirmation of Aquarius III: A Low-Mass Milky Way Satellite Galaxy

W. Cerny, A. Chiti, M. Geha +37

We present the discovery of Aquarius III, an ultra-faint Milky Way satellite galaxy identified in the second data release of the DECam Local Volume Exploration (DELVE) survey. Base…

astro-ph.GA2024★ 9 cited

Stellar reddening map from DESI imaging and spectroscopy

Rongpu Zhou, Julien Guy, Sergey E. Koposov +54

We present new Galactic dust reddening maps of the high Galactic latitude sky using DESI imaging and spectroscopy. We directly measure the reddening of 2.6 million stars by compari…

astro-ph.GA2024★ 3 cited

Changing-look Active Galactic Nuclei from the Dark Energy Spectroscopic Instrument. II. Statistical Properties from the First Data Release

Wei-Jian Guo, Hu Zou, Claire L. Greenwell +33

We present the identification of changing-look active galactic nuclei (CL-AGNs) from the Dark Energy Spectroscopic Instrument First Data Release and Sloan Digital Sky Survey Data R…

astro-ph.GA2024★ 31 cited

DESI Early Data Release Milky Way Survey Value-Added Catalogue

Sergey E. Koposov, C. Allende-Prieto, A. P. Cooper +40

We present the stellar value-added catalogue based on the Dark Energy Spectroscopic Instrument (DESI) Early Data Release. The catalogue contains radial velocity and stellar paramet…

astro-ph.GA2024★ 5 cited

AuriDESI: Mock Catalogues for the DESI Milky Way Survey

Namitha Kizhuprakkat, Andrew P. Cooper, Alexander H. Riley +31

The Dark Energy Spectroscopic Instrument Milky Way Survey (DESI MWS) will explore the assembly history of the Milky Way by characterising remnants of ancient dwarf galaxy accretion…

astro-ph.GA2024★ 6 cited

The magnetic field of the Radcliffe Wave: starlight polarization at nearest approach to the Sun

G. V. Panopoulou, C. Zucker, D. Clemens +6

We investigate the geometry of the magnetic field towards the Radcliffe Wave, a coherent 3-kpc-long part of the nearby Local Arm recently discovered via three-dimensional dust mapp…

astro-ph.GA2024★ 6 cited

Emission Line Predictions for Mock Galaxy Catalogues: a New Differentiable and Empirical Mapping from DESI

Ashod Khederlarian, Jeffrey A. Newman, Brett H. Andrews +43

We present a simple, differentiable method for predicting emission line strengths from rest-frame optical continua using an empirically-determined mapping. Extensive work has been…