Author Topic: Dual/Triple AGNs (found by astronomers)  (Read 20275 times)

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Dual/Triple AGNs (found by astronomers)
« on: October 31, 2011, 06:12:55 am »
In this thread I would like to collect published multiple AGNs and published candidates.
Furthermore I want to collect information about this subject.

OOTD: Dual  AGN: http://www.galaxyzooforum.org/index.php?topic=278984.msg537086#msg537086

http://www.galaxyzoo.org/examine/AHZ2000iu2

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
OOTD: Triple AGN: http://www.galaxyzooforum.org/index.php?topic=279128.msg548931#msg548931


http://cas.sdss.org/astrodr7/en/tools/explore/obj.asp?id=587745244167798816

AND


NGC 3341
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587728880879992930
« Last Edit: July 23, 2012, 06:02:28 pm by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #1 on: October 31, 2011, 06:24:21 am »

NGC 3758 aka MRK 739                                                                                                                                             
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587742013279502420
"Chandra Discovery of a Binary Active Galactic Nucleus in Mrk 739"
Authors: Michael Koss, Richard Mushotzky, Ezequiel Treister, Sylvain Veilleux, Ranjan Vasudevan, Neal Miller, D. B. Sanders, Kevin Schawinski, Margaret Trippe
(Submitted on 10 Jun 2011 (v1), last revised 7 Jul 2011 (this version, v2))
http://arxiv.org/abs/1106.2163
PS: One of the authors is Kevin Schawinski.

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #2 on: October 31, 2011, 06:50:16 am »

UGC 08850 aka MRK 463
http://cas.sdss.org/dr7/en/tools/explore/obj.asp?id=587742550676275314
"Chandra unveils a binary Active Galactic Nucleus in Mrk463"
Authors: Stefano Bianchi, Marco Chiaberge, Enrico Piconcelli, Matteo Guainazzi, Giorgio Matt
(Submitted on 6 Feb 2008)
http://arxiv.org/abs/0802.0825

EDIT: Prior paper, but however isn't listed as reference in above paper.: 

Title          : Integral Field Spectroscopy of the Double AGN Merging System Markarian 463
Authors     : Chatzichristou, E.
Publication: Tridimensional Optical Spectroscopic Methods in Astrophysics, ASP Conference Series, Volume 71. Proceedings of I.A.U. Colloquium 149, held in Marseille, France, March 22-25, 1994. Editor(s), G. Comte, M. Marcelin; Publisher, Astronomical Society of the Pacific, San Francisco, California, 1995. LC #: QB465 .I38 1994.
ISBN #: 0-937707-90-2., p.229
Publication Date: 00/1995
Origin: ADS
Bibliographic Code: 1995ASPC...71..229C
http://adsabs.harvard.edu/abs/1995ASPC...71..229C
« Last Edit: January 12, 2014, 06:55:38 am by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #3 on: October 31, 2011, 07:25:15 am »
NGC 5256 -- Pair of Galaxies
Mrk 266 A and B paired (NGC 5256 A  / NGC 5256 B )
two AGNs in the merger separated by 11" (5.9 kpc).

Mrk 266B  LINER 
maser emission , z=0.027678       
587732483292266546 SDSS J133817.27+481632.1



to the north
Mrk 266A  Seyfert_2
587732483292266545SDSS J133817.77+481640.9


EDIT:

HubbleSite NewsCenter: Release Date: April 24, 2008:
Quote
NGC 5256 is located in the constellation of Ursa Major, the Great Bear, some 350 million light-years from Earth. Each galaxy also contains an active galactic nucleus, evidence that the chaos is allowing gas to fall into the regions around central black holes as well as feeding starbursts. Recent observations from the Chandra X-ray Observatory show that both nuclei, as well as a region of hot gas in between them, have been heated by the shock waves driven as gas clouds at high velocities collide.
http://hubblesite.org/newscenter/archive/releases/2008/16/image/bt/

"Chandra archival study of (U)LIRGs with a double nucleus: binary AGNs?"
Authors: Wang, Jing-Bo; Gao, Yu
Quote
Our studies suggest that Mrk 266 might be a new candidate in hosting binary AGNs supported by X-ray observations.
Publication: Research in Astronomy and Astrophysics, Volume 10, Issue 4, pp. 309-328 (2010).
Publication Date: 04/2010
http://adsabs.harvard.edu/abs/2010RAA....10..309W

Quote
The system shown in the third column and second row of Figure 6 is Mrk 266, which is a luminous infrared galaxy at z = 0.028. Its northern nucleus is optically classified as a Seyfert 2, whereas the southern nucleus is a LINER. Its double AGN nature is confirmed by Chandra X-ray observations (Mazzarella et al. 2011; see also Brassington et al. 2007 and Wang & Gao 2010).
"Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. I. The Frequency on ~ 5-100 kpc Scales"
Authors: Xin Liu, Yue Shen, Michael A. Strauss, Lei Hao
(Submitted on 5 Apr 2011 (v1), last revised 14 Jul 2011 (this version, v2))
http://arxiv.org/abs/1104.0950

"Investigation of Dual Active Nuclei, Outflows, Shock-Heated Gas, and Young Star Clusters in Markarian 266"
Mazzarella et al. 2011

« Last Edit: December 06, 2011, 02:00:16 pm by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #4 on: October 31, 2011, 07:30:17 am »
"Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. I. The Frequency on ~ 5-100 kpc Scales"
Authors: Xin Liu, Yue Shen, Michael A. Strauss, Lei Hao
(Submitted on 5 Apr 2011 (v1), last revised 14 Jul 2011 (this version, v2))
http://arxiv.org/abs/1104.0950

On page 5 (figure 6) there are shown 36 AGN pairs.
I recognized some of those:
587745244167798816 Triple AGN (OOTD  27th April, 2011)
587731512073650262
587732483292266546 NGC 5256 (known Dual AGN)
588015509281833182
587735695904997439
588017726007541822
588013383816904792
587741391565422762 UGC 04457 and companion
588011218062016644
588295840174047371
587738569249390719
587731186735317159 discussed in the AGN thread: http://www.galaxyzooforum.org/index.php?topic=10662.msg563611#msg563611 

« Last Edit: December 31, 2011, 10:24:53 am by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #5 on: October 31, 2011, 07:32:42 am »
Quote from: HAI FU
arXiv:1009.0767v2 [astro-ph.CO] 21 Mar 2011 MERGERS IN DOUBLE-PEAKED [O III] ACTIVE GALACTIC NUCLEI
As a natural consequence of galaxy mergers, binary active galactic nuclei (AGNs) should be commonplace. Nevertheless, observational confirmations are rare, especially for binaries with separations less than ten kpc. Such a system may show two sets of narrow emission lines in a single spectrum owing to the orbital motion of the binary.We have obtained high-resolution near-infrared images of 50 double-peaked [O III] λ5007 AGNs with the Keck II laser guide star adaptive optics system. The Sloan Digital Sky Survey sample is compiled from the literature and consists of 17 type-1 AGNs between 0.18 < z < 0.56 and 33 type-2 AGNs between 0.03 < z < 0.24.
...we show that AGN mergers are outliers of the MBH-σ⋆ relation
...Finally, we find that the emission-line properties are indistinguishable for spatially resolved and unresolved sources, emphasizing that scenarios involving a single AGN can produce the same double-peaked line profiles
and they account for at least 70% of the double-peaked [O III] AGNs.

587739646200447031 SDSS J095207.62+255257.2
1237667255612080184




double peaked [OIII] not resolved here  ???

Subsequent papers:
"Spatially-Resolved Spectroscopy of SDSS J0952+2552: a Confirmed Dual AGN"
Quote
The two AGN are separated by 4.8 kpc, and their redshifts correspond to those of the double peaks of the O III emission line seen in the SDSS spectrum.
Authors: R.C. McGurk (UC Santa Cruz), C.E. Max (UC Santa Cruz), D.J. Rosario (MPE), G.A. Shields (UT Austin), K.L. Smith (UT Austin), S.A. Wright (UC Berkeley)
(Submitted on 13 Jul 2011 (v1), last revised 20 Sep 2011 (this version, v2))
http://arxiv.org/abs/1107.2651

"The Nature of Double-Peaked [O III] Active Galactic Nuclei"
Quote
Except for SDSS J0952+2552, which is a clear binary AGN (Fig. 1), they are all difficult to classify.
Authors: Hai Fu, Lin Yan, Adam D. Myers, Alan Stockton, S. G. Djorgovski, G. Aldering, Jeffrey A. Rich
(Submitted on 18 Jul 2011 (v1), last revised 26 Oct 2011 (this version, v2))
http://arxiv.org/abs/1107.3564

1st paper:
"A Search for Binary Active Galactic Nuclei: Double-Peaked [OIII] AGN in the Sloan Digital Sky Survey"
Authors: Krista L. Smith, G. A. Shields, E. W. Bonning, C. C. McMullen, D.J. Rosario, S. Salviander
(Submitted on 14 Aug 2009 (v1), last revised 5 May 2010 (this version, v2))
http://arxiv.org/abs/0908.1998

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #6 on: October 31, 2011, 09:58:03 am »
Binary AGNs
arXiv:1003.3467v2  Discovery of Four kpc-Scale Binary AGNs
 last revised 8 Apr 2010

Quote from: Xin Liu
Xin Liu, Jenny E. Greene, Yue Shen, Michael A. Strauss
(Submitted on 17 Mar 2010 (v1), last revised 8 Apr 2010 (this version, v2))
Abstract: We report the discovery of four kpc-scale binary AGNs. These objects were originally selected from the Sloan Digital Sky Survey based on double-peaked [O III] 4959,5007 emission lines in their fiber spectra. The double peaks could result from pairing active supermassive black holes (SMBHs) in a galaxy merger, or could be due to bulk motions of narrow-line region gas around a single SMBH. Deep near-infrared (NIR) images and optical slit spectra obtained from the Magellan 6.5 m and the APO 3.5 m telescopes strongly support the binary SMBH scenario for the four objects. In each system, the NIR images reveal tidal features and double stellar components with a projected separation of several kpc, while optical slit spectra show two Seyfert 2 nuclei spatially coincident with the stellar components, with line-of-sight velocity offsets of a few hundred km/s. These objects were drawn from a sample of only 43 objects, demonstrating the efficiency of this technique to find kpc-scale binary AGNs.

1237657855535218926 SDSS J114642.47+511029.8


587732702332059831 SDSS J110851.03+065901.4


1237671991339188422 SDSS J133226.34+060627.4




SDSS J113126.08-020459.3
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237650371015671956
« Last Edit: September 26, 2012, 05:55:35 am by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #7 on: October 31, 2011, 10:38:36 am »

NGC 6240
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237655558258360440

"The double AGN in NGC 6240 revealed through 3-5 micron spectroscopy"
Authors: G. Risaliti (1,2), E. Sani (3), R. Maiolino (1), A. Marconi (1), S. Berta (4), V. Braito (5), R. Della Ceca (5), A. Franceschini (4), M. Salvati (1). ((1) INAF - Arcetri, Italy, (2) CfA, USA, (3) Universita' di Firenze, Italy, (4) Universita' di Padova, Italy, (5) INAF - Brera, Italy)
(Submitted on 21 Dec 2005)
http://arxiv.org/abs/astro-ph/0512537

EDIT: previous paper:

Discovery of a binary AGN in the ultraluminous infrared galaxy NGC 6240 using Chandra
Stefanie Komossa, Vadim Burwitz, Guenther Hasinger, Peter Predehl, Jelle S. Kaastra, Yasushi Ikebe
(Submitted on 4 Dec 2002)
http://arxiv.org/abs/astro-ph/0212099
« Last Edit: January 12, 2014, 06:50:30 am by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #8 on: October 31, 2011, 01:02:20 pm »
13025437

EGSD2 J142033.66+525917.5
Quote from: Brian F. Gerke
http://arxiv.org/abs/astro-ph/0608380v2
dual AGN hosted by an early-type galaxy.
Its optical spectrum shows strong, double-peaked [OIII] emission lines and weak Hbeta emission, with Seyfert-like line ratios.
HST/ACS imaging shows an early-type (E/S0) galaxy with hints of disturbed structure, consistent with the remnant of a dissipationless merger.
 single galaxy harboring two AGN--the first such system to be observed in an otherwise typical early-type galaxy.

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #9 on: October 31, 2011, 01:04:21 pm »
1237662683609169926
arXiv:1011.3365v1  The quasar SDSS J142507.32+323137.4 : dual AGNs?
Quote from: Zhixin Peng
..We suggest this QSO might be a dual AGN system, the broad H{\beta} emission line is mainly contributed by the primary black hole (traced by the blue component) while the broad H{\beta} component of the secondary black hole (traced by the red component) is hard to be separated out considering a resolution of ~2000 of SDSS spectra or it is totally obscured by the dusty torus.




zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #10 on: November 01, 2011, 05:34:38 pm »

ARP 299 aka NGC 3690
http://cas.sdss.org/astro/en/tools/explore/obj.asp?id=587729386076373081

"Arp 299: a second merging system with two active nuclei?"
Authors: L. Ballo, V. Braito, R. Della Ceca, L. Maraschi, F. Tavecchio, M. Dadina
(Submitted on 22 Jun 2003 (v1), last revised 7 Nov 2003 (this version, v2))
http://arxiv.org/abs/astro-ph/0306436
« Last Edit: November 02, 2011, 06:30:53 am by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #11 on: November 02, 2011, 07:24:30 am »
"Observability of Dual AGN in Merging Galaxies"
Authors: Sandor Van Wassenhove, Marta Volonteri, Lucio Mayer, Massimo Dotti, Jillian Bellovary, Simone Callegari
(Submitted on 1 Nov 2011 (v1), last revised 1 Mar 2012 (this version, v2))
http://arxiv.org/abs/1111.0223
« Last Edit: March 02, 2012, 07:10:03 am by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #12 on: November 04, 2011, 07:02:40 am »
Quote
4. Binary candidates in the realm of observations

Despite being a natural outcome of galaxy mergers, MBH pairs are still elusive. Less than 20 systems with separations of ∼ 10 pc to ∼ 10 kpc pairs are of this kind are known to date. MBHs orbit in the common post-merger stellar environment, in-spiralling because of dynamical friction.
They appear as a single galaxy (eventually, with disturbed morphology) with two active nuclei.

"Massive black hole binaries: dynamical evolution and observational signatures"
Authors: M. Dotti, A. Sesana, R. Decarli
(Submitted on 2 Nov 2011)
http://arxiv.org/abs/1111.0664
« Last Edit: November 04, 2011, 08:09:56 am by zutopian »

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #13 on: November 04, 2011, 08:58:12 am »
Quote
We report the first X-ray detection of a proto-supermassive binary black hole at the centre of Abell 400. Using the Chandra ACIS, we are able to clearly resolve the two active galactic nuclei in 3C 75, the well known double radio source at the centre of Abell 400.

"X-ray Detection of the Proto Supermassive Binary Black Hole at the Centre of Abell 400"
Authors: Daniel S. Hudson (1), Thomas H. Reiprich (1), Tracy E. Clarke (2 and 3), Craig L. Sarazin (4) ((1) AIfA, (2) NRL, (3) Interferometrics Inc., (4) UVa)
(Submitted on 10 Mar 2006)
http://arxiv.org/abs/astro-ph/0603272

zutopian

  • Hero Member
  • *****
  • Posts: 2852
  • REOPEN this forum!!!
    • View Profile
Re: Dual/Triple AGNs
« Reply #14 on: November 04, 2011, 09:30:11 am »
"AGN pairs: chance superpositions or black hole binaries?"
Authors: M. Dotti, M. Ruszkowski
(Submitted on 29 Dec 2009)
http://arxiv.org/abs/0912.5301