DESC DC2 Data Release Note

Bela Abolfathi , Robert Armstrong , Humna Awan , Yadu N. Babuji , Franz Erik Bauer , George Beckett , Rahul Biswas , Joanne R. Bogart , Dominique Boutigny (1) , Kyle Chard , James Chiang , Johann Cohen-Tanugi (2, 3) , Andrew J. Connolly , Scott F. Daniel , Seth W. Digel , Alex Drlica-Wagner , Richard Dubois , Eric Gawiser , Thomas Glanzman , Salman Habib , Andrew P. Hearin , Katrin Heitmann , Fabio Hernandez (4) , Renée Hložek , Joseph Hollowed , Mike Jarvis , Saurabh W. Jha , J. Bryce Kalmbach , Heather M. Kelly , Eve Kovacs , Danila Korytov , K. Simon Krughoff , Craig S. Lage , François Lanusse (5) , Patricia Larsen , Nan Li , Emily Phillips Longley , Robert H. Lupton , Rachel Mandelbaum , Yao-Yuan Mao , Phil Marshall , Joshua E. Meyers , Ji Won Park , Julien Peloton (6) , Daniel Perrefort , James Perry , Stéphane Plaszczynski (6) , Adrian Pope , Eli S. Rykoff , F. Javier Sánchez , Samuel J. Schmidt , Thomas D. Uram , Antonia Villarreal , Christopher W. Walter , Matthew P. Wiesner , W. Michael Wood-Vasey

1 LAPP - Laboratoire d'Annecy de Physique des Particules
2 LUPM - Laboratoire Univers et Particules de Montpellier
3 LPC - Laboratoire de Physique de Clermont
4 CC-IN2P3 - Centre de Calcul de l'IN2P3
5 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
6 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie

In preparation for cosmological analyses of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the LSST Dark Energy Science Collaboration (LSST DESC) has created a 300 deg$^2$ simulated survey as part of an effort called Data Challenge 2 (DC2). The DC2 simulated sky survey, in six optical bands with observations following a reference LSST observing cadence, was processed with the LSST Science Pipelines (19.0.0). In this Note, we describe the public data release of the resulting object catalogs for the coadded images of five years of simulated observations along with associated truth catalogs. We include a brief description of the major features of the available data sets. To enable convenient access to the data products, we have developed a web portal connected to Globus data services. We describe how to access the data and provide example Jupyter Notebooks in Python to aid first interactions with the data. We welcome feedback and questions about the data release via a GitHub repository.

Domaines: Astrophysique [astro-ph]; Instrumentations et Détecteurs [physics.ins-det]

Bela Abolfathi, Robert Armstrong, Humna Awan, Yadu N. Babuji, Franz Erik Bauer, et al.. DESC DC2 Data Release Note. 2021. ⟨hal-03129546⟩