Fixing the reference frame for PPMXL proper motions using extragalactic sources

	Fixing the reference frame for PPMXL proper motions using extragalactic sources
	Grabowski, Kathleen 1; Carlin, Jeffrey L.1; Newberg, Heidi Jo 1; Beers, Timothy C.2,3; Chen, Li 4; Deng, Li-Cai5 ; Grillmair, Carl J.6; Guhathakurta, Puragra 7; Hou, Jin-Liang 4; Hou, Yong-Hui 8
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2015-06-01
卷号	15 期号:6 页码:849-859
关键词	catalogs proper motions surveys: LAMOST
英文摘要	We quantify and correct systematic errors in PPMXL proper motions using extragalactic sources from the first two LAMOST data releases and the Veron-Cetty & Veron Catalog of Quasars. Although the majority of the sources are from the Veron catalog, LAMOST makes important contributions in regions that are not well-sampled by previous catalogs, particularly at low Galactic latitudes and in the south Galactic cap. We show that quasars in PPMXL havemeasurable and significant propermotions, which reflect the systematic zero-point offsets present in the catalog. We confirm the global proper motion shifts seen by Wu et al., and additionally find smaller-scale fluctuations of the QSO-derived corrections to an absolute frame. We average the proper motions of 158 106 extragalactic objects in bins of 3 degrees x 3 degrees and present a table of proper motion corrections.
收录类别	SCI
语种	英语
WOS记录号	WOS:000355138900007
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5686]
专题	国家天文台_光学天文研究部
作者单位	1.Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA 2.Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA 3.Univ Notre Dame, JINA, Notre Dame, IN 46556 USA 4.Shanghai Astron Observ, Shanghai 200030, Peoples R China 5.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 6.Spitzer Sci Ctr, Pasadena, CA 91125 USA 7.Univ Calif Santa Cruz, Univ Calif Observ, Lick Observ, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA 8.Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Jiangsu, Peoples R China 9.Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA 10.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Grabowski, Kathleen,Carlin, Jeffrey L.,Newberg, Heidi Jo,et al. Fixing the reference frame for PPMXL proper motions using extragalactic sources[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(6):849-859.
APA	Grabowski, Kathleen.,Carlin, Jeffrey L..,Newberg, Heidi Jo.,Beers, Timothy C..,Chen, Li.,...&Zheng, Zheng.(2015).Fixing the reference frame for PPMXL proper motions using extragalactic sources.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(6),849-859.
MLA	Grabowski, Kathleen,et al."Fixing the reference frame for PPMXL proper motions using extragalactic sources".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.6(2015):849-859.