The DEEP2 galaxy redshift survey: AEGIS observations of a dual AGN at z = 0.7

Brian F. Gerke; Jeffrey A. Newman; Jennifer Lotz; Renbin Yan; P. Barmey; Alison L. Coil; Christopher J. Conselice; R. J. Ivision; Lihwai Lin; David C. Koo; Kirpal Nandra; Samir Salim; Todd Small; Benjamin J. Weiner; Michael C. Cooper; Marc Davis; S. M. Faber; Puragra Guhathakurta

doi:10.1086/517968

The DEEP2 galaxy redshift survey: AEGIS observations of a dual AGN at z = 0.7

Brian F. Gerke, Jeffrey A. Newman, Jennifer Lotz, Renbin Yan, P. Barmey, Alison L. Coil, Christopher J. Conselice, R. J. Ivision, Lihwai Lin, David C. Koo, Kirpal Nandra, Samir Salim, Todd Small, Benjamin J. Weiner, Michael C. Cooper, Marc Davis, S. M. Faber, Puragra Guhathakurta

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

72 Scopus citations

Abstract

We present evidence of a dual active galactic nucleus (AGN) within an early-type galaxy at z = 0.709 in the extended Groth strip. The galaxy lies on the red sequence, with absolute magnitude M_B = -21.0 (AB, with h = 0.7) and rest-frame color U - B = 1.38. Its optical spectrum shows strong, double-peaked [O III ] emission lines and weak Hβ emission, with Seyfert-like line ratios. The two narrow peaks are separated by 630 km s ^-1 in velocity and arise from two distinct regions, spatially resolved in the DEIMOS spectrum, with a projected physical separation of 1.2 kpc. HST ACS imaging shows an early-type (E/S0) galaxy with hints of disturbed structure, consistent with the remnant of a dissipationless merger. Multiwavelength photometric information from the AEGIS consortium confirms the identification of a dust-obscured AGN in an early-type galaxy, with detections in X-ray, optical, infrared, and radio wave bands. These data are most readily explained as a single galaxy harboring two AGNs-the first such system to be observed in an otherwise typical early-type galaxy.

Original language	English (US)
Pages (from-to)	L23-L26
Journal	Astrophysical Journal
Volume	660
Issue number	1 II
DOIs	https://doi.org/10.1086/517968
State	Published - May 1 2007
Externally published	Yes

Keywords

Galaxies: active
Galaxies: nuclei

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1086/517968

Cite this

Gerke, B. F., Newman, J. A., Lotz, J., Yan, R., Barmey, P., Coil, A. L., Conselice, C. J., Ivision, R. J., Lin, L., Koo, D. C., Nandra, K., Salim, S., Small, T., Weiner, B. J., Cooper, M. C., Davis, M., Faber, S. M., & Guhathakurta, P. (2007). The DEEP2 galaxy redshift survey: AEGIS observations of a dual AGN at z = 0.7. Astrophysical Journal, 660(1 II), L23-L26. https://doi.org/10.1086/517968

Gerke, BF, Newman, JA, Lotz, J, Yan, R, Barmey, P, Coil, AL, Conselice, CJ, Ivision, RJ, Lin, L, Koo, DC, Nandra, K, Salim, S, Small, T, Weiner, BJ, Cooper, MC, Davis, M, Faber, SM & Guhathakurta, P 2007, 'The DEEP2 galaxy redshift survey: AEGIS observations of a dual AGN at z = 0.7', Astrophysical Journal, vol. 660, no. 1 II, pp. L23-L26. https://doi.org/10.1086/517968

@article{e9ec6caf43ae47509fdbeb2b6150becb,

title = "The DEEP2 galaxy redshift survey: AEGIS observations of a dual AGN at z = 0.7",

abstract = "We present evidence of a dual active galactic nucleus (AGN) within an early-type galaxy at z = 0.709 in the extended Groth strip. The galaxy lies on the red sequence, with absolute magnitude MB = -21.0 (AB, with h = 0.7) and rest-frame color U - B = 1.38. Its optical spectrum shows strong, double-peaked [O III ] emission lines and weak Hβ emission, with Seyfert-like line ratios. The two narrow peaks are separated by 630 km s -1 in velocity and arise from two distinct regions, spatially resolved in the DEIMOS spectrum, with a projected physical separation of 1.2 kpc. HST ACS imaging shows an early-type (E/S0) galaxy with hints of disturbed structure, consistent with the remnant of a dissipationless merger. Multiwavelength photometric information from the AEGIS consortium confirms the identification of a dust-obscured AGN in an early-type galaxy, with detections in X-ray, optical, infrared, and radio wave bands. These data are most readily explained as a single galaxy harboring two AGNs-the first such system to be observed in an otherwise typical early-type galaxy.",

keywords = "Galaxies: active, Galaxies: nuclei",

author = "Gerke, {Brian F.} and Newman, {Jeffrey A.} and Jennifer Lotz and Renbin Yan and P. Barmey and Coil, {Alison L.} and Conselice, {Christopher J.} and Ivision, {R. J.} and Lihwai Lin and Koo, {David C.} and Kirpal Nandra and Samir Salim and Todd Small and Weiner, {Benjamin J.} and Cooper, {Michael C.} and Marc Davis and Faber, {S. M.} and Puragra Guhathakurta",

year = "2007",

month = may,

day = "1",

doi = "10.1086/517968",

language = "English (US)",

volume = "660",

pages = "L23--L26",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1 II",

}

TY - JOUR

T1 - The DEEP2 galaxy redshift survey

T2 - AEGIS observations of a dual AGN at z = 0.7

AU - Gerke, Brian F.

AU - Newman, Jeffrey A.

AU - Lotz, Jennifer

AU - Yan, Renbin

AU - Barmey, P.

AU - Coil, Alison L.

AU - Conselice, Christopher J.

AU - Ivision, R. J.

AU - Lin, Lihwai

AU - Koo, David C.

AU - Nandra, Kirpal

AU - Salim, Samir

AU - Small, Todd

AU - Weiner, Benjamin J.

AU - Cooper, Michael C.

AU - Davis, Marc

AU - Faber, S. M.

AU - Guhathakurta, Puragra

PY - 2007/5/1

Y1 - 2007/5/1

N2 - We present evidence of a dual active galactic nucleus (AGN) within an early-type galaxy at z = 0.709 in the extended Groth strip. The galaxy lies on the red sequence, with absolute magnitude MB = -21.0 (AB, with h = 0.7) and rest-frame color U - B = 1.38. Its optical spectrum shows strong, double-peaked [O III ] emission lines and weak Hβ emission, with Seyfert-like line ratios. The two narrow peaks are separated by 630 km s -1 in velocity and arise from two distinct regions, spatially resolved in the DEIMOS spectrum, with a projected physical separation of 1.2 kpc. HST ACS imaging shows an early-type (E/S0) galaxy with hints of disturbed structure, consistent with the remnant of a dissipationless merger. Multiwavelength photometric information from the AEGIS consortium confirms the identification of a dust-obscured AGN in an early-type galaxy, with detections in X-ray, optical, infrared, and radio wave bands. These data are most readily explained as a single galaxy harboring two AGNs-the first such system to be observed in an otherwise typical early-type galaxy.

AB - We present evidence of a dual active galactic nucleus (AGN) within an early-type galaxy at z = 0.709 in the extended Groth strip. The galaxy lies on the red sequence, with absolute magnitude MB = -21.0 (AB, with h = 0.7) and rest-frame color U - B = 1.38. Its optical spectrum shows strong, double-peaked [O III ] emission lines and weak Hβ emission, with Seyfert-like line ratios. The two narrow peaks are separated by 630 km s -1 in velocity and arise from two distinct regions, spatially resolved in the DEIMOS spectrum, with a projected physical separation of 1.2 kpc. HST ACS imaging shows an early-type (E/S0) galaxy with hints of disturbed structure, consistent with the remnant of a dissipationless merger. Multiwavelength photometric information from the AEGIS consortium confirms the identification of a dust-obscured AGN in an early-type galaxy, with detections in X-ray, optical, infrared, and radio wave bands. These data are most readily explained as a single galaxy harboring two AGNs-the first such system to be observed in an otherwise typical early-type galaxy.

KW - Galaxies: active

KW - Galaxies: nuclei

UR - http://www.scopus.com/inward/record.url?scp=34249073740&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34249073740&partnerID=8YFLogxK

U2 - 10.1086/517968

DO - 10.1086/517968

M3 - Article

AN - SCOPUS:34249073740

SN - 0004-637X

VL - 660

SP - L23-L26

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 II

ER -

The DEEP2 galaxy redshift survey: AEGIS observations of a dual AGN at z = 0.7

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this