Accès ouvert
2026
article
OpenAlex
Y. L. Chang, Ting-Wen Lan, Jason Xavier Prochaska, M. Siudek et autres
Abstract We investigate the properties of the cool circumgalactic medium (CGM) of massive galaxies and their cosmic evolution. By using the year 1 data set of luminous red galaxies (LRGs) and QSOs from the Dark Energy Spectroscopic Instrument survey, we construct a …
tw, jp, us, es, ro, it, gb, mx, bo, fr, ca, kr, cn
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Accès ouvert
2026
article
OpenAlex
Gaocheng Yin, Linhua Jiang, Zhiwei Pan, Paul Martini et autres
Abstract We present a study of the evolution of type 1 quasars at 1.0 < z < 3.5, covering the peak epoch of quasar activity. The quasar evolution has been extensively explored by a variety of previous works and the derived quasar …
cn, us, cl, mx, fr, gb, it, es, ro, kr, bo, ca
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Accès ouvert
2026
article
OpenAlex
Ross J. Turner, Chris Blake, José Aguilar, S. Ahlen et autres
Joint analysis of the local peculiar velocity and galaxy density fields offers a promising route to testing cosmological models of gravity. We present a measurement of the normalised growth rate of structure, f σ 8 , from the two-point correlations of velocity …
fr
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Accès ouvert
2026
article
OpenAlex
Caitlin Ross, Cullan Howlett, John R. Lucey, Khadija Omar Said et autres
Abstract Measurements of peculiar velocities in the local Universe are a powerful tool to study the nature of dark energy at low ( z < 0.1) redshifts. Here we present the largest single set of z < 0.1 peculiar velocity measurements to …
au, gb, us, fr, it, kr, mx, ca, es, bo, ro, ph, cn
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Accès ouvert
2026
article
OpenAlex
Xander J. Hall, A. Palmese, S. BenZvi, John Banovetz et autres
Abstract We present the first systematic spectroscopic observations of extragalactic transients from the Dark Energy Spectroscopic Instrument (DESI), as part of the DESI Transients Survey program. With 5000 fibers and an ∼8 deg 2 field of view, we exploit DESI as a …
us, it, gb, mx, es, bo, fr, ca, kr, cn
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Accès ouvert
2026
article
OpenAlex
Jean Choppin de Janvry, Satya Gontcho A Gontcho, U. Seljak, Antón Baleato Lizancos et autres
Abstract The calibration of tomographic redshift distributions is essential for cosmological analysis of weak lensing data. In this work, we calibrate all four tomographic bins of the Hyper Suprime Camera (HSC) weak lensing catalog with the Dark Energy Spectroscopic Instrument (DESI) Data …
us, es, cl, it, gb, mx, co, bo, fr, ca, kr
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Accès ouvert
2026
article
OpenAlex
Shrihan Agarwal, Xiaosheng Huang, C. Storfer, Marcos Tamargo-Arizmendi et autres
Abstract We present spectroscopic data of strong lenses and their source galaxies using the Keck Near-Infrared Echellette Spectrometer (NIRES) and the Dark Energy Spectroscopic Instrument (DESI), providing redshifts necessary for nearly all strong-lensing applications with these systems, especially the extraction of physical …
us, cl, ca, de, fr, cn, jp, gb, co, es, mx, kr
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Accès ouvert
2026
article
OpenAlex
Ariel Amsellem, A. Palmese, Kelly A. Douglass, Cullan Howlett et autres
Abstract We present a new measurement of the Hubble constant, H 0 , following the gravitational-wave event GW170817 and Dark Energy Spectroscopic Instrument (DESI) observations. A standard siren measurement with a nearby (luminosity distance ∼40 Mpc) event such as GW170817 is typically …
us, au, it, gb, kr, mx, ca, es, co, fr
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Accès ouvert
2026
article
OpenAlex
Cullan Howlett, J. Aguilar, Steven P. Ahlen, Ariel Amsellem et autres
Abstract We present the constraint on the growth rate of structure from the combination of DESI DR1 BGS sample, Fundamental Plane, and Tully-Fisher peculiar velocity catalogues using the maximum likelihood fields method. The combined catalogue contains 415,523 galaxy redshifts and 76,616 peculiar …
us, au, fr, it, gb, kr, mx, es, co, ca, cn
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Accès ouvert
2026
article
OpenAlex
Juliana S. M. Karp, David J. Schlegel, Xiaosheng Huang, Nikhil Padmanabhan et autres
Abstract We present 4110 strong gravitational lens candidates, 3887 of which are new discoveries, selected from a sample of 5,837,154 luminous red galaxies (LRGs) observed with the Dark Energy Spectroscopic Instrument (DESI). Candidates are identified via the presence of background ionized oxygen …
us, it, gb, es, mx, co, au, fr, ca, kr, cn
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Accès ouvert
2026
article
OpenAlex
J Ratajczak, Kyle Dawson, N Weaverdyck, Steven P. Ahlen et autres
Abstract Over several dedicated programs that include targets beyond the main cosmological samples, the Dark Energy Spectroscopic Instrument collected spectra for 304,970 unique objects in two fields centered on the COSMOS and XMM-LSS fields. In this work, we develop spectroscopic redshift robustness …
fr
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Accès ouvert
2025
article
OpenAlex
Martin Landriau, Erin Mentuch Cooper, Dustin Davis, Karl Gebhardt et autres
Abstract The Hobby–Eberly Dark Energy Experiment (HETDEX) is an untargeted spectroscopic galaxy survey that uses Ly α- emitting galaxies (LAEs) as tracers of 1.9 < z < 3.5 large-scale structure. Most detections consist of a single emission line, whose identity is inferred …
us, fr, it, ch, gb, mx, co, es, nl, au, uz, kr, jp, cn
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