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ALMA Resolves the Stellar Birth Explosion in Distant Quasar 3C298

Barthel, P. D. and Versteeg, M. J. F. and Podigachoski, P. and Haas, M. and Wilkes, B. J. and de Breuck, C. and Djorgovski, S. G. (2018) ALMA Resolves the Stellar Birth Explosion in Distant Quasar 3C298. Astrophysical Journal Letters, 866 (1). Art. No. L3. ISSN 2041-8205. doi:10.3847/2041-8213/aae3e2.

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Galaxies are believed to experience star formation and black-hole-driven nuclear activity symbiotically. The symbiosis may be more extreme in the distant universe, as far-infrared photometry with the Herschel Space Observatory has found many cases of ultraluminous cool dust emission in z > 1 radio galaxies and quasars, which could have its origin in the central black hole activity, or in extreme starbursts. We here present strong evidence for an extreme circumnuclear starburst in the z = 1.439 quasar 3C298. Our unparalleled 0.18 arcsec resolution Atacama Large Millimeter/submillimeter Array (ALMA) image at rest-frame 410 μm wavelength shows that the ~40 K dust in its host galaxy resides in an asymmetric circumnuclear structure. The morphology of this structure implies a starburst origin and a symbiotic physical relation with the active-galactic-nucleus-driven radio source. The symbiosis is likely to be a general property of distant massive galaxies.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Barthel, P. D.0000-0002-0106-5776
Podigachoski, P.0000-0003-3836-710X
Wilkes, B. J.0000-0003-1809-2364
de Breuck, C.0000-0002-6637-3315
Djorgovski, S. G.0000-0002-0603-3087
Additional Information:© 2018. The American Astronomical Society. Received 2018 June 14; revised 2018 September 13; accepted 2018 September 20; published 2018 October 4. The assistance of Drs. L. Guzman-Ramirez and Y. Contreras at Allegro, the European ALMA Regional Centre Node in Leiden, and of Groningen BSc D. Bartels is gratefully acknowledged. P.D.B. acknowledges the hospitality of NRAO Socorro, where the manuscript was finalized. B.J.W. acknowledges the support of NASA Contract NAS8-03060 (CXC). S.G.D. was supported in part by the NSF grants AST-1413600 and AST-1518308, and by the Ajax Foundation. We acknowledge careful reading and insightful comments by the referee. This Letter makes use of the following ALMA data: ADS/JAO.ALMA#2015.1.00754.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), NSC and AS/AA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ.
Funding AgencyGrant Number
Ajax FoundationUNSPECIFIED
Subject Keywords:galaxies: high-redshift; galaxies: starburst; quasars: general; quasars: individual (3C298)
Issue or Number:1
Record Number:CaltechAUTHORS:20181005-093940020
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Official Citation:P. D. Barthel et al 2018 ApJL 866 L3
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90143
Deposited By: George Porter
Deposited On:05 Oct 2018 21:36
Last Modified:16 Nov 2021 00:41

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