The Mass Of The Coma Cluster From Weak Lensing In The Sloan Digital Sky Survey

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We present a weak lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey (SDSS) Data Release Five. Complete imaging of a {approx} 200 square degree region is used to measure the tangential shear of this cluster. The shear is fit to an NFW model and we find a virial radius of r{sub 200} = 1.99{sup +0.21}{sub -0.22}h{sup -1}Mpc which corresponds to a virial mass of M{sub 200} = 1.88{sup +0.65}{sub -0.56} x 10{sup 15}h{sup -1}M{circle_dot}. We additionally compare our weak lensing measurement to the virial mass derived using dynamical techniques, and find they are in agreement. This ... continued below

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16 pages

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Kubo, Jeffrey M.; Stebbins, Albert; Annis, James; Dell'Antonio, Ian P.; Lin, Huan; Khiabanian, Hossein et al. September 1, 2007.

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We present a weak lensing analysis of the Coma Cluster using the Sloan Digital Sky Survey (SDSS) Data Release Five. Complete imaging of a {approx} 200 square degree region is used to measure the tangential shear of this cluster. The shear is fit to an NFW model and we find a virial radius of r{sub 200} = 1.99{sup +0.21}{sub -0.22}h{sup -1}Mpc which corresponds to a virial mass of M{sub 200} = 1.88{sup +0.65}{sub -0.56} x 10{sup 15}h{sup -1}M{circle_dot}. We additionally compare our weak lensing measurement to the virial mass derived using dynamical techniques, and find they are in agreement. This is the lowest redshift, largest angle weak lensing measurement of an individual cluster to date.

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16 pages

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  • Report No.: FERMILAB-PUB-07-453-A-CD
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 919588
  • Archival Resource Key: ark:/67531/metadc898810

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  • September 1, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 6, 2016, 12:47 p.m.

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Kubo, Jeffrey M.; Stebbins, Albert; Annis, James; Dell'Antonio, Ian P.; Lin, Huan; Khiabanian, Hossein et al. The Mass Of The Coma Cluster From Weak Lensing In The Sloan Digital Sky Survey, article, September 1, 2007; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc898810/: accessed December 11, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.