PMO OpenIR  > 星系中的恒星形成研究团组
A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY
Fu, Hai1; Zhang, Zhi-Yu2,3,4; Assef, Roberto J.5; Stockton, Alan6; Myers, Adam D.7,8; Yan, Lin9; Djorgovski, S. G.1; Wrobel, J. M.10; Riechers, Dominik A.1
2011-10-20
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume740Issue:2Pages:L44(5)
AbstractWe report the confirmation of a kiloparsec-scale binary active galactic nucleus (AGN) with high-resolution radio images from the Expanded Very Large Array (EVLA). SDSS J150243.1+111557 is a double-peaked [O III] AGN at z = 0.39 selected from the Sloan Digital Sky Survey. Our previous near-infrared adaptive optics imaging reveals two nuclei separated by 1.'' 4 (7.4 kpc), and our optical integral-field spectroscopy suggests that they are a type-1-type-2 AGN pair. However, these data alone cannot rule out the single AGN scenario where the narrow emission-line region associated with the secondary is photoionized by the broad-line AGN in the primary. Our new EVLA images at 1.4, 5.0, and 8.5 GHz show two steep-spectrum compact radio sources spatially coincident with the optical nuclei. The radio power of the type-2 AGN is an order-of-magnitude in excess of star-forming galaxies with similar extinction-corrected [O II] lambda 3727 luminosities, indicating that the radio emission is powered by accretion. Therefore, SDSS J150243.1+111557 is one of the few confirmed kiloparsec-scale binary AGN systems. Spectral energy distribution modeling shows that SDSS J150243.1+111557 is a merger of two similar to 10(11) M-circle dot galaxies. With both black hole masses around 10(8) M-circle dot, the AGNs are accreting at similar to 10 times below the Eddington limit.
KeywordGalaxies: Active Galaxies: Individual (Sdss j150243.1+111557) Galaxies: Interactions Galaxies: Nuclei
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/2041-8205/740/2/L44
WOS KeywordSUPERMASSIVE BLACK-HOLES ; LINE REGION KINEMATICS ; DIGITAL SKY SURVEY ; RADIO-SOURCES ; GALAXIES ; QUASAR ; LUMINOSITY ; DISCOVERY ; OBJECTS ; SAMPLE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000296752600013
Citation statistics
Cited Times:61[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/4528
Collection星系中的恒星形成研究团组
Affiliation1.CALTECH, Dept Astron, Pasadena, CA 91125 USA
2.CAS, Purple Mt Observ, Nanjing 210008, Peoples R China
3.Max Planck Inst Radioastron, D-53121 Bonn, Germany
4.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
5.CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
6.Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
7.Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA
8.Max Planck Inst Astron, D-69117 Heidelberg, Germany
9.CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA
10.Natl Radio Astron Observ, Socorro, NM 87801 USA
Recommended Citation
GB/T 7714
Fu, Hai,Zhang, Zhi-Yu,Assef, Roberto J.,et al. A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY[J]. ASTROPHYSICAL JOURNAL LETTERS,2011,740(2):L44(5).
APA Fu, Hai.,Zhang, Zhi-Yu.,Assef, Roberto J..,Stockton, Alan.,Myers, Adam D..,...&Riechers, Dominik A..(2011).A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY.ASTROPHYSICAL JOURNAL LETTERS,740(2),L44(5).
MLA Fu, Hai,et al."A KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEUS CONFIRMED BY THE EXPANDED VERY LARGE ARRAY".ASTROPHYSICAL JOURNAL LETTERS 740.2(2011):L44(5).
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