Far-Infrared Characterization of an Ultraluminous Starburst Associated with a Massively Accreting Black Hole at z = 1.15 | Zendy

E. Le Floc’h | Zendy; C. N. A. Willmer | Zendy; K. G. Noeske | Zendy; Nicholas P. Konidaris | Zendy; E. S. Laird | Zendy; David C. Koo | Zendy; K. Nandra | Zendy; K. Bundy | Zendy; Samir Salim | Zendy; R. Maiolino | Zendy; Christopher J. Conselice | Zendy; Jennifer M. Lotz | Zendy; Casey Papovich | Zendy; J. D. Smith | Zendy; Lina Bai | Zendy; Alison L. Coil | Zendy; P. Barmby | Zendy; M. L. N. Ashby | Zendy; Jiasheng Huang | Zendy; Myra Blaylock | Zendy; G. H. Rieke | Zendy; Jeffrey A. Newman | Zendy; R. J. Ivison | Zendy; S. C. Chapman | Zendy; H. Dole | Zendy; Eiichi Egami | Zendy; D. Elbaz | Zendy

Open Access

Far-Infrared Characterization of an Ultraluminous Starburst Associated with a Massively Accreting Black Hole at z = 1.15

Author(s) -

E. Le Floc’h,

C. N. A. Willmer,

K. G. Noeske,

Nicholas P. Konidaris,

E. S. Laird,

David C. Koo,

K. Nandra,

K. Bundy,

Samir Salim,

R. Maiolino,

Christopher J. Conselice,

Jennifer M. Lotz,

Casey Papovich,

J. D. Smith,

Lina Bai,

Alison L. Coil,

P. Barmby,

M. L. N. Ashby,

Jiasheng Huang,

Myra Blaylock,

G. H. Rieke,

Jeffrey A. Newman,

R. J. Ivison,

S. C. Chapman,

H. Dole,

Eiichi Egami,

D. Elbaz

Publication year - 2007

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/517916

Subject(s) - physics , astrophysics , active galactic nucleus , astronomy , galaxy , star formation , luminous infrared galaxy , supermassive black hole , accretion (finance) , black hole (networking) , luminosity , redshift , quasar , infrared , context (archaeology) , galaxy formation and evolution , computer network , paleontology , routing protocol , routing (electronic design automation) , computer science , biology , link state routing protocol

As part of the "All Wavelength Extended Groth Strip International Survey"(AEGIS), we describe the panchromatic characterization of an X-ray luminousactive galactic nucleus (AGN) in a merging galaxy at z=1.15. This object isdetected at infrared (8mic, 24mic, 70mic, 160mic), submillimeter (850mic) andradio wavelengths, from which we derive a bolometric luminosity L_bol ~ 9x10^12Lsol. We find that the AGN clearly dominates the hot dust emission below 40micbut its total energetic power inferred from the hard X-rays is substantiallyless than the bolometric output of the system. About 50% of the infraredluminosity is indeed produced by a cold dust component that probably originatesfrom enshrouded star formation in the host galaxy. In the context of a coevalgrowth of stellar bulges and massive black holes, this source might represent a``transition'' object sharing properties with both quasars and luminousstarbursts. Study of such composite galaxies will help address how the starformation and disk-accretion phenomena may have regulated each other at highredshift and how this coordination may have participated to the build-up of therelationship observed locally between the masses of black holes and stellarspheroids.Comment: Accepted for publication in ApJL (AEGIS Special Edition) - 5 pages, 1 table, 3 figure

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