The Astrophysical Journal (Jan 2024)
The Extended [C ii] under Construction? Observation of the Brightest High-z Lensed Star-forming Galaxy at z = 6.2
- Yoshinobu Fudamoto,
- Akio K. Inoue,
- Dan Coe,
- Brian Welch,
- Ana Acebron,
- Massimo Ricotti,
- Nir Mandelker,
- Rogier A. Windhorst,
- Xinfeng Xu,
- Yuma Sugahara,
- Franz E. Bauer,
- Maruša Bradač,
- Larry D. Bradley,
- Jose M. Diego,
- Michael Florian,
- Brenda Frye,
- Seiji Fujimoto,
- Takuya Hashimoto,
- Alaina Henry,
- Guillaume Mahler,
- Pascal A. Oesch,
- Swara Ravindranath,
- Jane Rigby,
- Keren Sharon,
- Victoria Strait,
- Yoichi Tamura,
- Michele Trenti,
- Eros Vanzella,
- Erik Zackrisson,
- Adi Zitrin
Affiliations
- Yoshinobu Fudamoto
- ORCiD
- Center for Frontier Science, Chiba University , 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan ; [email protected]; Waseda Research Institute for Science and Engineering, Faculty of Science and Engineering, Waseda University , 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan; National Astronomical Observatory of Japan , 2-21-1, Osawa, Mitaka, Tokyo, Japan
- Akio K. Inoue
- ORCiD
- Waseda Research Institute for Science and Engineering, Faculty of Science and Engineering, Waseda University , 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan; Department of Physics, School of Advanced Science and Engineering, Faculty of Science and Engineering, Waseda University , 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
- Dan Coe
- ORCiD
- Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA; Association of Universities for Research in Astronomy (AURA) for the European Space Agency (ESA) , STScI, Baltimore, MD, USA; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA
- Brian Welch
- ORCiD
- Department of Astronomy, University of Maryland , College Park, MD 20742, USA; Observational Cosmology Lab, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA; Center for Research and Exploration in Space Science and Technology , NASA/GSFC, Greenbelt, MD 20771, USA
- Ana Acebron
- ORCiD
- Dipartimento di Fisica, Università degli Studi di Milano , Via Celoria 16, I-20133 Milano, Italy; INAF—IASF Milano , via A. Corti 12, I-20133 Milano, Italy
- Massimo Ricotti
- ORCiD
- Department of Astronomy, University of Maryland , College Park, MD 20742, USA
- Nir Mandelker
- ORCiD
- Centre for Astrophysics and Planetary Science, Racah Institute of Physics, The Hebrew University , Jerusalem, 91904, Israel
- Rogier A. Windhorst
- ORCiD
- School of Earth and Space Exploration, Arizona State University , Tempe, AZ 85287-1404, USA
- Xinfeng Xu
- ORCiD
- Center for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Yuma Sugahara
- ORCiD
- Waseda Research Institute for Science and Engineering, Faculty of Science and Engineering, Waseda University , 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan; National Astronomical Observatory of Japan , 2-21-1, Osawa, Mitaka, Tokyo, Japan
- Franz E. Bauer
- ORCiD
- Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile , Campus San Joaquín, Av. Vicuña Mackenna 4860, Macul Santiago, 7820436, Chile; Centro de Astroingeniería, Facultad de Física, Pontificia Universidad Católica de Chile , Campus San Joaquín, Av. Vicuña Mackenna 4860, Macul Santiago, 7820436, Chile; Millennium Institute of Astrophysics , Nuncio Monseñor Sótero Sanz 100, Of 104, Providencia, Santiago, Chile
- Maruša Bradač
- ORCiD
- University of Ljubljana , Department of Mathematics and Physics, Jadranska ulica 19, SI-1000 Ljubljana, Slovenia; Department of Physics and Astronomy, University of California Davis , 1 Shields Avenue, Davis, CA 95616, USA
- Larry D. Bradley
- ORCiD
- Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Jose M. Diego
- ORCiD
- Instituto de Física de Cantabria (CSIC-UC). Avda. Los Castros s/n. E-39005 Santander , Spain
- Michael Florian
- ORCiD
- Department of Astronomy, Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721, USA
- Brenda Frye
- ORCiD
- Department of Astronomy, Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721, USA
- Seiji Fujimoto
- ORCiD
- Department of Astronomy, The University of Texas at Austin , Austin, TX 78712, USA
- Takuya Hashimoto
- ORCiD
- Division of Physics, Faculty of Pure and Applied Sciences, University of Tsukuba ,Tsukuba, Ibaraki 305-8571, Japan; Tomonaga Center for the History of the Universe (TCHoU), Faculty of Pure and Applied Sciences, University of Tsukuba , Tsukuba, Ibaraki 305-8571, Japan
- Alaina Henry
- ORCiD
- Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA; Center for Astrophysical Sciences, Department of Physics and Astronomy, The Johns Hopkins University , 3400 N Charles Street, Baltimore, MD 21218, USA
- Guillaume Mahler
- ORCiD
- Institute for Computational Cosmology, Durham University , South Road, Durham DH1 3LE, UK; Centre for Extragalactic Astronomy, Durham University , South Road, Durham DH1 3LE, UK
- Pascal A. Oesch
- ORCiD
- Departement d’Astronomie, Université de Genéve , 51 Ch. Pegasi, CH-1290 Versoix, Switzerland; Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen , Jagtvej 128, København N, DK-2200, Denmark
- Swara Ravindranath
- ORCiD
- Space Telescope Science Institute (STScI) , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Jane Rigby
- ORCiD
- Observational Cosmology Lab, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
- Keren Sharon
- ORCiD
- Department of Astronomy, University of Michigan , 1085 S. University Avenue, Ann Arbor, MI 48109, USA
- Victoria Strait
- ORCiD
- Cosmic Dawn Center (DAWN) , Copenhagen, Denmark; Niels Bohr Institute, University of Copenhagen , Jagtvej 128, Copenhagen, Denmark
- Yoichi Tamura
- ORCiD
- Department of Physics, Graduate School of Science, Nagoya University , Aichi 464-8602, Japan
- Michele Trenti
- ORCiD
- School of Physics, University of Melbourne , Parkville 3010, VIC, Australia; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , Australia
- Eros Vanzella
- ORCiD
- INAF—OAS, Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , via Gobetti 93/3, I-40129 Bologna, Italy
- Erik Zackrisson
- ORCiD
- Observational Astrophysics, Department of Physics and Astronomy, Uppsala University , Box 516, SE-751 20 Uppsala, Sweden
- Adi Zitrin
- ORCiD
- Physics Department, Ben-Gurion University of the Negev , P.O. Box 653, Be’er-Sheva 84105, Israel
- DOI
- https://doi.org/10.3847/1538-4357/ad0f95
- Journal volume & issue
-
Vol. 961,
no. 1
p. 71
Abstract
We present results of [C ii ] 158 μ m emission line observations, and report the spectroscopic redshift confirmation of a strongly lensed ( μ ∼ 20) star-forming galaxy, MACS0308-zD1 at z = 6.2078 ± 0.0002. The [C ii ] emission line is detected with a signal-to-noise ratio >6 within the rest-frame UV-bright clump of the lensed galaxy (zD1.1) and exhibits multiple velocity components; the narrow [C ii ] has a velocity full width half maximum (FWHM) of 110 ± 20 km s ^−1 , while broader [C ii ] is seen with an FWHM of 230 ± 50 km s ^−1 . The broader [C ii ] component is blueshifted (−80 ± 20 km s ^−1 ) with respect to the narrow [C ii ] component, and has a morphology that extends beyond the UV-bright clump. We find that, while the narrow [C ii ] emission is most likely associated with zD1.1, the broader component is possibly associated with a physically distinct gas component from zD1.1 (e.g., outflowing or inflowing gas). Based on the nondetection of λ _158 _μ _m dust continuum, we find that MACS0308-zD1's star formation activity occurs in a dust-free environment indicated by a strong upper limit of infrared luminosity ≲9 × 10 ^8 L _⊙ . Targeting this strongly lensed faint galaxy for follow-up Atacama Large Millimeter/submillimeter Array and JWST observations will be crucial to characterize the details of typical galaxy growth in the early Universe.
Keywords
