The Astrophysical Journal (Jan 2024)
The ALMA-CRISTAL Survey: Spatially Resolved Star Formation Activity and Dust Content in 4 < z < 6 Star-forming Galaxies
- Juno Li,
- Elisabete Da Cunha,
- Jorge González-López,
- Manuel Aravena,
- Ilse De Looze,
- N. M. Förster Schreiber,
- Rodrigo Herrera-Camus,
- Justin Spilker,
- Ken-ichi Tadaki,
- Loreto Barcos-Munoz,
- Andrew J. Battisti,
- Jack E. Birkin,
- Rebecca A. A. Bowler,
- Rebecca Davies,
- Tanio Díaz-Santos,
- Andrea Ferrara,
- Deanne B. Fisher,
- Jacqueline Hodge,
- Ryota Ikeda,
- Meghana Killi,
- Lilian Lee,
- Daizhong Liu,
- Dieter Lutz,
- Ikki Mitsuhashi,
- Thorsten Naab,
- Ana Posses,
- Monica Relaño,
- Manuel Solimano,
- Hannah Übler,
- Stefan Anthony van der Giessen,
- Vicente Villanueva
Affiliations
- Juno Li
- ORCiD
- International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , M468, 35 Stirling Highway, Crawley, WA 6009, Australia; International Space Centre (ISC), The University of Western Australia , M468, 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Center of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
- Elisabete Da Cunha
- ORCiD
- International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , M468, 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Center of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
- Jorge González-López
- ORCiD
- Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile , Santiago 7820436, Chile; Las Campanas Observatory, Carnegie Institution of Washington , Raúl Bitrán 1200, La Serena, Chile
- Manuel Aravena
- ORCiD
- Instituto de Estudios Astrofísicos, Facultad de Ingeniería y Ciencias, Universidad Diego Portales , Av. Ejército 441, Santiago, Chile
- Ilse De Looze
- ORCiD
- Sterrenkundig Observatorium, Ghent University , Krijgslaan 281 S9, B-9000 Ghent, Belgium
- N. M. Förster Schreiber
- ORCiD
- Max-Planck-Institut für Extraterrestische Physik (MPE) , Giessenbachstr., 85748, Garching, Germany
- Rodrigo Herrera-Camus
- ORCiD
- Departamento de Astronomía, Universidad de Concepción , Barrio Universitario, Concepción, Chile
- Justin Spilker
- ORCiD
- Department of Physics and Astronomy and George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University , College Station, TX, USA
- Ken-ichi Tadaki
- ORCiD
- Faculty of Engineering, Hokkai-Gakuen University , Toyohira-ku, Sapporo 062-8605, Japan
- Loreto Barcos-Munoz
- ORCiD
- National Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA; Department of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA 22903, USA
- Andrew J. Battisti
- ORCiD
- International Centre for Radio Astronomy Research (ICRAR), The University of Western Australia , M468, 35 Stirling Highway, Crawley, WA 6009, Australia; ARC Center of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia; Research School of Astronomy and Astrophysics, Australian National University , Cotter Road, Weston Creek, ACT 2611, Australia
- Jack E. Birkin
- ORCiD
- Department of Physics and Astronomy and George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University , College Station, TX, USA
- Rebecca A. A. Bowler
- ORCiD
- Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, School of Natural Sciences, The University of Manchester , Manchester, M13 9PL, UK
- Rebecca Davies
- ORCiD
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology , P.O. Box 218, Hawthorn, VIC, 3122, Australia
- Tanio Díaz-Santos
- ORCiD
- Institute of Astrophysics, Foundation for Research and Technology-Hellas (FORTH) , Heraklion, 70013, Greece; School of Sciences, European University Cyprus , Diogenes Street, Engomi, 1516 Nicosia, Cyprus
- Andrea Ferrara
- ORCiD
- Scuola Normale Superiore , Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Deanne B. Fisher
- ORCiD
- ARC Center of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia; Centre for Astrophysics and Supercomputing, Swinburne University of Technology , P.O. Box 218, Hawthorn, VIC, 3122, Australia
- Jacqueline Hodge
- ORCiD
- Leiden Observatory, Leiden University , NL-2300 RA Leiden, The Netherlands
- Ryota Ikeda
- ORCiD
- Department of Astronomy, School of Science, SOKENDAI (The Graduate University for Advanced Studies) , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Meghana Killi
- ORCiD
- Instituto de Estudios Astrofísicos, Facultad de Ingeniería y Ciencias, Universidad Diego Portales , Av. Ejército 441, Santiago, Chile
- Lilian Lee
- ORCiD
- Max-Planck-Institut für Extraterrestische Physik (MPE) , Giessenbachstr., 85748, Garching, Germany
- Daizhong Liu
- ORCiD
- Max-Planck-Institut für Extraterrestische Physik (MPE) , Giessenbachstr., 85748, Garching, Germany; Purple Mountain Observatory, Chinese Academy of Sciences , 10 Yuanhua Road, Nanjing 210023, People's Republic of China
- Dieter Lutz
- ORCiD
- Max-Planck-Institut für Extraterrestische Physik (MPE) , Giessenbachstr., 85748, Garching, Germany
- Ikki Mitsuhashi
- ORCiD
- National Astronomical Observatory of Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Thorsten Naab
- ORCiD
- Max-Planck Institute for Astrophysics , Karl Schwarzschildstrasse 1, 85748, Garching, Germany
- Ana Posses
- Instituto de Estudios Astrofísicos, Facultad de Ingeniería y Ciencias, Universidad Diego Portales , Av. Ejército 441, Santiago, Chile
- Monica Relaño
- ORCiD
- Dept. Física Teórica y del Cosmos, Universidad de Granada , Spain; Instituto Universitario Carlos I de Física Teórica y Computacional, Universidad de Granada , 18071, Granada, Spain
- Manuel Solimano
- ORCiD
- Instituto de Estudios Astrofísicos, Facultad de Ingeniería y Ciencias, Universidad Diego Portales , Av. Ejército 441, Santiago, Chile
- Hannah Übler
- ORCiD
- Kavli Institute for Cosmology, University of Cambridge , Madingley Road, Cambridge CB3 0HA, UK; Cavendish Laboratory, University of Cambridge , 19 JJ Thomson Avenue, Cambridge, CB3 0HA, UK
- Stefan Anthony van der Giessen
- ORCiD
- Sterrenkundig Observatorium, Ghent University , Krijgslaan 281 S9, B-9000 Ghent, Belgium; Dept. Física Teórica y del Cosmos, Universidad de Granada , Spain
- Vicente Villanueva
- ORCiD
- Departamento de Astronomía, Universidad de Concepción , Barrio Universitario, Concepción, Chile
- DOI
- https://doi.org/10.3847/1538-4357/ad7fee
- Journal volume & issue
-
Vol. 976,
no. 1
p. 70
Abstract
Using a combination of Hubble Space Telescope (HST), JWST, and Atacama Large Millimeter/submillimeter Array (ALMA) data, we perform spatially resolved spectral energy distributions (SED) fitting of fourteen 4 < z < 6 ultraviolet (UV)-selected main-sequence galaxies targeted by the ALMA Large Program [C ii ] Resolved ISM in Star-forming Galaxies. We consistently model the emission from stars and dust in ∼0.5–1 kpc spatial bins to obtain maps of their physical properties. We find no offsets between the stellar masses ( M _* ) and star formation rates (SFRs) derived from their global emission and those from adding up the values in our spatial bins, suggesting there is no bias of outshining by young stars on the derived global properties. We show that ALMA observations are important to derive robust parameter maps because they reduce the uncertainties in L _dust (hence, A _V and SFR). Using these maps, we explore the resolved star-forming main sequence for z ∼ 5 galaxies, finding that this relation persists in typical star-forming galaxies in the early Universe. We find less obscured star formation where the M _* (and SFR) surface densities are highest, typically in the central regions, contrary to the global relation between these parameters. We speculate this could be caused by feedback driving gas and dust out of these regions. However, more observations of IR luminosities with ALMA are needed to verify this. Finally, we test empirical SFR prescriptions based on the UV+IR and [C ii ] line luminosity, finding they work well at the scales probed (approximately kiloparsec). Our work demonstrates the usefulness of joint HST-, JWST-, and ALMA-resolved SED modeling analyses at high redshift.
Keywords
- Galaxies
- High-redshift galaxies
- Galaxy evolution
- Galaxy stellar content
- Interstellar medium
- Star formation
