First galaxy-galaxy lensing measurement of satellite halo mass in the CFHT Stripe-82 Survey

	First galaxy-galaxy lensing measurement of satellite halo mass in the CFHT Stripe-82 Survey
	Li, Ran 1; Shan, Huanyuan2 ; Mo, Houjun 3; Kneib, Jean-Paul 2,4; Yang, Xiaohu 5,6; Luo, Wentao 6; van den Bosch, Frank C.7; Erben, Thomas 8; Moraes, Bruno 9; Makler, Martin 9
刊名	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2014-03-01
卷号	438 期号:4 页码:2864-2870
关键词	gravitational lensing: weak galaxies: clusters: general galaxies: haloes dark matter
英文摘要	We select satellite galaxies from the galaxy group catalogue constructed with the Sloan Digital Sky Survey spectroscopic galaxies and measure the tangential shear around these galaxies with the source catalogue extracted from the Canada-France-Hawaii Telescope Stripe-82 Survey. Using the tangential shear, we constrain the mass of subhaloes associated with these satellites. The lensing signal is measured around satellites in groups with masses in the range 10(13)-5 x 10(14) h (1) M-circle dot, and is found to agree well with theoretical expectations. Fitting the data with a truncated NFW profile, we obtain an average subhalo mass of log (M-sub/h (-1) M-circle dot) = 11.68 +/- 0.67 for satellites whose projected distances to central galaxies are in the range 0.1-0.3 h (1) Mpc and log (M-sub/h (1) M-circle dot) = 11.68 +/- 0.76 for satellites with projected halo-centric distance in [0.3, 0.5]h (1) Mpc. The best-fitting subhalo masses are comparable to the truncated subhalomasses assigned to satellite galaxies using abundance matching and are about 5-10 times higher than the average stellar mass of the lensing satellite galaxies.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	DARK-MATTER HALOS ; DIGITAL SKY SURVEY ; HIGH-DENSITY ENVIRONMENTS ; STELLAR MASS ; GRAVITATIONAL LENSES ; SHAPE MEASUREMENT ; SUBSTRUCTURE ; SIMULATIONS ; STATISTICS ; LUMINOSITY
收录类别	SCI
语种	英语
WOS记录号	WOS:000332038000011
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18175]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.EPFL, Observ Sauverny, Lab Astrophys, CH-1290 Versoix, Switzerland 3.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA 4.Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France 5.Shanghai Jiao Tong Univ, Ctr Astron & Astrophys, Shanghai 200240, Peoples R China 6.Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 7.Yale Univ, Dept Astron, New Haven, CT 06520 USA 8.Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany 9.Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ, Brazil
推荐引用方式 GB/T 7714	Li, Ran,Shan, Huanyuan,Mo, Houjun,et al. First galaxy-galaxy lensing measurement of satellite halo mass in the CFHT Stripe-82 Survey[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,438(4):2864-2870.
APA	Li, Ran.,Shan, Huanyuan.,Mo, Houjun.,Kneib, Jean-Paul.,Yang, Xiaohu.,...&Makler, Martin.(2014).First galaxy-galaxy lensing measurement of satellite halo mass in the CFHT Stripe-82 Survey.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,438(4),2864-2870.
MLA	Li, Ran,et al."First galaxy-galaxy lensing measurement of satellite halo mass in the CFHT Stripe-82 Survey".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 438.4(2014):2864-2870.