Finding binary active galactic nuclei candidates by the centroid shift in imaging surveys II. Testing the method with SDSS J233635.75-010733.7

doi:10.1051/0004-6361/201628430

	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
刊名	ASTRONOMY & ASTROPHYSICS
	2016
卷号	592
关键词	galaxies: active astrometry methods: data analysis
DOI	10.1051/0004-6361/201628430
通讯作者	刘元
英文摘要	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.
语种	英语
WOS记录号	WOS:000384722600119
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260696]
专题	中国科学院高能物理研究所
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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).