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May PKS 1155+251 be the habitat of a binary black hole?

Published online by Cambridge University Press:  07 March 2016

Xiaolong Yang  and
Xiang Liu
Xiaolong Yang
Affiliation:
Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, 830002, China; email: yangxiaolong@xao.ac.cn Graduate University of Chinese Academy of Sciences, 100049, Beijing, China
Xiang Liu
Affiliation:
Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, 830002, China; email: yangxiaolong@xao.ac.cn
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Abstract

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Close binary black holes (BBH) are important not only in astrophysics but they would be the strongest gravitational wave sources in the universe. Galaxy-galaxy merging systems are mostly found in optical and X-ray images. In radio, however, the VLBI can resolve the close binary system at pc scale, if their nuclei are radio loud. Recently we analyzed the archive VLBI data of PKS 1155+251, it shows twin core-jets like VLBI structure. In this poster, we present preliminary result from analyzing of the archive data. Further investigations with high frequency VLBI observations are required to confirm if it is a true BBH system.

Keywords

black hole physics: binary – galaxies: jets – quasars: general – radio continuum
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S312: Star Clusters and Black Holes in Galaxies across Cosmic Time , August 2014 , pp. 71 - 72
Copyright
Copyright © International Astronomical Union 2016 

References

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