Validating Synthetic Galaxy Catalogs for Dark Energy Science in the LSST Era
Abstrak
Large simulation efforts are required to provide synthetic galaxy catalogs for ongoing and upcoming cosmology surveys. These extragalactic catalogs are being used for many diverse purposes covering a wide range of scientific topics. In order to be useful, they must offer realistically complex information about the galaxies they contain. Hence, it is critical to implement a rigorous validation procedure that ensures that the simulated galaxy properties faithfully capture observations and delivers an assessment of the level of realism attained by the catalog. We present here a suite of validation tests that have been developed by the Rubin Observatory Legacy Survey of Space and Time (LSST) Dark Energy Science Collaboration (DESC). We discuss how the inclusion of each test is driven by the scientific targets for static ground-based dark energy science and by the availability of suitable validation data. The validation criteria that are used to assess the performance of a catalog are flexible and depend on the science goals. We illustrate the utility of this suite by showing examples for the validation of cosmoDC2, the extragalactic catalog recently released for the LSST DESC second Data Challenge.
Topik & Kata Kunci
Penulis (39)
Eve Kovacs
Yao-Yuan Mao
Michel Aguena
Anita Bahmanyar
Adam Broussard
James Butler
Duncan Campbell
Chihway Chang
Shenming Fu
Katrin Heitmann
Danila Korytov
François Lanusse
Patricia Larsen
Rachel Mandelbaum
Christopher B. Morrison
Constantin Payerne
Marina Ricci
Eli Rykoff
F. Javier Sánchez
Ignacio Sevilla-Noarbe
Melanie Simet
Chun-Hao To
Vinu Vikraman
Rongpu Zhou
Camille Avestruz
Christophe Benoist
Andrew J. Benson
Lindsey Bleem
Aleksandra Ćiprianović
Céline Combet
Eric Gawiser
Shiyuan He
Remy Joseph
Jeffrey A. Newman
Judit Prat
Samuel Schmidt
Anže Slosar
Joe Zuntz
The LSST Dark Energy Science Collaboration
Akses Cepat
- Tahun Terbit
- 2021
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓