@inproceedings{oai:jaxa.repo.nii.ac.jp:00004962,
 author = {Wik, Daniel R. and Sarazin, Craig L.},
 book = {宇宙航空研究開発機構特別資料:, JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H},
 month = {Feb},
 note = {The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan, The radio galaxy Cygnus A lies in a cooling core cluster which is currently undergoing a major merger with a particularly simple geometry mainly along the line of sight. The radial velocity distribution of member galaxies can be separated into two subgroups (Ledlow et al. 2005) separated by a velocity difference of about 2000 km/s, which is consistent with the expectation from the ASCA temperature map (Markevitch et al. 1999) showing a shocked region between the two subclusters. Here, we present a recent 43 ks Suzaku XIS observation of these merging subclusters. The redshifts of the Fe-Kalpha and Kbeta lines monotonically increase from Cygnus A towards the other subcluster, and we find a radial velocity difference between them of 2650 +/- 900 km/s, consistent with the sense and magnitude of the galaxy velocities. Also, we confirm the temperatures measured with ASCA for the Cygnus A cluster, the merger region, and the subcluster of kT = 4.8 +/- 0.1, 9.0 +/- 0.8, and 6.4 +/- 0.4 keV, respectively., Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science, 資料番号: AA0064574030, レポート番号: JAXA-SP-09-008E},
 pages = {88--89},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {The Merger Dynamics of the Cygnus A Cluster: Direct Detection of the Subcluster Infall Velocity},
 volume = {JAXA-SP-09-008E},
 year = {2010}
}