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1. The CAMELS Project: Public Data Release

Author

Francisco Villaescusa-Navarro, Shy Genel, Daniel Anglés-Alcázar, Lucia A. Perez, Pablo Villanueva-Domingo, Digvijay Wadekar, Helen Shao, Faizan G. Mohammad, Sultan Hassan, Emily Moser, Erwin T. Lau, Luis Fernando Machado Poletti Valle, Andrina Nicola, Leander Thiele, Yongseok Jo, Oliver H. E. Philcox, Benjamin D. Oppenheimer, Megan Tillman, ChangHoon Hahn, Neerav Kaushal, Alice Pisani, Matthew Gebhardt, Ana Maria Delgado, Joyce Caliendo, Christina Kreisch, Kaze W. K. Wong, William R. Coulton, Michael Eickenberg, Gabriele Parimbelli, Yueying Ni, Ulrich P. Steinwandel, Valentina La Torre, Romeel Dave, Nicholas Battaglia, Daisuke Nagai, David N. Spergel, Lars Hernquist, Blakesley Burkhart, Desika Narayanan, Benjamin Wandelt, Rachel S. Somerville, Greg L. Bryan, Matteo Viel, Yin Li, Vid Irsic, Katarina Kraljic, Federico Marinacci, Mark Vogelsberger, Villaescusa-Navarro, F [0000-0002-4816-0455], Genel, S [0000-0002-3185-1540], Anglés-Alcázar, D [0000-0001-5769-4945], Perez, LA [0000-0002-8449-1956], Villanueva-Domingo, P [0000-0002-0936-4279], Wadekar, D [0000-0002-2544-7533], Shao, H [0000-0002-0152-6747], Mohammad, FG [0000-0001-9243-7434], Hassan, S [0000-0002-1050-7572], Moser, E [0000-0003-1593-1505], Lau, ET [0000-0001-8914-8885], Machado Poletti Valle, LF [0000-0002-1948-3562], Thiele, L [0000-0003-2911-9163], Jo, Y [0000-0003-3977-1761], Philcox, OHE [0000-0002-3033-9932], Oppenheimer, BD [0000-0002-3391-2116], Tillman, M [0000-0002-1185-4111], Hahn, CH [0000-0003-1197-0902], Kaushal, N [0000-0003-4786-2348], Pisani, A [0000-0002-6146-4437], Caliendo, J [0000-0001-9719-7177], Kreisch, C [0000-0002-5061-7805], Wong, KWK [0000-0001-8432-7788], Coulton, WR [0000-0002-1297-3673], Parimbelli, G [0000-0002-2539-2472], Steinwandel, UP [0000-0001-8867-5026], Dave, R [0000-0003-2842-9434], Nagai, D [0000-0002-6766-5942], Spergel, DN [0000-0002-5151-0006], Hernquist, L [0000-0001-6950-1629], Burkhart, B [0000-0001-5817-5944], Narayanan, D [0000-0002-7064-4309], Wandelt, B [0000-0002-5854-8269], Somerville, RS [0000-0002-6748-6821], Bryan, GL [0000-0003-2630-9228], Viel, M [0000-0002-2642-5707], Li, Y [0000-0002-0701-1410], Irsic, V [0000-0002-5445-461X], Kraljic, K [0000-0001-6180-0245], Marinacci, F [0000-0003-3816-7028], Vogelsberger, M [0000-0001-8593-7692], Apollo - University of Cambridge Repository, HEP, INSPIRE, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), and CAMELS

Subjects
FOS: Computer and information sciences, Computer Science - Machine Learning, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Computer Science - Artificial Intelligence, Hydrodynamical simulations, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, [INFO] Computer Science [cs], Machine Learning (cs.LG), Astrostatistics, Settore FIS/05 - Astronomia e Astrofisica, Cosmology, Galaxy formation, [INFO]Computer Science [cs], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Artificial Intelligence (cs.AI), Space and Planetary Science, [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Astrophysics of Galaxies (astro-ph.GA), [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Cosmology and Astrophysics with Machine Learning Simulations (CAMELS) project was developed to combine cosmology with astrophysics through thousands of cosmological hydrodynamic simulations and machine learning. CAMELS contains 4233 cosmological simulations, 2049 N-body simulations, and 2184 state-of-the-art hydrodynamic simulations that sample a vast volume in parameter space. In this paper, we present the CAMELS public data release, describing the characteristics of the CAMELS simulations and a variety of data products generated from them, including halo, subhalo, galaxy, and void catalogs, power spectra, bispectra, Lyα spectra, probability distribution functions, halo radial profiles, and X-rays photon lists. We also release over 1000 catalogs that contain billions of galaxies from CAMELS-SAM: a large collection of N-body simulations that have been combined with the Santa Cruz semianalytic model. We release all the data, comprising more than 350 terabytes and containing 143,922 snapshots, millions of halos, galaxies, and summary statistics. We provide further technical details on how to access, download, read, and process the data at https://camels.readthedocs.io., The Astrophysical Journal. Supplement Series, 265 (2), ISSN:1538-4365, ISSN:0067-0049

Published
2023
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2. The Target-selection Pipeline for the Dark Energy Spectroscopic Instrument

Author

Adam D. Myers, John Moustakas, Stephen Bailey, Benjamin A. Weaver, Andrew P. Cooper, Jaime E. Forero-Romero, Bela Abolfathi, David M. Alexander, David Brooks, Edmond Chaussidon, Chia-Hsun Chuang, Kyle Dawson, Arjun Dey, Biprateep Dey, Govinda Dhungana, Peter Doel, Kevin Fanning, Enrique Gaztañaga, Satya Gontcho A Gontcho, Alma X. Gonzalez-Morales, ChangHoon Hahn, Hiram K. Herrera-Alcantar, Klaus Honscheid, Mustapha Ishak, Tanveer Karim, David Kirkby, Theodore Kisner, Sergey E. Koposov, Anthony Kremin, Ting-Wen Lan, Martin Landriau, Dustin Lang, Michael E. Levi, Christophe Magneville, Lucas Napolitano, Paul Martini, Aaron Meisner, Jeffrey A. Newman, Nathalie Palanque-Delabrouille, Will Percival, Claire Poppett, Francisco Prada, Anand Raichoor, Ashley J. Ross, Edward F. Schlafly, David Schlegel, Michael Schubnell, Ting Tan, Gregory Tarle, Michael J. Wilson, Christophe Yèche, Rongpu Zhou, Zhimin Zhou, Hu Zou, Moustakas, J [0000-0002-2733-4559], Bailey, S [0000-0003-4162-6619], Cooper, AP [0000-0001-8274-158X], Forero-Romero, JE [0000-0002-2890-3725], Abolfathi, B [0000-0003-1820-8486], Alexander, DM [0000-0002-5896-6313], Brooks, D [0000-0002-8458-5047], Chaussidon, E [0000-0001-8996-4874], Chuang, CH [0000-0002-3882-078X], Dawson, K [0000-0002-0553-3805], Dey, A [0000-0002-4928-4003], Dey, B [0000-0002-5665-7912], Dhungana, G [0000-0002-5402-1216], Gaztañaga, E [0000-0001-9632-0815], Gonzalez-Morales, AX [0000-0003-4089-6924], Hahn, CH [0000-0003-1197-0902], Herrera-Alcantar, HK [0000-0002-9136-9609], Ishak, M [0000-0002-6024-466X], Karim, T [0000-0002-5652-8870], Kirkby, D [0000-0002-8828-5463], Kisner, T [0000-0003-3510-7134], Koposov, SE [0000-0003-2644-135X], Kremin, A [0000-0001-6356-7424], Lan, TW [0000-0001-8857-7020], Landriau, M [0000-0003-1838-8528], Lang, D [0000-0002-1172-0754], Levi, ME [0000-0003-1887-1018], Napolitano, L [0000-0002-5166-8671], Martini, P [0000-0002-4279-4182], Meisner, A [0000-0002-1125-7384], Newman, JA [0000-0001-8684-2222], Palanque-Delabrouille, N [0000-0003-3188-784X], Percival, W [0000-0002-0644-5727], Prada, F [0000-0001-7145-8674], Raichoor, A [0000-0001-5999-7923], Schlafly, EF [0000-0002-3569-7421], Schlegel, D [0000-0002-5042-5088], Tan, T [0000-0001-8289-1481], Tarle, G [0000-0003-1704-0781], Yèche, C [0000-0001-5146-8533], Zhou, R [0000-0001-5381-4372], Zhou, Z [0000-0002-4135-0977], Zou, H [0000-0002-6684-3997], Apollo - University of Cambridge Repository, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Ministerio de Ciencia e Innovación (España)

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), astro-ph.GA, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Space and Planetary Science, 5101 Astronomical Sciences, Astrophysics of Galaxies (astro-ph.GA), astro-ph.CO, 7 Affordable and Clean Energy, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Instrumentation and Methods for Astrophysics (astro-ph.IM), 51 Physical Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics, astro-ph.IM
Abstract

Full list of authors: Myers, Adam D.; Moustakas, John; Bailey, Stephen; Weaver, Benjamin A.; Cooper, Andrew P.; Forero-Romero, Jaime E.; Abolfathi, Bela; Alexander, David M.; Brooks, David; Chaussidon, Edmond; Chuang, Chia-Hsun; Dawson, Kyle; Dey, Arjun; Dey, Biprateep; Dhungana, Govinda; Doel, Peter; Fanning, Kevin; Gaztanaga, Enrique; Gontcho, Satya Gontcho; Gonzalez-Morales, Alma X.; Hahn, ChangHoon; Herrera-Alcantar, Hiram K.; Honscheid, Klaus; Ishak, Mustapha; Karim, Tanveer; Kirkby, David; Kisner, Theodore; Koposov, Sergey E.; Kremin, Anthony; Lan, Ting-Wen; Landriau, Martin; Lang, Dustin; Levi, Michael E.; Magneville, Christophe; Napolitano, Lucas; Martini, Paul; Meisner, Aaron; Newman, Jeffrey A.; Palanque-Delabrouille, Nathalie; Percival, Will; Poppett, Claire; Prada, Francisco; Raichoor, Anand; Ross, Ashley J.; Schlafly, Edward F.; Schlegel, David; Schubnell, Michael; Tan, Ting; Tarle, Gregory; Wilson, Michael J.; Yeche, Christophe; Zhou, Rongpu; Zhou, Zhimin; Zou, Hu.--This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited., In 2021 May, the Dark Energy Spectroscopic Instrument (DESI) began a 5 yr survey of approximately 50 million total extragalactic and Galactic targets. The primary DESI dark-time targets are emission line galaxies, luminous red galaxies, and quasars. In bright time, DESI will focus on two surveys known as the Bright Galaxy Survey and the Milky Way Survey. DESI also observes a selection of "secondary" targets for bespoke science goals. This paper gives an overview of the publicly available pipeline (desitarget) used to process targets for DESI observations. Highlights include details of the different DESI survey targeting phases, the targeting ID (TARGETID) used to define unique targets, the bitmasks used to indicate a particular type of target, the data model and structure of DESI targeting files, and examples of how to access and use the desitarget code base. This paper will also describe "supporting" DESI target classes, such as standard stars, sky locations, and random catalogs that mimic the angular selection function of DESI targets. The DESI target-selection pipeline is complex and sizable; this paper attempts to summarize the most salient information required to understand and work with DESI targeting data. © 2023. The Author(s). Published by the American Astronomical Society., A.D.M. and J.M. were supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award Numbers DE-SC0019022 and DE-SC0020086. A.P.C. is supported by a Taiwan Ministry of Education Yushan Fellowship and Taiwan Ministry of Science and Technology grant No. 109-2112-M-007-011-MY3. This research is supported by the Director, Office of Science, Office of High Energy Physics of the U.S. Department of Energy under Contract No. DEAC0205CH11231, and by the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility under the same contract; additional support for DESI is provided by the U.S. National Science Foundation, Division of Astronomical Sciences under Contract No. AST-0950945 to the NSF's National Optical-Infrared Astronomy Research Laboratory; the Science and Technologies Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising-Simons Foundation; the French Alternative Energies and Atomic Energy Commission (CEA); the National Council of Science and Technology of Mexico (CONACYT); the Ministry of Science and Innovation of Spain (MICINN), and by the DESI Member Institutions: https://www.desi.lbl.gov/collaborating-institutions., With funding from the Spanish government through the "Severo Ochoa Centre of Excellence" accreditation (CEX2021-001131-S).

Published
2023
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