SK
S. E. Koposov
astro-ph.GAastro-ph.SRastro-ph.COastro-ph.IMastro-phastro-ph.HEastro-ph.EPhep-phhep-execon.GN
On Valency
published · living versionsW_njyq4f5s·v1 · currentpublished
DESI Strong Lens Foundry II: DESI Spectroscopy for Strong Lens Candidates
with Xiaosheng Huang, Jose Carlos Inchausti, Christopher J. Storfer, S. Tabares-Tarquinio +57
1 version
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Preprints & journals
303 papers in the corpus · 2005–2026Planetary Accretion Is Less Frequent in Wide Binaries: Evidence from Metal-Enriched White Dwarfs in DESI DR12609.11798v1 · Siyi Xu, Laura. K. Rogers, Joan Najita et al.2026 · 0 citationsarXiv
The DESI Data Release 1 white dwarf catalogue2609.04314v1 · Andrew Swan, Boris T. Gansicke, Paula Izquierdo et al.2026 · 0 citationsarXiv
The IMF package: a toolkit implementing mass functions and statistical tools to analyze them2607.26007v1 · Theo Richardson, Adam Ginsburg, Sergey Koposov2026 · 0 citationsarXiv
Neighbors, Not Kin: Kinematic evidence for tidal tails from NGC 7492 along the Sagittarius stream2607.23829v1 · Camila Navarrete, 'Alvaro Rojas-Arriagada, Andr'es E. Piatti et al.2026 · 0 citationsAstronomy & Astrophysics, 2026, Volume 714, id.A39, 17 pp. (2026)
1000 cataclysmic variables identified from DESI spectroscopy2607.22836v1 · K. Inight, B. T. Gansicke, A. Aungwerojwit et al.2026 · 0 citationsarXiv
First planetesimals from DESI DR1: 12 highly metal-rich white dwarfs2607.14251v2 · Paula Izquierdo, Andrew Swan, Boris T. Gansicke et al.2026 · 0 citationsMonthly Notices of the Royal Astronomical Society, Volume 551, Issue 1, id.stag1353, 33 pp., September 2026
Boötes III is a Tidally Disrupting Ultra-Faint Dwarf Galaxy on an Eccentric Polar Orbit2607.07803v1 · Ting S. Li, Denis Erkal, Andrew B. Pace et al.2026 · 0 citationsarXiv
Constraints on the population level distribution of nearby Dark Matter halo shapes with extragalactic streams2607.05510v1 · David Chemaly, Elisabeth Sola, Sergey Koposov et al.2026 · 0 citationsarXiv
Disentangling the Distant Stellar Halo Using K-Giants in the DESI Year 3 Data2606.18849v1 · Namitha Kizhuprakkat, Andrew P. Cooper, Wenting Wang et al.2026 · 0 citationsarXiv
Joint Modeling of GD-1 and C-19 as Old Streams2606.15863v2 · Raymond G. Carlberg, Ting S. Li, Emma Jarvis et al.2026 · 0 citationsarXiv
Constraining the Galactic bar using the M92 stellar stream2605.07918v1 · Amanda Bystrom, Sergey E. Koposov, Ting. S. Li et al.2026 · 0 citationsarXiv
Characterizing the GD-1 Stream with DESI DR2 Data: Thin Stream and Hot Cocoon2604.20958v1 · Emma Jarvis, Ting S. Li, Sergey E. Koposov et al.2026 · 0 citationsarXiv
The DECam MAGIC Survey: Investigating the Jet Stellar Stream with Photometric Metallicities2604.13374v2 · H. Q. Do, A. Chiti, P. S. Ferguson et al.2026 · 0 citationsarXiv
The velocity field of our Milky Way outer stellar halo based on DESI DR22604.01628v1 · Songting Li, Wenting Wang, Sergey E. Koposov et al.2026 · 1 citationarXiv
Epicyclic Density Variations in the Indus Stellar Stream2603.09305v1 · Yong Yang, Geraint F. Lewis, Ting S. Li et al.2026 · 0 citationsarXiv
Discovery of Galactic center ejected star in DESI DR12601.19866v2 · Manuel Cavieres, Sergey E. Koposov, Elena Maria Rossi et al.2026 · 2 citationsA&A 709, A117 (2026)
The Milky Way's circular velocity curve measured using element abundance gradients2601.18876v1 · Danny Horta, Adrian M. Price-Whelan, Sergey E. Koposov et al.2026 · 3 citationsarXiv
Illuminating the Physics of Cosmic Origin and Evolution: A UK Space Frontiers 2035 White Paper2601.16761v1 · Florian Beutler, Eva-Maria Mueller, Seshadri Nadathur et al.2026 · 0 citationsarXiv
Signatures of a Tidally Induced Spiral Arm at the Anticenter of the Milky Way and a Kinematically Extended Anticenter Stream Using DESI DR22601.14562v2 · Mika Lambert, Constance M. Rockosi, Sergey E. Koposov et al.2026 · 0 citationsarXiv
Constraining the population of dark matter halo shapes using hierarchical inference with extragalactic stellar streams2601.15373v3 · David Chemaly, Elisabeth Sola, Vasily Belokurov et al.2026 · 1 citationMonthly Notices of the Royal Astronomical Society, Volume 550, Issue 2, August 2026
Orbital migration and heating history of the Galactic disc: a transition between the bimodal discs2512.09987v1 · HanYuan Zhang, Vasily Belokurov, Jason L. Sanders et al.2025 · 2 citationsarXiv
Detailed Chemical Abundance Analysis of the Brightest Stars in the Turranburra and Willka Yaku Stellar Streams2512.10003v1 · Kaitlin B. Webber, Terese T. Hansen, Jennifer L. Marshall et al.2025 · 0 citationsarXiv
The shape-velocity alignment of satellites forged by tidal locking and dynamical friction2512.07637v2 · Hao Yang, Wenting Wang, Ting S. Li et al.2025 · 1 citationarXiv
The Binary Fraction of Stars in the Dwarf Galaxy Ursa Minor via Dark Energy Spectroscopic Instrument2512.04477v2 · Tian Qiu, Wenting Wang, Sergey Koposov et al.2025 · 2 citationsarXiv
The Milky Way stellar halo is twisted and doubly broken: insights from DESI DR2 Milky Way Survey observation2512.01350v3 · Songting Li, Wenting Wang, Sergey E. Koposov et al.2025 · 7 citationsarXiv
: Tidal Disruption in Crater 2 and Formation of Diffuse Dwarf Galaxies in the Local Group2512.02177v2 · Guilherme Limberg, Alexander P. Ji, Ting S. Li et al.2025 · 0 citationsarXiv
DESI DR2 Galaxy Luminosity Functions2511.01803v2 · Samuel G. Moore, Shaun Cole, Michael Wilson et al.2025 · 1 citationarXiv
The Draco Dwarf Spheroidal Galaxy in the First Year of DESI Data2509.21822v2 · J. Ding, C. Rockosi, Ting S. Li et al.2025 · 2 citationsarXiv
DESI Strong Lens Foundry III: Keck Spectroscopy for Strong Lenses Discovered Using Residual Neural Networks2509.18086v2 · Shrihan Agarwal, Xiaosheng Huang, William Sheu et al.2025 · 0 citationsApJ 1001 162 (2026)
DESI Strong Lens Foundry II: DESI Spectroscopy for Strong Lens Candidates2509.18089v1 · Xiaosheng Huang, Jose Carlos Inchausti, Christopher J. Storfer et al.2025 · 1 citationarXivon Valency
Chemodynamics of BoötesI with : Revised Velocity Gradient, Dark Matter Density, and Galactic Chemical Evolution Constraints2509.02546v1 · Nathan R. Sandford, Ting S. Li, Sergey E. Koposov et al.2025 · 1 citationarXiv
STRRINGS: STReams in Residual Images of Nearby GalaxieS2508.02154v2 · E. Sola, D. Chemaly, V. Belokurov et al.2025 · 7 citationsMon Not R Astron Soc (2025) 735-763
The dark matter content of Milky Way dwarf spheroidal galaxies: Draco, Sextans and Ursa Minor2507.02284v3 · Hao Yang, Wenting Wang, Ling Zhu et al.2025 · 5 citationsarXiv
Sifting for a Stream: The Morphology of the Stellar Stream2506.21410v2 · Benjamin Cohen, Alexander P. Ji, Peter S. Ferguson et al.2025 · 1 citationarXiv
Searching for stars ejected from the Galactic Centre in DESI2506.19570v2 · Sill Verberne, Sergey E. Koposov, Elena Maria Rossi et al.2025 · 1 citationA&A 701, A58 (2025)
The Backup Program of the Dark Energy Spectroscopic Instrument's Milky Way Survey2505.17230v1 · Arjun Dey, Sergey E. Koposov, Joan R. Najita et al.2025 · 3 citationsarXivon Valency
DESI Data Release 1: Stellar Catalogue2505.14787v4 · Sergey E. Koposov, Ting S. Li, C. Allende Prieto et al.2025 · 15 citationsOpen Journal Of Astrophysics, Vol 9 (2026)
The DESI Y1 RR Lyrae catalog II: The metallicity dependency of pulsational properties, the shape of the RR Lyrae instability strip, and metal rich RR Lyrae2505.10614v2 · Gustavo E. Medina, Ting S. Li, C. Allende Prieto et al.2025 · 1 citationarXiv
Nearby stellar substructures in the Galactic halo from DESI Milky Way Survey Year 1 Data Release2504.20327v2 · Bokyoung Kim, Sergey E. Koposov, Ting S. Li et al.2025 · 5 citationsMon. Not. R. Astron. Soc. 540 (2025) 264-288
The Cocytos Stream: A Disrupted Globular Cluster from our Last Major Merger?2504.11687v2 · Christian Aganze, Vedant Chandra, Risa H. Wechsler et al.2025 · 1 citationarXiv
The DESI Y1 RR Lyrae catalog I: Empirical modeling of the cyclic variation of spectroscopic properties and a chemodynamical analysis of the outer halo2504.02924v2 · Gustavo E. Medina, Ting S. Li, Sergey E. Koposov et al.2025 · 1 citationarXiv
Flipping of the tidal tails of the Ophiuchus stream due to the decelerating Galactic bar2503.19221v1 · Yong Yang, Geraint F. Lewis, Denis Erkal et al.2025 · 7 citations2025 ApJ 984 189
DESI DR2 Results II: Measurements of Baryon Acoustic Oscillations and Cosmological Constraints2503.14738v3 · M. Abdul-Karim, J. Aguilar, S. Ahlen et al.2025 · 580 citationsPhys. Rev. D 112, 083515, 2025on Valency
Data Release 1 of the Dark Energy Spectroscopic Instrument2503.14745v2 · M. Abdul Karim, A. G. Adame, D. Aguado et al.2025 · 155 citationsarXivon Valency
Luminosity and stellar mass functions of faint photometric satellites around spectroscopic central galaxies from DESI Year-1 Bright Galaxy Survey2503.03317v2 · Wenting Wang, Xiaohu Yang, Yipeng Jing et al.2025 · 5 citationsarXiv
SpecDis: Value added distance catalogue for 4 million stars from DESI Year-1 data2503.02291v3 · Songting Li, Wenting Wang, Sergey E. Koposov et al.2025 · 0 citationsarXivon Valency
PAC in DESI. I. Galaxy Stellar Mass Function into the Frontier2503.01948v4 · Kun Xu, Durham, SJTU et al.2025 · 8 citationsMon. Not. R. Astron. Soc. 540, 1635-1667 (2025)
Double progenitor origin of the S-star cluster2502.17165v2 · Sill Verberne, Elena Maria Rossi, Sergey E. Koposov et al.2025 · 7 citationsA&A 696, A218 (2025)
VIRAC2: NIR Astrometry and Time Series Photometry for 500M+ Stars from the VVV and VVVX Surveys2501.06295v1 · Leigh C. Smith, Philip W. Lucas, Sergey E. Koposov et al.2025 · 26 citationsarXiv
Constraining the phase shift of relativistic species in DESI BAOs2412.05990v2 · Abb'e M. Whitford, Hugo Rivera-Morales, Cullan Howlett et al.2024 · 11 citationsarXiv
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