The Astrophysical Journal (Jan 2024)
The Ultraviolet Luminosity Function at 0.6 < z < 1 from UVCANDELS
- Lei Sun,
- Xin Wang,
- Harry I. Teplitz,
- Vihang Mehta,
- Anahita Alavi,
- Marc Rafelski,
- Rogier A. Windhorst,
- Claudia Scarlata,
- Jonathan P. Gardner,
- Brent M. Smith,
- Ben Sunnquist,
- Laura Prichard,
- Yingjie Cheng,
- Norman Grogin,
- Nimish P. Hathi,
- Matthew Hayes,
- Anton M. Koekemoer,
- Bahram Mobasher,
- Kalina V. Nedkova,
- Robert O’Connell,
- Brant Robertson,
- Sina Taamoli,
- L. Y. Aaron Yung,
- Gabriel Brammer,
- James Colbert,
- Christopher Conselice,
- Eric Gawiser,
- Yicheng Guo,
- Rolf A. Jansen,
- Zhiyuan Ji,
- Ray A. Lucas,
- Michael Rutkowski,
- Brian Siana,
- Eros Vanzella,
- Teresa Ashcraft,
- Micaela Bagley,
- Ivano Baronchelli,
- Guillermo Barro,
- Alex Blanche,
- Adam Broussard,
- Timothy Carleton,
- Nima Chartab,
- Alex Codoreanu,
- Seth Cohen,
- Y. Sophia Dai,
- Behnam Darvish,
- Romeel Davé,
- Laura DeGroot,
- Duilia De Mello,
- Mark Dickinson,
- Najmeh Emami,
- Henry Ferguson,
- Leonardo Ferreira,
- Keely Finkelstein,
- Steven Finkelstein,
- Timothy Gburek,
- Mauro Giavalisco,
- Andrea Grazian,
- Caryl Gronwall,
- Shoubaneh Hemmati,
- Justin Howell,
- Kartheik Iyer,
- Sugata Kaviraj,
- Peter Kurczynski,
- Ilin Lazar,
- John MacKenty,
- Kameswara Bharadwaj Mantha,
- Alec Martin,
- Garreth Martin,
- Tyler McCabe,
- Charlotte Olsen,
- Lillian Otteson,
- Swara Ravindranath,
- Caleb Redshaw,
- Zahra Sattari,
- Emmaris Soto,
- Bonnabelle Zabelle,
- the UVCANDELS team
Affiliations
- Lei Sun
- ORCiD
- School of Astronomy and Space Science, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China ; [email protected]
- Xin Wang
- ORCiD
- School of Astronomy and Space Science, University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China ; [email protected]; Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206, People's Republic of China ; [email protected]; National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China
- Harry I. Teplitz
- ORCiD
- IPAC, Mail Code 314-6, California Institute of Technology , 1200 E. California Boulevard, Pasadena CA, 91125, USA
- Vihang Mehta
- ORCiD
- IPAC, Mail Code 314-6, California Institute of Technology , 1200 E. California Boulevard, Pasadena CA, 91125, USA
- Anahita Alavi
- ORCiD
- IPAC, Mail Code 314-6, California Institute of Technology , 1200 E. California Boulevard, Pasadena CA, 91125, USA
- Marc Rafelski
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA; Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Rogier A. Windhorst
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Claudia Scarlata
- ORCiD
- Minnesota Institute of Astrophysics and School of Physics and Astronomy, University of Minnesota , Minneapolis, MN 55455, USA
- Jonathan P. Gardner
- ORCiD
- Astrophysics Science Division, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
- Brent M. Smith
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Ben Sunnquist
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Laura Prichard
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Yingjie Cheng
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Norman Grogin
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Nimish P. Hathi
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Matthew Hayes
- ORCiD
- Stockholm University , Department of Astronomy and Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, SE-10691, Stockholm, Sweden
- Anton M. Koekemoer
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Bahram Mobasher
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, Riverside, CA 92521, USA
- Kalina V. Nedkova
- ORCiD
- Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Robert O’Connell
- ORCiD
- Department of Astronomy, University of Virginia , Charlottesville, VA 22904, USA
- Brant Robertson
- ORCiD
- Department of Astronomy and Astrophysics, University of California , Santa Cruz, Santa Cruz, CA 95064, USA
- Sina Taamoli
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, Riverside, CA 92521, USA
- L. Y. Aaron Yung
- ORCiD
- Astrophysics Science Division, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
- Gabriel Brammer
- ORCiD
- Cosmic Dawn Center (DAWN) , Copenhagen, Denmark; Niels Bohr Institute, University of Copenhagen , Jagtvej 128, DK-2200 Copenhagen N, Denmark
- James Colbert
- ORCiD
- IPAC, Mail Code 314-6, California Institute of Technology , 1200 E. California Boulevard, Pasadena CA, 91125, USA
- Christopher Conselice
- ORCiD
- School of Physics and Astronomy, The University of Nottingham , University Park, Nottingham, NG7 2RD, UK
- Eric Gawiser
- ORCiD
- Department of Physics and Astronomy, Rutgers, The State University of New Jersey , Piscataway, NJ 08854, USA
- Yicheng Guo
- ORCiD
- Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA
- Rolf A. Jansen
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Zhiyuan Ji
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Ray A. Lucas
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Michael Rutkowski
- ORCiD
- Department of Physics and Astronomy, Minnesota State University Mankato , Mankato, MN 56001, USA
- Brian Siana
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, Riverside, CA 92521, USA
- Eros Vanzella
- ORCiD
- INAF—OAS, Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , via Gobetti 93/3, I-40129 Bologna, Italy
- Teresa Ashcraft
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Micaela Bagley
- ORCiD
- Department of Astronomy, The University of Texas at Austin , Austin, TX 78712, USA
- Ivano Baronchelli
- ORCiD
- INAF-Osservatorio Astronomico di Padova , Vicolo dell’Osservatorio 5, I-35122, Padova, Italy; Dipartimento di Fisica e Astronomia, Università di Padova , Vicolo Osservatorio, 3, I-35122 Padova, Italy
- Guillermo Barro
- ORCiD
- Department of Physics, University of the Pacific , Stockton, CA 95211, USA
- Alex Blanche
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Adam Broussard
- ORCiD
- Department of Physics and Astronomy, Rutgers, The State University of New Jersey , Piscataway, NJ 08854, USA
- Timothy Carleton
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Nima Chartab
- ORCiD
- Observatories of the Carnegie Institution of Washington , Pasadena, CA 91101, US
- Alex Codoreanu
- ORCiD
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology , Hawthorn, VIC 3122, Australia
- Seth Cohen
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Y. Sophia Dai
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, People's Republic of China
- Behnam Darvish
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, Riverside, CA 92521, USA
- Romeel Davé
- ORCiD
- Institute for Astronomy, University of Edinburgh , Edinburgh, EH9 3HJ, UK
- Laura DeGroot
- ORCiD
- College of Wooster , Wooster, OH 44691, USA
- Duilia De Mello
- Department of Physics, The Catholic University of America , Washington, DC 20064, USA
- Mark Dickinson
- ORCiD
- NSF’s NOIRLab , Tucson, AZ 85719, USA
- Najmeh Emami
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, Riverside, CA 92521, USA
- Henry Ferguson
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Leonardo Ferreira
- ORCiD
- Centre for Astronomy and Particle Physics, School of Physics and Astronomy, University of Nottingham , NG7 2RD, UK
- Keely Finkelstein
- ORCiD
- Department of Astronomy, The University of Texas at Austin , Austin, TX 78712, USA
- Steven Finkelstein
- ORCiD
- Department of Astronomy, The University of Texas at Austin , Austin, TX 78712, USA
- Timothy Gburek
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, Riverside, CA 92521, USA
- Mauro Giavalisco
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Andrea Grazian
- ORCiD
- INAF-Osservatorio Astronomico di Padova , Vicolo dell’Osservatorio 5, I-35122, Padova, Italy
- Caryl Gronwall
- ORCiD
- Department of Astronomy & Astrophysics, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Gravitation and the Cosmos, The Pennsylvania State University , University Park, PA 16802, USA
- Shoubaneh Hemmati
- ORCiD
- IPAC, Mail Code 314-6, California Institute of Technology , 1200 E. California Boulevard, Pasadena CA, 91125, USA
- Justin Howell
- ORCiD
- IPAC, Mail Code 314-6, California Institute of Technology , 1200 E. California Boulevard, Pasadena CA, 91125, USA
- Kartheik Iyer
- ORCiD
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto , 50 St George Street, Toronto, ON, M5S 3H4, Canada
- Sugata Kaviraj
- ORCiD
- Centre for Astrophysics Research, Department of Physics, Astronomy and Mathematics, University of Hertfordshire , Hatfield, AL10 9AB, UK
- Peter Kurczynski
- ORCiD
- Astrophysics Science Division, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
- Ilin Lazar
- ORCiD
- Department of Galaxies and Cosmology, Max Planck Institute for Astronomy , Königstuhl 17, 69117 Heidelberg, Germany
- John MacKenty
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Kameswara Bharadwaj Mantha
- ORCiD
- Minnesota Institute of Astrophysics and School of Physics and Astronomy, University of Minnesota , Minneapolis, MN 55455, USA
- Alec Martin
- ORCiD
- Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA
- Garreth Martin
- ORCiD
- Korea Astronomy and Space Science Institute , Yuseong-gu, Daejeon 34055, Republic of Korea; Steward Observatory, University of Arizona , Tucson, AZ 85719, USA
- Tyler McCabe
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Charlotte Olsen
- ORCiD
- Department of Physics and Astronomy, Rutgers, The State University of New Jersey , Piscataway, NJ 08854, USA
- Lillian Otteson
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Swara Ravindranath
- ORCiD
- Space Telescope Science Institute , Baltimore, MD 21218, USA
- Caleb Redshaw
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Zahra Sattari
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, Riverside, CA 92521, USA
- Emmaris Soto
- ORCiD
- Computational Physics , Inc., Springfield, VA 22151, USA
- Bonnabelle Zabelle
- ORCiD
- Minnesota Institute of Astrophysics and School of Physics and Astronomy, University of Minnesota , Minneapolis, MN 55455, USA
- the UVCANDELS team
- DOI
- https://doi.org/10.3847/1538-4357/ad5540
- Journal volume & issue
-
Vol. 972,
no. 1
p. 8
Abstract
UVCANDELS is a Hubble Space Telescope Cycle-26 Treasury Program awarded 164 orbits of primary ultraviolet (UV) F275W imaging and coordinated parallel optical F435W imaging in four CANDELS fields—GOODS-N, GOODS-S, EGS, and COSMOS—covering a total area of ∼426 arcmin ^2 . This is ∼2.7 times larger than the area covered by previous deep-field space UV data combined, reaching a depth of about 27 and 28 ABmag (5 σ in 0.”2 apertures) for F275W and F435W, respectively. Along with new photometric catalogs, we present an analysis of the rest-frame UV luminosity function (LF), relying on our UV-optimized aperture photometry method, yielding a factor of 1.5 increase over H-isophot aperture photometry in the signal-to-noise ratios of galaxies in our F275W imaging. Using well-tested photometric redshift measurements, we identify 5810 galaxies at redshifts 0.6 < z < 1, down to an absolute magnitude of M _UV = −14.2. In order to minimize the effect of uncertainties in estimating the completeness function, especially at the faint end, we restrict our analysis to sources above 30% completeness, which provides a final sample of 4726 galaxies at −21.5 < M _UV < −15.5. We performed a maximum likelihood estimate to derive the best-fit parameters of the UV LF. We report a best-fit faint-end slope of $\alpha =-{1.359}_{-0.041}^{+0.041}$ at z ∼ 0.8. Creating subsamples at z ∼ 0.7 and z ∼ 0.9, we observe a possible evolution of α with redshift. The unobscured UV luminosity density at M _UV < −10 is derived as ${\rho }_{{\rm{U}}{\rm{V}}}={1.339}_{-0.030}^{+0.027}\,(\times {10}^{26}\,{\rm{e}}{\rm{r}}{\rm{g}}\,{{\rm{s}}}^{-1}\,{{\rm{H}}{\rm{z}}}^{-1}\,{{\rm{M}}{\rm{p}}{\rm{c}}}^{-3})$ using our best-fit LF parameters. The new F275W and F435 photometric catalogs from UVCANDELS have been made publicly available on the Barbara A. Mikulski Archive for Space Telescopes.
Keywords
