共 2 条
JWST's PEARLS: TN J1338-1942-I. Extreme jet-triggered star formation in a z=4.11 luminous radio galaxy
被引:14
|作者:
Duncan, Kenneth J.
[1
]
Windhorst, Rogier A.
[2
]
Koekemoer, Anton M.
[3
]
Roettgering, Huub J. A.
[4
]
Cohen, Seth H.
[2
]
Jansen, Rolf A.
[2
]
Summers, Jake
[2
]
Tompkins, Scott
[2
]
Hutchison, Taylor A.
[5
]
Conselice, Christopher J.
[6
]
Driver, Simon P.
[7
,8
]
Yan, Haojing
[9
]
Adams, Nathan J.
[6
]
Cheng, Cheng
[10
]
Coe, Dan
[3
,11
,12
]
Diego, Jose M.
[13
]
Dole, Herve
[14
]
Frye, Brenda
[15
]
Gim, Hansung B.
[16
]
Grogin, Norman A.
[3
]
Holwerda, Benne W.
[17
]
Lim, Jeremy
[18
]
Marshall, Madeline A.
[19
,20
]
Nonino, Mario
[21
]
Pirzkal, Nor
[3
]
Robotham, Aaron
[7
,8
]
Ryan, Russell E., Jr.
[3
]
Willmer, Christopher N. A.
[15
]
机构:
[1] Univ Edinburgh, Inst Astron, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland
[2] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA
[3] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
[4] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
[5] NASA Goddard Space Flight Ctr, Astrophys Sci Div, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA
[6] Univ Manchester, Jodrell Bank Ctr Astrophys, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, Lancs, England
[7] Univ Western Australia, Int Ctr Radio Astron Res ICRAR, M468,35 Stirling Highway, Crawley, WA 6009, Australia
[8] Univ Western Australia, Int Space Ctr ISC, M468 35,Stirling Highway, Crawley, WA 6009, Australia
[9] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
[10] Chinese Acad Sci, South Amer Ctr Astron, Natl Astron Observ, Beijing 100101, Peoples R China
[11] European Space Agcy ESA, STScI, Assoc Univ Res Astron AURA, Baltimore, MD 21218 USA
[12] Johns Hopkins Univ, Ctr Astrophys Sci, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA
[13] Inst Fis Cantabria CSIC UC, Ave Los Castros S-N, E-39005 Santander, Spain
[14] Univ Paris Saclay, Inst Astrophys Spatiale, CNRS, F-91405 Orsay, France
[15] Univ Arizona, Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA
[16] Montana State Univ, Dept Phys, POB 173840, Bozeman, MT 59717 USA
[17] Univ Louisville, Dept Phys & Astron, Louisville, KY 40292 USA
[18] Univ Hong Kong, Dept Phys, Pokfulam Rd, Hong Kong, Peoples R China
[19] Natl Res Council Canada, Herzberg Astron & Astrophys Res Ctr, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada
[20] ARC Ctr Excellence All Sky Astrophys 3 Dimens AST, Canberra, ACT, Australia
[21] Osserv Astron Trieste, INAF, Via Bazzoni 2, I-34124 Trieste, Italy
基金:
澳大利亚研究理事会;
欧洲研究理事会;
关键词:
galaxies: high-redshift;
galaxies: individual: (TNJ1338-1942);
galaxies: jets;
radio continuum: galaxies;
LYMAN-BREAK GALAXIES;
ACTIVE GALACTIC NUCLEI;
COOL CORE CLUSTERS;
LY-ALPHA EMITTERS;
POPULATION;
EMISSION;
PROTOCLUSTER;
EVOLUTION;
FEEDBACK;
I;
D O I:
10.1093/mnras/stad1267
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We present the first JWST observations of the z = 4.11 luminous radio galaxy TN J1338-1942, obtained as part of the `Prime Extragalactic Areas for Reionization and Lensing Science' ('PEARLS') project. Our NIRCam observations, designed to probe the key rest-frame optical continuum and emission line features at this redshift, enable resolved spectral energy distribution modelling that incorporates both a range of stellar population assumptions and radiative shock models. With an estimated stellar mass of log 10(M/M-circle dot) similar to 10.9, TN J1338-1942 is confirmed to be one of the most massive galaxies known at this epoch. Our observations also reveal extremely high equivalent-width nebular emission coincident with the luminous AGN jets that is best fit by radiative shocks surrounded by extensive recent star formation. We estimate the total star-formation rate (SFR) could be as high as similar to 1600 M-circle dot yr(-1), with the SFR that we attribute to the jet induced burst conservatively greater than or similar to 500 M-circle dot yr(-1). The mass-weighted age of the star-formation, t(mass) < 4 Myr, is consistent with the likely age of the jets responsible for the triggered activity and significantly younger than that measured in the core of the host galaxy. The extreme scale of the potential jet-triggered star-formation activity indicates the potential importance of positive AGN feedback in the earliest stages of massive galaxy formation, with our observations also illustrating the extraordinary prospects for detailed studies of high-redshift galaxies with JWST.
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页码:4548 / 4564
页数:17
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