Bound star clusters observed in a lensed galaxy 460 Myr after the Big Bang

被引：37

作者：

Adamo, Angela ^{[1
,2
]}

Bradley, Larry D. ^{[3
]}

Vanzella, Eros ^{[4
]}

Claeyssens, Adelaide ^{[1
,2
]}

Welch, Brian ^{[5
,6
]}

Diego, Jose M. ^{[7
]}

Mahler, Guillaume ^{[8
,9
,10
]}

Oguri, Masamune ^{[11
,12
]}

Sharon, Keren ^{[13
]}

Abdurro'uf ^{[2
,3
,13
]}

Hsiao, Tiger Yu-Yang ^{[3
,14
]}

Xu, Xinfeng ^{[15
,16
]}

Messa, Matteo ^{[4
]}

Lassen, Augusto E. ^{[1
,2
,17
]}

Zackrisson, Erik ^{[18
,19
]}

Brammer, Gabriel ^{[20
,21
]}

Coe, Dan ^{[3
,14
,22
]}

Kokorev, Vasily ^{[23
]}

Ricotti, Massimo ^{[5
]}

Zitrin, Adi ^{[24
]}

Fujimoto, Seiji ^{[25
]}

Inoue, Akio K. ^{[26
,27
]}

Resseguier, Tom ^{[14
]}

Rigby, Jane R. ^{[6
]}

Jimenez-Teja, Yolanda ^{[28
,29
]}

Windhorst, Rogier A. ^{[30
]}

Hashimoto, Takuya ^{[31
,32
]}

Tamura, Yoichi ^{[33
]}

机构：

[1] Stockholm Univ, Astron Dept, Stockholm, Sweden

[2] Oskar Klein Ctr, Stockholm, Sweden

[3] Space Telescope Sci Inst STScI, Baltimore, MD USA

[4] INAF, Osservatorio Astrofis & Sci Spazio Bologna, Bologna, Italy

[5] Univ Maryland, Dept Astron, College Pk, MD USA

[6] NASA Goddard Space Flight Ctr, Astrophys Sci Div, Code 660, Greenbelt, MD USA

[7] CSIC UC, Inst Fis Cantabria, Santander, Spain

[8] STAR Inst, Liege, Belgium

[9] Univ Durham, Ctr Extragalact Astron, Durham, England

[10] Univ Durham, Inst Computat Cosmol, Durham, England

[11] Chiba Univ, Ctr Frontier Sci, Chiba, Japan

[12] Chiba Univ, Grad Sch Sci, Dept Phys, Chiba, Japan

[13] Univ Michigan, Dept Astron, Ann Arbor, MI USA

[14] Johns Hopkins Univ, Ctr Astrophys Sci, Dept Phys & Astron, Baltimore, MD USA

[15] Northwestern Univ, Dept Phys & Astron, Evanston, IL USA

[16] Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL USA

[17] Univ Fed Rio Grande Do Sul, Inst Fis, Dept Astron, Porto Alegre, Brazil

[18] Uppsala Univ, Dept Phys & Astron, Observat Astrophys, Uppsala, Sweden

[19] Swedish Coll Adv Study, Uppsala, Sweden

[20] Cosm Dawn Ctr DAWN, Copenhagen, Denmark

[21] Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark

[22] European Space Agcy ESA, Assoc Univ Res Astron AURA, STScI, Baltimore, MD USA

[23] Univ Groningen, Kapteyn Astron Inst, Groningen, Netherlands

[24] Ben Gurion Univ Negev, Dept Phys, Beer Sheva, Israel

[25] Univ Texas Austin, Dept Astron, Austin, TX USA

[26] Waseda Univ, Fac Sci & Engn, Sch Adv Sci & Engn, Dept Phys, Tokyo, Japan

[27] Waseda Univ, Waseda Res Inst Sci & Engn, Fac Sci & Engn, Tokyo, Japan

[28] Inst Astrofis Andalucia CSIC, Granada, Spain

[29] MCTI, Observ Nacl, Rio De Janeiro, Brazil

[30] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA

[31] Univ Tsukuba, Fac Pure & Appl Sci, Div Phys, Tsukuba, Japan

[32] Univ Tsukuba, Tomonaga Ctr Hist Universe TCHoU, Tsukuba, Japan

[33] Nagoya Univ, Grad Sch Sci, Dept Phys, Nagoya, Japan

来源：

NATURE | 2024年

基金：

美国国家科学基金会; 西班牙国家研究理事会; 以色列科学基金会; 瑞典研究理事会; 欧盟地平线“2020”;

关键词：

GLOBULAR-CLUSTERS; MASS; JWST; I;

D O I：

10.1038/s41586-024-07703-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Cosmic Gems arc is among the brightest and highly magnified galaxies observed at redshift z approximate to 10.2 (ref. 1). However, it is an intrinsically ultraviolet faint galaxy, in the range of those now thought to drive the reionization of the Universe2-4. Hitherto the smallest features resolved in a galaxy at a comparable redshift are between a few hundreds and a few tens of parsecs (pc)5,6. Here we report JWST observations of the Cosmic Gems. The light of the galaxy is resolved into five star clusters located in a region smaller than 70 pc. They exhibit minimal dust attenuation and low metallicity, ages younger than 50 Myr and intrinsic masses of about 106M circle dot. Their lensing-corrected sizes are approximately 1 pc, resulting in stellar surface densities near 105M circle dot pc-2, three orders of magnitude higher than typical young star clusters in the local Universe7. Despite the uncertainties inherent to the lensing model, they are consistent with being gravitationally bound stellar systems, that is, proto-globular clusters. We conclude that star cluster formation and feedback likely contributed to shaping the properties of galaxies during the epoch of reionization. JWST observations of the Cosmic Gems arc resolve the light of an infant galaxy into five gravitationally bound star clusters located in a region smaller than 70 pc.

引用

页码：513 / 516

页数：14

共 64 条

[1] Star Clusters Near and Far Tracing Star Formation Across Cosmic Time [J].

Adamo, Angela ;

Zeidler, Peter ;

Kruijssen, J. M. Diederik ;

Chevance, Melanie ;

Gieles, Mark ;

Calzetti, Daniela ;

Charbonnel, Corinne ;

Zinnecker, Hans ;

Krause, Martin G. H. .

SPACE SCIENCE REVIEWS, 2020, 216 (04)

[2] Planck 2018 results: VIII. Gravitational lensing [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Zotti, G. ;

Delabrouille, J. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fernandez-Cobos, R. ;

Finelli, F. ;

Forastieri, F. ;

Frailis, M. ;

Fraisse, A. A. ;

Franceschi, E. .

ASTRONOMY & ASTROPHYSICS, 2020, 641 (641)

[3] Coalescing black hole binaries from globular clusters: mass distributions and comparison to gravitational wave data from GWTC-3 [J].

Antonini, Fabio ;

Gieles, Mark ;

Dosopoulou, Fani ;

Chattopadhyay, Debatri .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 522 (01) :466-476

[4] Population synthesis of black hole binary mergers from star clusters [J].

Antonini, Fabio ;

Gieles, Mark .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 492 (02) :2936-2954

[5] Most of the photons that reionized the Universe came from dwarf galaxies [J].

Atek, Hakim ;

Labbe, Ivo ;

Furtak, Lukas J. ;

Chemerynska, Iryna ;

Fujimoto, Seiji ;

Setton, David J. ;

Miller, Tim B. ;

Oesch, Pascal ;

Bezanson, Rachel ;

Price, Sedona H. ;

Dayal, Pratika ;

Zitrin, Adi ;

Kokorev, Vasily ;

Weaver, John R. ;

Brammer, Gabriel ;

van Dokkum, Pieter ;

Williams, Christina C. ;

Cutler, Sam E. ;

Feldmann, Robert ;

Fudamoto, Yoshinobu ;

Greene, Jenny E. ;

Leja, Joel ;

Maseda, Michael, V ;

Muzzin, Adam ;

Pan, Richard ;

Papovich, Casey ;

Nelson, Erica J. ;

Nanayakkara, Themiya ;

Stark, Daniel P. ;

Stefanon, Mauro ;

Suess, Katherine A. ;

Wang, Bingjie ;

Whitaker, Katherine E. .

NATURE, 2024, 626 (8001) :975-978

[6] Evidence for a bottom-light initial mass function in massive star clusters [J].

Baumgardt, H. ;

Henault-Brunet, V ;

Dickson, N. ;

Sollima, A. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 521 (03) :3991-4008

[7] In-situ versus accreted Milky Way globular clusters: a new classification method and implications for cluster formation [J].

Belokurov, Vasily ;

Kravtsov, Andrey .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2024, 528 (02) :3198-3216

[8]

Bradley LD, 2024, Arxiv, DOI arXiv:2404.10770

[9]

Brammer Gabriel, 2022, Zenodo

[10] Radii of young star clusters in nearby galaxies [J].

Brown, Gillen ;

Gnedin, Oleg Y. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 508 (04) :5935-5953

← 1 2 3 4 5 6 7 →