Crimson Behemoth: A massive clumpy structure hosting a dusty AGN at z = 4.91

Takumi S. Tanaka; John D. Silverman; Yurina Nakazato; Masafusa Onoue; Kazuhiro Shimasaku; Yoshinobu Fudamoto; Seiji Fujimoto; Xuheng Ding; Andreas L. Faisst; Francesco Valentino; Shuowen Jin; Christopher C. Hayward; Vasily Kokorev; Daniel Ceverino; Boris S. Kalita; Caitlin M. Casey; Zhaoxuan Liu; Aidan Kaminsky; Qinyue Fei; Irham T. Andika; Erini Lambrides; Hollis B. Akins; Jeyhan S. Kartaltepe; Anton M. Koekemoer; Henry Joy McCracken; Jason Rhodes; Brant E. Robertson; Maximilien Franco; Daizhong Liu; Nima Chartab; Steven Gillman; Ghassem Gozaliasl; Michaela Hirschmann; Marc Huertas-Company; Richard Massey; Namrata Roy; Zahra Sattari; Marko Shuntov; Joseph Sterling; Sune Toft; Benny Trakhtenbrot; Naoki Yoshida; Jorge A. Zavala

doi:https://doi.org/10.1093/pasj/psae091

Crimson Behemoth: A massive clumpy structure hosting a dusty AGN at z = 4.91

Takumi S. Tanaka, John D. Silverman, Yurina Nakazato, Masafusa Onoue, Kazuhiro Shimasaku, Yoshinobu Fudamoto, Seiji Fujimoto, Xuheng Ding, Andreas L. Faisst, Francesco Valentino, Shuowen Jin, Christopher C. Hayward, Vasily Kokorev, Daniel Ceverino, Boris S. Kalita, Caitlin M. Casey, Zhaoxuan Liu, Aidan Kaminsky, Qinyue Fei, Irham T. AndikaErini Lambrides, Hollis B. Akins, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Henry Joy McCracken, Jason Rhodes, Brant E. Robertson, Maximilien Franco, Daizhong Liu, Nima Chartab, Steven Gillman, Ghassem Gozaliasl, Michaela Hirschmann, Marc Huertas-Company, Richard Massey, Namrata Roy, Zahra Sattari, Marko Shuntov, Joseph Sterling, Sune Toft, Benny Trakhtenbrot, Naoki Yoshida, Jorge A. Zavala

School of Physics and Astronomy

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

Abstract

The current paradigm for the co-evolution of galaxies and their supermassive black holes postulates that dust-obscured active galactic nuclei (AGNs) represent a transitional phase towards a more luminous and unobscured state. However, our understanding of dusty AGNs and their host galaxies at early cosmic times is inadequate due to observational limitations. Here, we present JWST observations of CID-931, an X-ray-detected AGN at a spectroscopic redshift of z_spec = 4.91. Multiband NIRCam imaging from the COSMOS-Web program reveals an unresolved red core, similar to JWST-discovered dusty AGNs. Strikingly, the red core is surrounded by at least eight massive star-forming clumps spread over 1.6 ≈ 10 kpc, each of which has a stellar mass of 10⁹–10¹⁰ M and a radius of ∼0.1–1 kpc. The whole system amounts to 10¹¹ M in stellar mass, higher than typical star-forming galaxies at the same epoch. In this system, gas inflows and/or complex merger events may trigger clump formation and AGN activity, thus leading to the rapid formation of a massive galaxy hosting a supermassive black hole. Future followup observations will provide new insights into the evolution of the galaxy–black hole relationship during such transitional phases in the early universe.

Original language	English
Pages (from-to)	1323-1335
Number of pages	13
Journal	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
Volume	76
Issue number	6
DOIs	https://doi.org/10.1093/pasj/psae091
State	Published - 1 Dec 2024

Keywords

galaxies: active
galaxies: evolution
galaxies: high-redshift

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

https://doi.org/10.1093/pasj/psae091

Cite this

Tanaka, T. S., Silverman, J. D., Nakazato, Y., Onoue, M., Shimasaku, K., Fudamoto, Y., Fujimoto, S., Ding, X., Faisst, A. L., Valentino, F., Jin, S., Hayward, C. C., Kokorev, V., Ceverino, D., Kalita, B. S., Casey, C. M., Liu, Z., Kaminsky, A., Fei, Q., ... Zavala, J. A. (2024). Crimson Behemoth: A massive clumpy structure hosting a dusty AGN at z = 4.91. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 76(6), 1323-1335. https://doi.org/10.1093/pasj/psae091

@article{e9adfa5fdbcc47baa04e74630e894b0c,

title = "Crimson Behemoth: A massive clumpy structure hosting a dusty AGN at z = 4.91",

abstract = "The current paradigm for the co-evolution of galaxies and their supermassive black holes postulates that dust-obscured active galactic nuclei (AGNs) represent a transitional phase towards a more luminous and unobscured state. However, our understanding of dusty AGNs and their host galaxies at early cosmic times is inadequate due to observational limitations. Here, we present JWST observations of CID-931, an X-ray-detected AGN at a spectroscopic redshift of zspec = 4.91. Multiband NIRCam imaging from the COSMOS-Web program reveals an unresolved red core, similar to JWST-discovered dusty AGNs. Strikingly, the red core is surrounded by at least eight massive star-forming clumps spread over 1.6 ≈ 10 kpc, each of which has a stellar mass of 109–1010 M and a radius of ∼0.1–1 kpc. The whole system amounts to 1011 M in stellar mass, higher than typical star-forming galaxies at the same epoch. In this system, gas inflows and/or complex merger events may trigger clump formation and AGN activity, thus leading to the rapid formation of a massive galaxy hosting a supermassive black hole. Future followup observations will provide new insights into the evolution of the galaxy–black hole relationship during such transitional phases in the early universe.",

keywords = "galaxies: active, galaxies: evolution, galaxies: high-redshift",

author = "Tanaka, {Takumi S.} and Silverman, {John D.} and Yurina Nakazato and Masafusa Onoue and Kazuhiro Shimasaku and Yoshinobu Fudamoto and Seiji Fujimoto and Xuheng Ding and Faisst, {Andreas L.} and Francesco Valentino and Shuowen Jin and Hayward, {Christopher C.} and Vasily Kokorev and Daniel Ceverino and Kalita, {Boris S.} and Casey, {Caitlin M.} and Zhaoxuan Liu and Aidan Kaminsky and Qinyue Fei and Andika, {Irham T.} and Erini Lambrides and Akins, {Hollis B.} and Kartaltepe, {Jeyhan S.} and Koekemoer, {Anton M.} and McCracken, {Henry Joy} and Jason Rhodes and Robertson, {Brant E.} and Maximilien Franco and Daizhong Liu and Nima Chartab and Steven Gillman and Ghassem Gozaliasl and Michaela Hirschmann and Marc Huertas-Company and Richard Massey and Namrata Roy and Zahra Sattari and Marko Shuntov and Joseph Sterling and Sune Toft and Benny Trakhtenbrot and Naoki Yoshida and Zavala, {Jorge A.}",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024. Published by Oxford University Press on behalf of the Astronomical Society of Japan.",

year = "2024",

month = dec,

day = "1",

doi = "https://doi.org/10.1093/pasj/psae091",

language = "الإنجليزيّة",

volume = "76",

pages = "1323--1335",

journal = "PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN",

issn = "0004-6264",

publisher = "Oxford University Press",

number = "6",

}

Tanaka, TS, Silverman, JD, Nakazato, Y, Onoue, M, Shimasaku, K, Fudamoto, Y, Fujimoto, S, Ding, X, Faisst, AL, Valentino, F, Jin, S, Hayward, CC, Kokorev, V, Ceverino, D, Kalita, BS, Casey, CM, Liu, Z, Kaminsky, A, Fei, Q, Andika, IT, Lambrides, E, Akins, HB, Kartaltepe, JS, Koekemoer, AM, McCracken, HJ, Rhodes, J, Robertson, BE, Franco, M, Liu, D, Chartab, N, Gillman, S, Gozaliasl, G, Hirschmann, M, Huertas-Company, M, Massey, R, Roy, N, Sattari, Z, Shuntov, M, Sterling, J, Toft, S, Trakhtenbrot, B, Yoshida, N & Zavala, JA 2024, 'Crimson Behemoth: A massive clumpy structure hosting a dusty AGN at z = 4.91', PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, vol. 76, no. 6, pp. 1323-1335. https://doi.org/10.1093/pasj/psae091

TY - JOUR

T1 - Crimson Behemoth

T2 - A massive clumpy structure hosting a dusty AGN at z = 4.91

AU - Tanaka, Takumi S.

AU - Silverman, John D.

AU - Nakazato, Yurina

AU - Onoue, Masafusa

AU - Shimasaku, Kazuhiro

AU - Fudamoto, Yoshinobu

AU - Fujimoto, Seiji

AU - Ding, Xuheng

AU - Faisst, Andreas L.

AU - Valentino, Francesco

AU - Jin, Shuowen

AU - Hayward, Christopher C.

AU - Kokorev, Vasily

AU - Ceverino, Daniel

AU - Kalita, Boris S.

AU - Casey, Caitlin M.

AU - Liu, Zhaoxuan

AU - Kaminsky, Aidan

AU - Fei, Qinyue

AU - Andika, Irham T.

AU - Lambrides, Erini

AU - Akins, Hollis B.

AU - Kartaltepe, Jeyhan S.

AU - Koekemoer, Anton M.

AU - McCracken, Henry Joy

AU - Rhodes, Jason

AU - Robertson, Brant E.

AU - Franco, Maximilien

AU - Liu, Daizhong

AU - Chartab, Nima

AU - Gillman, Steven

AU - Gozaliasl, Ghassem

AU - Hirschmann, Michaela

AU - Huertas-Company, Marc

AU - Massey, Richard

AU - Roy, Namrata

AU - Sattari, Zahra

AU - Shuntov, Marko

AU - Sterling, Joseph

AU - Toft, Sune

AU - Trakhtenbrot, Benny

AU - Yoshida, Naoki

AU - Zavala, Jorge A.

PY - 2024/12/1

Y1 - 2024/12/1

N2 - The current paradigm for the co-evolution of galaxies and their supermassive black holes postulates that dust-obscured active galactic nuclei (AGNs) represent a transitional phase towards a more luminous and unobscured state. However, our understanding of dusty AGNs and their host galaxies at early cosmic times is inadequate due to observational limitations. Here, we present JWST observations of CID-931, an X-ray-detected AGN at a spectroscopic redshift of zspec = 4.91. Multiband NIRCam imaging from the COSMOS-Web program reveals an unresolved red core, similar to JWST-discovered dusty AGNs. Strikingly, the red core is surrounded by at least eight massive star-forming clumps spread over 1.6 ≈ 10 kpc, each of which has a stellar mass of 109–1010 M and a radius of ∼0.1–1 kpc. The whole system amounts to 1011 M in stellar mass, higher than typical star-forming galaxies at the same epoch. In this system, gas inflows and/or complex merger events may trigger clump formation and AGN activity, thus leading to the rapid formation of a massive galaxy hosting a supermassive black hole. Future followup observations will provide new insights into the evolution of the galaxy–black hole relationship during such transitional phases in the early universe.

AB - The current paradigm for the co-evolution of galaxies and their supermassive black holes postulates that dust-obscured active galactic nuclei (AGNs) represent a transitional phase towards a more luminous and unobscured state. However, our understanding of dusty AGNs and their host galaxies at early cosmic times is inadequate due to observational limitations. Here, we present JWST observations of CID-931, an X-ray-detected AGN at a spectroscopic redshift of zspec = 4.91. Multiband NIRCam imaging from the COSMOS-Web program reveals an unresolved red core, similar to JWST-discovered dusty AGNs. Strikingly, the red core is surrounded by at least eight massive star-forming clumps spread over 1.6 ≈ 10 kpc, each of which has a stellar mass of 109–1010 M and a radius of ∼0.1–1 kpc. The whole system amounts to 1011 M in stellar mass, higher than typical star-forming galaxies at the same epoch. In this system, gas inflows and/or complex merger events may trigger clump formation and AGN activity, thus leading to the rapid formation of a massive galaxy hosting a supermassive black hole. Future followup observations will provide new insights into the evolution of the galaxy–black hole relationship during such transitional phases in the early universe.

KW - galaxies: active

KW - galaxies: evolution

KW - galaxies: high-redshift

UR - http://www.scopus.com/inward/record.url?scp=85211966272&partnerID=8YFLogxK

U2 - https://doi.org/10.1093/pasj/psae091

DO - https://doi.org/10.1093/pasj/psae091

M3 - مقالة

SN - 0004-6264

VL - 76

SP - 1323

EP - 1335

JO - PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

JF - PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN

IS - 6

ER -

Crimson Behemoth: A massive clumpy structure hosting a dusty AGN at z = 4.91

Abstract

Keywords

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this