The Astrophysical Journal (Jan 2025)
Luminosity and Stellar Mass Functions of Faint Photometric Satellites around Spectroscopic Central Galaxies from DESI Year-1 Bright Galaxy Survey
- Wenting Wang,
- Xiaohu Yang,
- Yipeng Jing,
- Ashley J. Ross,
- Malgorzata Siudek,
- John Moustakas,
- Samuel G. Moore,
- Shaun Cole,
- Carlos Frenk,
- Jiaxi Yu,
- Sergey E. Koposov,
- Jiaxin Han,
- Zhenlin Tan,
- Kun Xu,
- Yizhou Gu,
- Yirong Wang,
- Oleg Y. Gnedin,
- Jessica Nicole Aguilar,
- Steven Ahlen,
- Davide Bianchi,
- David Brooks,
- Todd Claybaugh,
- Axel de la Macorra,
- Arjun Dey,
- Peter Doel,
- Jaime E. Forero-Romero,
- Enrique Gaztañaga,
- Satya Gontcho A Gontcho,
- Gaston Gutierrez,
- Klaus Honscheid,
- Mustapha Ishak,
- Theodore Kisner,
- Martin Landriau,
- Laurent Le Guillou,
- Marc Manera,
- Aaron Meisner,
- Ramon Miquel,
- Seshadri Nadathur,
- Claire Poppett,
- Francisco Prada,
- Ignasi Pérez-Ràfols,
- Graziano Rossi,
- Eusebio Sanchez,
- David Schlegel,
- Hee-Jong Seo,
- Joseph Harry Silber,
- David Sprayberry,
- Gregory Tarlé,
- Benjamin Alan Weaver,
- Hu Zou
Affiliations
- Wenting Wang
- ORCiD
- Department of Astronomy, School of Physics and Astronomy, and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China ; [email protected], [email protected], [email protected]; State Key Laboratory of Dark Matter Physics, School of Physics and Astronomy, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China
- Xiaohu Yang
- ORCiD
- Department of Astronomy, School of Physics and Astronomy, and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China ; [email protected], [email protected], [email protected]; Tsung-Dao Lee Institute, and Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China
- Yipeng Jing
- ORCiD
- Department of Astronomy, School of Physics and Astronomy, and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China ; [email protected], [email protected], [email protected]; Tsung-Dao Lee Institute, and Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China
- Ashley J. Ross
- Center for Cosmology and AstroParticle Physics, The Ohio State University , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Malgorzata Siudek
- ORCiD
- Institute of Space Sciences , ICE-CSIC, Campus UAB, Carrer de Can Magrans s/n, 08913 Bellaterra, Barcelona, Spain; Instituto Astrofisica de Canarias , Av. Via Lactea s/n, 38205 La Laguna, Spain
- John Moustakas
- ORCiD
- Department of Physics and Astronomy , Siena College, 515 Loudon Road, Loudonville, NY 12110, USA
- Samuel G. Moore
- Institute for Computational Cosmology, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
- Shaun Cole
- ORCiD
- Institute for Computational Cosmology, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
- Carlos Frenk
- ORCiD
- Institute for Computational Cosmology, Department of Physics, Durham University , South Road, Durham DH1 3LE, UK
- Jiaxi Yu
- Kavli IPMU (WPI), UTIAS, The University of Tokyo , Kashiwa, Chiba 277-8583, Japan
- Sergey E. Koposov
- ORCiD
- Institute for Astronomy, University of Edinburgh , Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK; Institute of Astronomy, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UK
- Jiaxin Han
- ORCiD
- Department of Astronomy, School of Physics and Astronomy, and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China ; [email protected], [email protected], [email protected]
- Zhenlin Tan
- Department of Astronomy, School of Physics and Astronomy, and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China ; [email protected], [email protected], [email protected]
- Kun Xu
- ORCiD
- Center for Particle Cosmology, Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, PA 19104, USA
- Yizhou Gu
- Tsung-Dao Lee Institute, and Key Laboratory for Particle Physics, Astrophysics and Cosmology, Ministry of Education, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China
- Yirong Wang
- ORCiD
- Department of Astronomy, School of Physics and Astronomy, and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University , Shanghai 200240, People’s Republic of China ; [email protected], [email protected], [email protected]
- Oleg Y. Gnedin
- ORCiD
- Department of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA
- Jessica Nicole Aguilar
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Steven Ahlen
- ORCiD
- Physics Department, Boston University , 590 Commonwealth Avenue, Boston, MA 02215, USA
- Davide Bianchi
- ORCiD
- Dipartimento di Fisica “Aldo Pontremoli,” Università degli Studi di Milano , Via Celoria 16, I-20133 Milano, Italy; INAF—Osservatorio Astronomico di Brera , Via Brera 28, 20122 Milano, Italy
- David Brooks
- ORCiD
- Department of Physics & Astronomy, University College London , Gower Street, London, WC1E 6BT, UK
- Todd Claybaugh
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Axel de la Macorra
- Departamento de Física, Centro de Investigación y de Estudios Avanzados del IPN , Av. Politécnico 2508, Col. Sn. Pedro Zacatenco, Del. Gustavo A. Madero, 07010 CDMX, México; Departamento de Física, Instituto Nacional de Investigaciones Nucleares , Carreterra México-Toluca S/N, La Marquesa, Ocoyoacac, Edo. de México C. P. 52750, México; Departamento de Física, DCI-Campus León, Universidad de Guanajuato , Loma del Bosque 103, León, Guanajuato C. P. 37150, México.; Instituto de Física, Universidad Nacional Autónoma de México , Circuito de la Investigación Científica, Ciudad Universitaria, Cd. de México C. P. 04510, México
- Arjun Dey
- ORCiD
- NSF NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Peter Doel
- ORCiD
- Department of Physics & Astronomy, University College London , Gower Street, London, WC1E 6BT, UK
- Jaime E. Forero-Romero
- Departamento de Física, Universidad de los Andes , Cra. 1 No. 18A-10, Edificio Ip, CP 111711, Bogotá, Colombia; Observatorio Astronómico, Universidad de los Andes , Cra. 1 No. 18A-10, Edificio H, CP 111711 Bogotá, Colombia
- Enrique Gaztañaga
- Institut d’Estudis Espacials de Catalunya (IEEC) , c/ Esteve Terradas 1, Edifici RDIT, Campus PMT-UPC, 08860 Castelldefels, Spain; Institute of Cosmology and Gravitation, University of Portsmouth , Dennis Sciama Building, Portsmouth, PO1 3FX, UK
- Satya Gontcho A Gontcho
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Gaston Gutierrez
- Fermi National Accelerator Laboratory , PO Box 500, Batavia, IL 60510, USA
- Klaus Honscheid
- ORCiD
- Center for Cosmology and AstroParticle Physics, The Ohio State University , 191 West Woodruff Avenue, Columbus, OH 43210, USA; The Ohio State University , Columbus, OH 43210, USA; Department of Physics, The Ohio State University , 191 West Woodruff Avenue, Columbus, OH 43210, USA
- Mustapha Ishak
- ORCiD
- Department of Physics, The University of Texas at Dallas , 800 W. Campbell Road, Richardson, TX 75080, USA
- Theodore Kisner
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Martin Landriau
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Laurent Le Guillou
- ORCiD
- Sorbonne Université , CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), FR-75005 Paris, France
- Marc Manera
- Institut de Física d’Altes Energies (IFAE) , The Barcelona Institute of Science and Technology, Edifici Cn, Campus UAB, 08193, Bellaterra (Barcelona), Spain; Departament de Física, Serra Húnter, Universitat Autònoma de Barcelona , 08193 Bellaterra (Barcelona), Spain
- Aaron Meisner
- NSF NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Ramon Miquel
- ORCiD
- Institut de Física d’Altes Energies (IFAE) , The Barcelona Institute of Science and Technology, Edifici Cn, Campus UAB, 08193, Bellaterra (Barcelona), Spain; Institució Catalana de Recerca i Estudis Avançats , Passeig de Lluís Companys, 23, 08010 Barcelona, Spain
- Seshadri Nadathur
- ORCiD
- Institute of Cosmology and Gravitation, University of Portsmouth , Dennis Sciama Building, Portsmouth, PO1 3FX, UK
- Claire Poppett
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA; University of California , Berkeley, 110 Sproul Hall #5800 Berkeley, CA 94720, USA; Space Sciences Laboratory, University of California, Berkeley , 7 Gauss Way, Berkeley, CA 94720, USA
- Francisco Prada
- Instituto de Física Teórica (IFT) UAM/CSIC, Universidad Autónoma de Madrid , Cantoblanco, E-28049, Madrid, Spain; Instituto de Astrofísica de Andalucía (CSIC) , Glorieta de la Astronomía, s/n, E-18008 Granada, Spain; Instituto de Astrofísica de Canarias , C/ Vía Láctea, s/n, E-38205 La Laguna, Tenerife, Spain
- Ignasi Pérez-Ràfols
- ORCiD
- Departament de Física, EEBE, Universitat Politècnica de Catalunya , c/Eduard Maristany 10, 08930 Barcelona, Spain
- Graziano Rossi
- Department of Physics and Astronomy, Sejong University , 209 Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea
- Eusebio Sanchez
- ORCiD
- CIEMAT , Avenida Complutense 40, E-28040 Madrid, Spain
- David Schlegel
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- Hee-Jong Seo
- ORCiD
- Department of Physics & Astronomy, Ohio University , 139 University Terrace, Athens, OH 45701, USA
- Joseph Harry Silber
- ORCiD
- Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, CA 94720, USA
- David Sprayberry
- ORCiD
- NSF NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA
- Gregory Tarlé
- ORCiD
- University of Michigan , 500 S. State Street, Ann Arbor, MI 48109, USA
- Benjamin Alan Weaver
- NSF NOIRLab , 950 N. Cherry Avenue, Tucson, AZ 85719, USA; Department of Physics and Center for Cosmology and Particle Physics , New York University, New York, NY 10003, USA
- Hu Zou
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing, 100012, People’s Republic of China
- DOI
- https://doi.org/10.3847/1538-4357/add5df
- Journal volume & issue
-
Vol. 986,
no. 2
p. 218
Abstract
We measure the luminosity functions (LFs) and stellar mass functions (SMFs) of photometric satellite galaxies around spectroscopically identified isolated central galaxies (ICGs). The photometric satellites are from the DESI Legacy Imaging Surveys (DR9), while the spectroscopic ICGs are selected from the DESI Year-1 BGS sample. We can measure satellite LFs down to r -band absolute magnitudes of M _r _,sat ∼ −7, around ICGs as small as $7.1\lt {{\rm{log}}}_{10}{M}_{\ast ,{\rm{ICG}}}/{M}_{\odot }\lt 7.8$ , with the stellar mass of ICGs measured by the DESI F astspecfit pipeline. The satellite SMF can be measured down to ${{\rm{log}}}_{10}{M}_{\ast ,{\rm{sat}}}/{M}_{\odot }\sim 5.5$ . Interestingly, we discover that the faint/low-mass end slopes of satellite LFs/SMFs become steeper with the decrease in the stellar masses of host ICGs, with smaller and nearby host ICGs capable of being used to probe their fainter satellites. The steepest slopes can be −2.298 ± 0.656 and −2.888 ± 0.916 for satellite LF and SMF, respectively. Detailed comparisons are performed between the satellite LFs around ICGs selected from DESI BGS or from the SDSS NYU-VAGC spectroscopic Main galaxies over $7.1\lt {{\rm{log}}}_{10}{M}_{\ast ,{\rm{ICG}}}/{M}_{\odot }\lt 11.7$ , showing reasonable agreement, but we show that differences between DESI and SDSS stellar masses for ICGs play a role to affect the results. We also compare measurements based on DESI F astspecfit and C igale stellar masses used to bin ICGs, with the latter including the modeling of active galactic nuclei based on Wide-field Infrared Survey Explorer photometry, and we find good agreements in the measured satellite LFs by using either of the DESI stellar mass catalogs.
Keywords
