activity
20242026
collaborators
Showing astro-ph.GAShow all

5 papers · 1 filter

astro-ph.GA2025

DESI Data Release 1: Stellar Catalogue

Sergey E. Koposov, Ting S. Li, C. Allende Prieto +65

In this paper we present the stellar Value-Added Catalogue (VAC) based on the DESI Data Release 1. This VAC contains stellar parameter, abundance and radial velocity measurements f…

astro-ph.GA2025

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 Lyrae

Gustavo E. Medina, Ting S. Li, C. Allende Prieto +39

RR Lyrae stars (RRLs) are valuable probes of both Milky Way assembly and stellar-evolution physics. Using a sample 6,240 RRLs obtained in the first year of the Dark Energy Spectros…

astro-ph.GA2025

The DESI Y1 RR Lyrae catalog I: Empirical modeling of the cyclic variation of spectroscopic properties and a chemodynamical analysis of the outer halo

Gustavo E. Medina, Ting S. Li, Sergey E. Koposov +44

We present the catalog of RR Lyrae stars (RRLs) observed in the first year of operations of the Dark Energy Spectroscopic Instrument (DESI) survey. This catalog contains 6,240 RRLs…

astro-ph.GA2024

The Fourth S-PLUS Data Release: 12-filter photometry covering square degrees in the southern hemisphere

Fabio R. Herpich, Felipe Almeida-Fernandes, Gustavo B. Oliveira Schwarz +68

The Southern Photometric Local Universe Survey (S-PLUS) is a project to map sq deg of the sky using twelve bands (seven narrow and five broadbands). Observations are per…

astro-ph.GA2024

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…