SpecDis: Value Added Distance Catalog for 4 Million Stars from DESI Year-1 Data

SpecDis: Value Added Distance Catalog for 4 Million Stars from DESI Year-1 Data

We present the S pec D is value-added stellar distance catalog accompanying DESI Data Release 1. S pec D is trains a feed-forward neural network (NN) with Gaia parallaxes and gets the distance estimates. To build up an unbiased training sample, we do not apply selections on parallax error or signal-...

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Main Authors: Songting Li, Wenting Wang, Sergey E. Koposov, Ting S. Li, Youjia Wu, Monica Valluri, Joan Najita, Carlos Allende Prieto, Amanda Byström, Christopher J. Manser, Jiaxin Han, Carles G. Palau, Hao Yang, Andrew P. Cooper, Namitha Kizhuprakkat, Alexander H. Riley, Leandro Beraldo e Silva, Jessica Nicole Aguilar, Steven Ahlen, David Bianchi, David Brooks, Todd Claybaugh, Axel de la Macorra, John Della Costa, Arjun Dey, Peter Doel, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Klaus Honscheid, Mustapha Ishak, Stephanie Juneau, Robert Kehoe, Theodore Kisner, Anthony Kremin, Martin Landriau, Laurent Le Guillou, Michael Levi, Marc Manera, Aaron Meisner, Ramon Miquel, John Moustakas, Nathalie Palanque-Delabrouille, Will Percival, Claire Poppett, Francisco Prada, Ignasi Pérez-Ràfols, Graziano Rossi, Eusebio Sanchez, David Schlegel, Michael Schubnell, Hee-Jong Seo, Joseph Harry Silber, David Sprayberry, Gregory Tarlé, Benjamin Alan Weaver, Rongpu Zhou, Hu Zou
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astronomical Journal
Subjects:
Astronomy data analysis
Stellar distance
Redshift surveys
Online Access:https://doi.org/10.3847/1538-3881/adf1a0
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https://doi.org/10.3847/1538-3881/adf1a0

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