The DESI Data Release 1 white dwarf catalogue
Abstract
The Dark Energy Spectroscopic Instrument is conducting a redshift survey, mapping the universe in three dimensions to measure the history of cosmic expansion. As well as extragalactic objects, it is targeting millions of Milky Way stars, including white dwarfs. Using Data Release 1 we assemble the largest catalogue of spectroscopically-confirmed white dwarfs to date, whose straightforward selection function enables statistically-robust population studies. We visually inspect and fit models to spectra of 63968 objects, finding 44409 white dwarfs. We present their spectral classifications, atmospheric parameters and radial velocities. We assess survey completeness and uniformity, identify potential spectral contamination caused by flux from nearby sources entering the fibre, and assign confidence scores to our classifications to facilitate selection of statistical and observational samples. We present spectra representing most white dwarf classes, common and exotic. We conclude with recommendations and warnings regarding the use of the catalogue.
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- Teleparallel torsion and white dwarf structure in f(T)=T+ΞT2 gravity
- Thermodynamic and structural properties of the thin atmosphere of a white dwarf
- Star formation history of Draco revealed by DESI DR1: suppressed early star formation efficiency for Milky Way dwarf galaxies
BibTeX
@misc{swan2026desi,
title = {{The DESI Data Release 1 white dwarf catalogue}},
author = {Andrew Swan and Boris T Gänsicke and Paula Izquierdo and Detlev Koester and Christopher J Manser and Laura K Rogers and Siyi Xu and J Aguilar and S Ahlen and C. Allende Prieto and L Beraldo E. Silva and D Bianchi and D Brooks and F.J Castander and T Claybaugh and A de la Macorra and A Dey and A Font-Ribera and J.E Forero-Romero and E Gaztañaga and N. Gentile Fusillo and S Gontcho A. Gontcho and G Gutierrez and J Guy and K Honscheid and K Inight and M Ishak and R Joyce and S.E Koposov and M Landriau and L Le Guillou and T.S Li and M Manera and A Meisner and R Miquel and J Moustakas and S Nadathur and J Najita and I Pérez-Ràfols and W.J Percival and F Prada and G Rossi and E Sanchez and D Schlegel and M Schubnell and H Seo and J Silber and D Sprayberry and G Tarlé and B.A Weaver and R Zhou and H Zou},
howpublished = {HAL},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.04314},
eprint = {2609.04314},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05759148v1},
}
RIS
TY - UNPB
TI - The DESI Data Release 1 white dwarf catalogue
AU - Andrew Swan
AU - Boris T Gänsicke
AU - Paula Izquierdo
AU - Detlev Koester
AU - Christopher J Manser
AU - Laura K Rogers
AU - Siyi Xu
AU - J Aguilar
AU - S Ahlen
AU - C. Allende Prieto
AU - L Beraldo E. Silva
AU - D Bianchi
AU - D Brooks
AU - F.J Castander
AU - T Claybaugh
AU - A de la Macorra
AU - A Dey
AU - A Font-Ribera
AU - J.E Forero-Romero
AU - E Gaztañaga
AU - N. Gentile Fusillo
AU - S Gontcho A. Gontcho
AU - G Gutierrez
AU - J Guy
AU - K Honscheid
AU - K Inight
AU - M Ishak
AU - R Joyce
AU - S.E Koposov
AU - M Landriau
AU - L Le Guillou
AU - T.S Li
AU - M Manera
AU - A Meisner
AU - R Miquel
AU - J Moustakas
AU - S Nadathur
AU - J Najita
AU - I Pérez-Ràfols
AU - W.J Percival
AU - F Prada
AU - G Rossi
AU - E Sanchez
AU - D Schlegel
AU - M Schubnell
AU - H Seo
AU - J Silber
AU - D Sprayberry
AU - G Tarlé
AU - B.A Weaver
AU - R Zhou
AU - H Zou
PY - 2026
DA - 2026/09/03
PB - HAL
DO - 10.48550/arxiv.2609.04314
UR - https://hal.science/hal-05759148v1
AB - The Dark Energy Spectroscopic Instrument is conducting a redshift survey, mapping the universe in three dimensions to measure the history of cosmic expansion. As well as extragalactic objects, it is targeting millions of Milky Way stars, including white dwarfs. Using Data Release 1 we assemble the largest catalogue of spectroscopically-confirmed white dwarfs to date, whose straightforward selection function enables statistically-robust population studies. We visually inspect and fit models to spectra of 63968 objects, finding 44409 white dwarfs. We present their spectral classifications, atmospheric parameters and radial velocities. We assess survey completeness and uniformity, identify potential spectral contamination caused by flux from nearby sources entering the fibre, and assign confidence scores to our classifications to facilitate selection of statistical and observational samples. We present spectra representing most white dwarf classes, common and exotic. We conclude with recommendations and warnings regarding the use of the catalogue.
ER -