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Finding binary active galactic nuclei candidates by the centroid shift in imaging surveys II. Testing the method with SDSS J233635.75-010733.7
Liu Y(刘元); Liu, Y
2016
发表期刊ASTRONOMY & ASTROPHYSICS
卷号592
通讯作者刘元
摘要We have previously proposed selecting binary active galactic nuclei (AGNs) candidates using the centroid shift of the images that is induced by the non-synchronous variations of the two nuclei. In this paper, a known binary AGN (SDSS J233635.75-010733.7) is employed to verify the functioning of this method. Using 162 exposures in the R band of the Palomar Transient Factory (PTF), an excess of dispersion in the positional distribution of the binary AGN is detected, although the two nuclei cannot be resolved in the images of PTF. We also propose a new method to compare the position of the binary AGN in PTF g and R band and find that the difference is highly significant even with only 20 exposures. This new method is efficient for two nuclei with different spectral energy distributions such as type I + type II AGN or an off-set AGN. Large-scale surveys such as the Panoramic Survey Telescope and Rapid Response System, and the Large Synoptic Survey Telescope are expected to discover a large sample of binary AGN candidates with these methods.
文章类型Article
关键词galaxies: active astrometry methods: data analysis
DOI10.1051/0004-6361/201628430
关键词[WOS]SUPERMASSIVE BLACK-HOLES ; DIGITAL-SKY-SURVEY ; PEAKED NARROW LINES ; GALAXY MERGERS ; LARGE ARRAY ; QUASARS ; CHANDRA ; ORIGIN ; GROWTH ; AGNS
语种英语
WOS记录号WOS:000384722600119
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260696
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Liu Y,Liu, Y. Finding binary active galactic nuclei candidates by the centroid shift in imaging surveys II. Testing the method with SDSS J233635.75-010733.7[J]. ASTRONOMY & ASTROPHYSICS,2016,592.
APA 刘元,&Liu, Y.(2016).Finding binary active galactic nuclei candidates by the centroid shift in imaging surveys II. Testing the method with SDSS J233635.75-010733.7.ASTRONOMY & ASTROPHYSICS,592.
MLA 刘元,et al."Finding binary active galactic nuclei candidates by the centroid shift in imaging surveys II. Testing the method with SDSS J233635.75-010733.7".ASTRONOMY & ASTROPHYSICS 592(2016).
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