Uncovering the stellar structure of the dusty star-forming galaxy GN20 at z=4.055 with MIRI/JWST

被引：16

作者：

Colina, L. ^{[1
]}

Gomez, A. Crespo ^{[1
]}

Alvarez-Marquez, J. ^{[1
]}

Bik, A. ^{[2
]}

Walter, F. ^{[3
]}

Boogaard, L. ^{[3
]}

Labiano, A. ^{[1
,4
]}

Peissker, F. ^{[5
]}

Perez-Gonzalez, P. ^{[1
]}

Ostlin, G. ^{[2
]}

Greve, T. R. ^{[6
,7
,8
]}

Norgaard-Nielsen, H. U. ^{[6
]}

Wright, G. ^{[9
]}

Alonso-Herrero, A. ^{[10
]}

Azollini, R. ^{[1
,11
]}

Caputi, K. I. ^{[7
,12
]}

Dicken, D. ^{[9
]}

Garcia-Marin, M. ^{[13
]}

Hjorth, J. ^{[14
]}

Ilbert, O. ^{[15
]}

Kendrew, S. ^{[13
]}

Pye, J. P. ^{[16
]}

Tikkanen, T. ^{[16
]}

van der Werf, P. ^{[17
]}

Costantin, L. ^{[1
]}

Iani, E. ^{[12
]}

Gillman, S. ^{[6
,7
]}

Jermann, I. ^{[6
,7
]}

Langeroodi, D. ^{[14
]}

Moutard, T. ^{[15
]}

Rinaldi, P. ^{[12
]}

Topinka, M. ^{[11
]}

van Dishoeck, E. F. ^{[17
]}

Guedel, M. ^{[3
,19
,20
]}

Henning, Th. ^{[3
]}

Lagage, P. O. ^{[21
]}

Ray, T. ^{[11
]}

Vandenbussche, B. ^{[18
,22
]}

机构：

[1] CSIC INTA, Ctr Astrobiol CAB, Ctra Ajalvir km 4, Madrid 28850, Spain

[2] Stockholm Univ, AlbaNova Univ Ctr, Oscar Klein Ctr, Dept Astron, S-10691 Stockholm, Sweden

[3] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[4] ESAC, Telespazio UK European Space Agcy, Camino Bajo del Castillo S-N, Villanueva De La Canada 28692, Spain

[5] Univ Cologne, Phys Inst 1, Zulpicher Str 77, D-50937 Cologne, Germany

[6] Tech Univ Denmark, DTU Space, Elektrovej 327, DK-2800 Lyngby, Denmark

[7] Cosm Dawn Ctr DAWN, Copenhagen, Denmark

[8] UCL, Dept Phys & Astron, Gower Pl, London WC1E 6BT, England

[9] Royal Observ Edinburgh, UK Astron Technol Ctr, Blackford Hill, Edinburgh EH9 3HJ, Scotland

[10] CSIC INTA, Ctr Astrobiol CAB, Camino Viejo del Castillo S-N, Madrid 28692, Spain

[11] Dublin Inst Adv Studies, Astron & Astrophys Sect, 31 Fitzwilliam Pl, Dublin 2, Ireland

[12] Univ Groningen, Kapteyn Astron Inst, POB 800, NL-9700 AV Groningen, Netherlands

[13] European Space Agcy, Space Telescope Sci Inst, Baltimore, MD USA

[14] Univ Copenhagen, Niels Bohr Inst, DARK, Jagtvej 128, DK-2200 Copenhagen, Denmark

[15] Aix Marseille Univ, CNRS, LAM Lab Astrophys Marseille, UMR 7326, F-13388 Marseille, France

[16] Univ Leicester, Space Res Ctr, Sch Phys & Astron, Space Pk Leicester,92 Corp Rd, Leicester LE4 5SP, England

[17] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands

[18] Univ Durham, Ctr Extragalact Astron, South Rd, Durham DH1 3LE, England

[19] Univ Vienna, Dept Astrophys, Turkenschanzstr 17, A-1180 Vienna, Austria

[20] Swiss Fed Inst Technol, Inst Particle Phys & Astrophys, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland

[21] Univ Paris Saclay, Univ Paris Diderot, Sorbonne Paris Cite, AIM,CEA,CNRS, F-91191 Gif Sur Yvette, France

[22] Katholieke Univ Leuven, Inst Astron, Celestijnenlaan 200D Bus 2401, B-3001 Leuven, Belgium

来源：

ASTRONOMY & ASTROPHYSICS | 2023年 / 673卷

基金：

英国科学技术设施理事会; 荷兰研究理事会; 美国国家航空航天局; 新加坡国家研究基金会;

关键词：

infrared: galaxies; galaxies: high-redshift; galaxies: individual: GN20; galaxies: starburst; WEBB-SPACE-TELESCOPE; SUBMILLIMETER GALAXIES; MIDINFRARED INSTRUMENT; PROTO-CLUSTER; EVOLUTION; STARBURST; QUIESCENT; MORPHOLOGY; COMPACT; II;

D O I：

10.1051/0004-6361/202346535

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Luminous infrared galaxies at high redshifts (z > 4) include extreme starbursts that build their stellar mass over short periods of time, that is, of 100 Myr or less. These galaxies are considered to be the progenitors of massive quiescent galaxies at intermediate redshifts (z similar to 2) but their stellar structure and buildup is unknown. Here, we present the first spatially resolved near-infrared (rest-frame 1.1 mu m) imaging of GN20, one of the most luminous dusty star-forming galaxies known to date, observed at an epoch when the Universe was only 1.5 Gyr old. The 5.6 mu m image taken with the JWST Mid-Infrared Instrument (MIRI/JWST) shows that GN20 is a very luminous galaxy (M-1.1 mu m,M- AB = 25.01, uncorrected for internal extinction), with a stellar structure composed of a conspicuous central source and an extended envelope. The central source is an unresolved nucleus that carries 9% of the total flux. The nucleus is co-aligned with the peak of the cold dust emission, and offset by 3.9 kpc from the ultraviolet stellar emission. The diffuse stellar envelope is similar in size (3.6 kpc effective radius) to the clumpy CO molecular gas distribution. The centroid of the stellar envelope is offset by 1 kpc from the unresolved nucleus, suggesting GN20 is involved in an interaction or merger event supported by its location as the brightest galaxy in a proto-cluster. Additional faint stellar clumps appear to be associated with some of the UV- and CO-clumps. The stellar size of GN20 is larger by a factor of about 3 to 5 than known spheroids, disks, and irregulars at z similar to 4, while its size and low Sersic index are similar to those measured in dusty, infrared luminous galaxies at redshift 2 of the same mass (similar to 10(11) M-circle dot). GN20 has all the ingredients necessary for evolving into a massive spheroidal quiescent galaxy at intermediate redshift: it is a large, luminous galaxy at z = 4.05 involved in a short and massive starburst centred in the stellar nucleus and extended over the entire galaxy, out to radii of 4 kpc, and likely induced by the interaction or merger with a member of the proto-cluster.

引用

页数：7

共 34 条

[11] A dusty star-forming galaxy at z = 6 revealed by strong gravitational lensing
Zavala, Jorge A.
Montana, Alfredo
Hughes, David H.
Yun, Min S.
Ivison, R. J.
Valiante, Elisabetta
Wilner, David
Spilker, Justin
Aretxaga, Itziar
Eales, Stephen
Avila-Reese, Vladimir
Chavez, Miguel
Cooray, Asantha
Dannerbauer, Helmut
Dunlop, James S.
Dunne, Loretta
Gomez-Ruiz, Arturo I.
Michalowski, Michal J.
Narayanan, Gopal
Nayyeri, Hooshang
Oteo, Ivan
Gonzalez, Daniel Rosa
Sanchez-Arguelles, David
Schloerb, F. Peter
Serjeant, Stephen
Smith, Matthew W. L.
Terlevich, Elena
Vega, Olga
Villalba, Alan
van der Werf, Paul
Wilson, Grant W.
Zeballos, Milagros
NATURE ASTRONOMY, 2018, 2 (01): : 56 - 62
[12] Multiwavelength Characterization of an ACT-selected, Lensed Dusty Star-forming Galaxy at z=2.64
Roberts-Borsani, G. W.
Jimenez-Donaire, M. J.
Dapra, M.
Alatalo, K.
Aretxaga, I.
Alvarez-Marquez, J.
Baker, A. J.
Fujimoto, S.
Gallardo, P. A.
Gralla, M.
Hilton, M.
Hughes, J. P.
Jimenez, C.
Laporte, N.
Marriage, T. A.
Nati, F.
Rivera, J.
Sievers, A.
Weiss, A.
Wilson, G. W.
Wollack, E. J.
Yun, M. S.
ASTROPHYSICAL JOURNAL, 2017, 844 (02)
[13] A dense, solar metallicity ISM in the z=4.2 dusty star-forming galaxy SPT 0418-47
De Breuck, Carlos
Weiss, Axel
Bethermin, Matthieu
Cunningham, Daniel
Apostolovski, Yordanka
Aravena, Manuel
Archipley, Melanie
Chapman, Scott
Chen, Chian-Chou
Fu, Jianyang
Jarugula, Sreevani
Malkan, Matt
Mangian, Amelia C.
Phadke, Kedar A.
Reuter, Cassie A.
Stacey, Gordon
Strandet, Maria
Vieira, Joaquin
Vishwas, Amit
ASTRONOMY & ASTROPHYSICS, 2019, 631
[14] RUBIES: JWST/NIRSpec Resolves Evolutionary Phases of Dusty Star-forming Galaxies at z ∼ 2
Cooper, Olivia R.
Brammer, Gabriel
Heintz, Kasper E.
Toft, Sune
Casey, Caitlin M.
Setton, David J.
de Graaff, Anna
Boogaard, Leindert
Cleri, Nikko J.
Gillman, Steven
Gottumukkala, Rashmi
Greene, Jenny E.
Gullberg, Bitten
Hirschmann, Michaela
Hviding, Raphael E.
Lambrides, Erini
Leja, Joel
Long, Arianna S.
Manning, Sinclaire M.
Maseda, Michael V.
Mcconachie, Ian
Mckinney, Jed
Narayanan, Desika
Price, Sedona H.
Strait, Victoria
Suess, Katherine A.
Weibel, Andrea
Williams, Christina C.
ASTROPHYSICAL JOURNAL, 2025, 982 (02)
[15] J0107a: A Barred Spiral Dusty Star-forming Galaxy at z=2.467
Huang, Shuo
Kawabe, Ryohei
Kohno, Kotaro
Saito, Toshiki
Mizukoshi, Shoichiro
Iono, Daisuke
Michiyama, Tomonari
Tamura, Yoichi
Hayward, Christopher C.
Umehata, Hideki
ASTROPHYSICAL JOURNAL LETTERS, 2023, 958 (02)
[16] Combining physical galaxy models with radio observations to constrain the SFRs of high-z dusty star-forming galaxies
Lo Faro, B.
Silva, L.
Franceschini, A.
Miller, N.
Efstathiou, A.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 447 (04) : 3442 - 3466
[17] The structure of massive star-forming galaxies from JWST and ALMA: Dusty, high-redshift disc galaxies
Gillman, Steven
Smail, Ian
Gullberg, Bitten
Swinbank, A. M.
Vijayan, Aswin P.
Lee, Minju
Brammer, Gabe
Dudzeviciute, Ugne
Greve, Thomas R.
Almaini, Omar
Brinch, Malte
Chapman, Scott C.
Chen, Chian-Chou
Ikarashi, Soh
Matsuda, Yuichi
Wang, Wei-Hao
Walter, Fabian
van der Werf, Paul P.
ASTRONOMY & ASTROPHYSICS, 2024, 691
[18] Characterizing elusive, faint dusty star-forming galaxies: a lensed, optically undetected ALMA galaxy at z ∼ 3.3
Santini, P.
Castellano, M.
Fontana, A.
Merlin, E.
Maiolino, R.
Mason, C.
Mignano, A.
Pilo, S.
Amorin, R.
Berta, S.
Bourne, N.
Calura, F.
Daddi, E.
Elbaz, D.
Grazian, A.
Magliocchetti, M.
Michalowski, M. J.
Pentericci, L.
Pozzi, F.
Rodighiero, G.
Schreiber, C.
Valiante, R.
ASTRONOMY & ASTROPHYSICS, 2016, 596
[19] JWST and ALMA Imaging of Dust-obscured, Massive Substructures in a Typical z ∼ 3 Star-forming Disk Galaxy
Rujopakarn, Wiphu
Williams, Christina C.
Daddi, Emanuele
Schramm, Malte
Sun, Fengwu
Alberts, Stacey
Rieke, George H.
Tan, Qing-Hua
Tacchella, Sandro
Giavalisco, Mauro
Silverman, John D.
ASTROPHYSICAL JOURNAL LETTERS, 2023, 948 (01)
[20] Planck's dusty GEMS V. Molecular wind and clump stability in a strongly lensed star-forming galaxy at z=2.2
Canameras, R.
Nesvadba, N. P. H.
Limousin, M.
Dole, H.
Kneissl, R.
Koenig, S.
Le Floc'h, E.
Petitpas, G.
Scott, D.
ASTRONOMY & ASTROPHYSICS, 2018, 620

← 1 2 3 4 →