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Searching for dual active galactic nuclei

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dc.contributor.author Rubinur, K
dc.contributor.author Das, Mousumi
dc.contributor.author Kharb, P
dc.date.accessioned 2020-11-11T01:43:53Z
dc.date.available 2020-11-11T01:43:53Z
dc.date.issued 2018-02
dc.identifier.citation Journal of Astrophysics and Astronomy, Vol. 39, No. 1, 8 en_US
dc.identifier.issn 0250-6335
dc.identifier.uri http://prints.iiap.res.in/handle/2248/6900
dc.description Open Access © Indian Academy of Sciences; http://www.ias.ac.in/describe/article/joaa/039/01/0008||https://doi.org/10.1007/s12036-018-9512-y en_US
dc.description.abstract Binary or dual active galactic nuclei (DAGN) are expected from galaxy formation theories. However, confirmed DAGN are rare and finding these systems has proved to be challenging. Recent systematic searches for DAGN using double-peaked emission lines have yielded several new detections, as have the studies of samples of merging galaxies. In this paper, we present an updated list of DAGN compiled from published data. We also present preliminary results from our ongoing Expanded Very Large Array (EVLA) radio study of eight double-peaked emission-line AGN (DPAGN). One of the sample galaxy shows an S-shaped radio jet. Using new and archival data, we have successfully fitted a precessing jet model to this radio source. We find that the jet precession could be due to a binary AGN with a super-massive black-hole (SMBH) separation of ∼ 0.02 pc or a single AGN with a tilted accretion disk. We have found that another sample galaxy, which is undergoing a merger, has two radio cores with a projected separation of 5.6 kpc. We discuss the preliminary results from our radio study. en_US
dc.language.iso en en_US
dc.publisher Indian Academy of Sciences en_US
dc.subject Galaxy merger en_US
dc.subject Dual AGN en_US
dc.subject Radio observations en_US
dc.title Searching for dual active galactic nuclei en_US
dc.type Article en_US


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