The Astrophysical Journal (Jan 2023)
UV-bright Star-forming Clumps and Their Host Galaxies in UVCANDELS at 0.5 ≤ z ≤ 1
- Alec Martin,
- Yicheng Guo,
- Xin Wang,
- Anton M. Koekemoer,
- Marc Rafelski,
- Harry I. Teplitz,
- Rogier A. Windhorst,
- Anahita Alavi,
- Norman A. Grogin,
- Laura Prichard,
- Ben Sunnquist,
- Daniel Ceverino,
- Nima Chartab,
- Christopher J. Conselice,
- Y. Sophia Dai,
- Avishai Dekel,
- Jonathan P. Gardner,
- Eric Gawiser,
- Nimish P. Hathi,
- Matthew J. Hayes,
- Rolf A. Jansen,
- Zhiyuan Ji,
- David C. Koo,
- Ray A. Lucas,
- Nir Mandelker,
- Vihang Mehta,
- Bahram Mobasher,
- Kalina V. Nedkova,
- Joel Primack,
- Swara Ravindranath,
- Brant E. Robertson,
- Michael J. Rutkowski,
- Zahra Sattari,
- Emmaris Soto,
- L. Y. Aaron Yung
Affiliations
- Alec Martin
- ORCiD
- Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA ; [email protected]
- Yicheng Guo
- ORCiD
- Department of Physics and Astronomy, University of Missouri , Columbia, MO 65211, USA ; [email protected]
- Xin Wang
- ORCiD
- School of Astronomy and Space Science, University of Chinese Academy of Sciences (UCAS) , Beijing 100049, People's Republic of China; National Astronomical Observatories, Chinese Academy of Sciences , Beijing 100101, China; Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206, China
- Anton M. Koekemoer
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA
- Marc Rafelski
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA; Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Harry I. Teplitz
- ORCiD
- IPAC , Mail Code 314-6, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
- Rogier A. Windhorst
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
- Anahita Alavi
- ORCiD
- IPAC , Mail Code 314-6, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
- Norman A. Grogin
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA
- Laura Prichard
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA
- Ben Sunnquist
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA
- Daniel Ceverino
- ORCiD
- Departamento de Fisica Teorica, Modulo 8, Facultad de Ciencias, Universidad Autonoma de Madrid , E-28049 Madrid, Spain; CIAFF, Facultad de Ciencias, Universidad Autonoma de Madrid , E-28049 Madrid, Spain
- Nima Chartab
- ORCiD
- The Observatories of the Carnegie Institution for Science , 813 Santa Barbara St., Pasadena, CA 91101, USA
- Christopher J. Conselice
- ORCiD
- Jodrell Bank Centre for Astrophysics, University of Manchester , Oxford Road, Manchester, M13 9PL, UK
- Y. Sophia Dai
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences South America Center for Astronomy (CASSACA) , 20A Datun Road, Beijing 100012, People's Republic of China
- Avishai Dekel
- ORCiD
- Racah Institute of Physics, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
- Jonathan P. Gardner
- ORCiD
- Astrophysics Science Division, NASA Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
- Eric Gawiser
- ORCiD
- Department of Physics and Astronomy, Rutgers University , Piscataway, NJ 08854, USA
- Nimish P. Hathi
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA
- Matthew J. Hayes
- ORCiD
- Department of Astronomy and Oskar Klein Centre for Cosmoparticle Physics, Stockholm University , AlbaNova University Centre, SE-10691, Stockholm, Sweden
- Rolf A. Jansen
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
- Zhiyuan Ji
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- David C. Koo
- ORCiD
- UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California , Santa Cruz, CA, USA; Department of Astronomy and Astrophysics, University of California , Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Ray A. Lucas
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA
- Nir Mandelker
- ORCiD
- Racah Institute of Physics, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
- Vihang Mehta
- ORCiD
- IPAC , Mail Code 314-6, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
- Bahram Mobasher
- Department of Physics and Astronomy, University of California , Riverside, 900 University Ave., Riverside, CA 92521, USA
- Kalina V. Nedkova
- ORCiD
- Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Joel Primack
- ORCiD
- Department of Physics, University of California , Santa Cruz, CA 95064, USA
- Swara Ravindranath
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Dr., Baltimore, MD 21218, USA
- Brant E. Robertson
- ORCiD
- Department of Astronomy and Astrophysics, University of California , Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
- Michael J. Rutkowski
- ORCiD
- Department of Physics and Astronomy, Minnesota State University , Mankato, MN 56001, USA
- Zahra Sattari
- ORCiD
- The Observatories of the Carnegie Institution for Science , 813 Santa Barbara St., Pasadena, CA 91101, USA; Department of Physics and Astronomy, University of California , Riverside, 900 University Ave., Riverside, CA 92521, USA
- Emmaris Soto
- ORCiD
- Computational Physics, Inc. , Springfield, VA 22151, USA
- L. Y. Aaron Yung
- ORCiD
- Astrophysics Science Division, NASA Goddard Space Flight Center , 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
- DOI
- https://doi.org/10.3847/1538-4357/aced3e
- Journal volume & issue
-
Vol. 955,
no. 2
p. 106
Abstract
Giant star-forming clumps are a prominent feature of star-forming galaxies (SFGs) and contain important clues on galaxy formation and evolution. However, the basic demographics of clumps and their host galaxies remain uncertain. Using the Hubble Space Telescope/Wide Field Camera 3 F275W images from the Ultraviolet Imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey, we detect and analyze giant star-forming clumps in galaxies at 0.5 ≤ z ≤ 1, connecting two epochs when clumps are common (at cosmic high noon, z ∼ 2) and rare (in the local Universe). We construct a clump sample whose rest-frame 1600 Å luminosity is 3 times higher than the most luminous local H ii regions ( M _UV ≤ −16 AB). In our sample, 35% ± 3% of low-mass galaxies (log[ M _∗ / M _⊙ ] 10.5) galaxies, in agreement with previous studies. When compared to similar-mass nonclumpy SFGs, low- and intermediate-mass clumpy SFGs tend to have higher star formation rates (SFRs) and bluer rest-frame U − V colors, while high-mass clumpy SFGs tend to be larger than nonclumpy SFGs. However, clumpy and nonclumpy SFGs have similar Sérsic index, indicating a similar underlying density profile. Furthermore, we investigate how the UV luminosity of star-forming regions correlates with the physical properties of host galaxies. On average, more luminous star-forming regions reside in more luminous, smaller, and/or higher specific SFR galaxies and are found closer to their hosts’ galactic centers.
Keywords
- Galaxy evolution
- Galaxy formation
- Starburst galaxies
- Star forming regions
- Galaxy structure
- Galaxy properties
