Madoka Kawaharada
Rutgers University
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Publication
Featured researches published by Madoka Kawaharada.
Publications of the Astronomical Society of Japan | 2009
Marshall W. Bautz; Eric D. Miller; J. S. Sanders; Keith A. Arnaud; R. F. Mushotzky; F. Scott Porter; Kiyoshi Hayashida; J. Patrick Henry; John P. Hughes; Madoka Kawaharada; Kazuo Makishima; M. Sato; Takayuki Tamura
We report Suzaku observations of the galaxy cluster Abell 1795 that extend to r200 �2 Mpc, the radius within which the mean cluster mass density is 200 times the cosmic critical density. These observations are the first to probe the state of the intracluster medium in this object at r > 1.3 Mpc. We sample two disjoint sectors in the cluster outskirts (1.3 0.4 Mpc and find that it falls relatively rapidly (Tdeprojected / r −0.9 ), reaching a value about one third of its peak at the largest radius we can measure it. Assuming the intracluster medium is in hydrostatic equilibrium and is polytropic, we find a polytropic index of =1 .3 +0.3 −0.2 and we estimate a mass of 4.1 +0.5 −0.3 ×10 14 M⊙ within 1.3 Mpc, somewhat (2.7 σ) lower than that reported by previous observers. However, our observations provide evidence for departure from hydrostatic equilibrium at radii as small as
Archive | 2016
隆哉 大橋; 真也 山田; 恭子 松下; 佳宏 上田; あや 久保田; 直美 太田; 泰伸 内山; Randall K. Smith; 彩 馬場; 孝行 湯浅; 真也 中島; 芳幸 井上; 匡弘 辻本; 円 川原田; 裕和 小高; 和久 満田; 忠幸 高橋; Andrew C. Fabian; Richard L. Kelley; Robert Petre; Richard F. Mushotzky; Takaya Ohashi; S. Yamada; Kyoko Matsushita; Yoshihiro Ueda; Aya Kubota; Naomi Ota; Yasunobu Uchiyama; Aya Bamba; Takayuki Yuasa
Archive | 2011
Madoka Kawaharada; Nobuhiro Okabe; Keiichi Umetsu; Motokazu Takizawa; Kyoko Matsushita; Yasushi Fukazawa; Takashi Hamana; Satomi Miyazaki; Kazuhiro Nakazawa; Takaya Ohashi
Meeting abstracts of the Physical Society of Japan | 2011
Takaaki Tanaka; Yasunobu Uchiyama; Teruaki Enoto; Masayuki Ohta; Masanori Ohno; Jun Kataoka; Madoka Kawaharada; Motohide Kokubun; G. Sato; Tadayuki Takahashi; Hiromitsu Takahashi; Hiroyasu Tajima; Makoto Tashiro; Yukikatsu Terada; Kazuhiro Nakazawa; Takeshi Nakamori; Yasushi Fukazawa; R. D. Blandford; Kazuo Makishima; G. M. Madejski; T. Mizuno; K. Mori; Yoichi Yatsu; Kazutaka Yamaoka; Philippe Laurent; O. Limousin; Francois Lebrun; Shin Watanabe; SGDチーム
Archive | 2010
円 川原田; Madoka Kawaharada; Nobuhiro Okabe; 知洋 中澤; Kazuhiro Nakazawa; 元和 滝沢; Motokazu Takizawa; Keiich Umetsu
Archive | 2009
円 川原田; Madoka Kawaharada; 一夫 牧島; Kazuo Makishima; 貴雄 北口; Takao Kitaguchi; 翔 奥山; Sho Okuyama; 知洋 中澤; Kazuhiro Nakazawa; 泰司 深沢; Yasushi Fukazawa
Meeting abstracts of the Physical Society of Japan | 2009
H. Tsuchiya; Teruaki Enoto; S. Yamada; Takayuki Yuasa; Madoka Kawaharada; Takao Kitaguchi; Motohide Kokubun; Hiroshi Kato; Masaharu Okano; Kazuo Makishima
Archive | 2008
Daniel R. Wik; Craig L. Sarazin; Kazuhiro Nakazawa; Alexis Finoguenov; Madoka Kawaharada; Takao Kitaguchi; Sho Okuyama; Kyoko Matsushita; Tracy Ellen Clarke
Archive | 2008
Richard L. Kelley; Caroline A. Kilbourne; Dan McCammon; Richard F. Mushotzky; Takashi Okajima; Robert Petre; Frederick Scott Porter; Peter J. Serlemitsos; Randall K. Smith; Yang Soong; A. E. Szymkowiak; Kazuhisa Mitsuda; T. Ohashi; Yoshitaka Ishisaki; Yu-Ichiro Ezoe; Noriko Y. Yamasaki; Kenji Shinozaki; Ryuichi Fujimoto; Madoka Kawaharada
Archive | 2007
Hiromi Tsuchiya; Teruaki Enoto; Shokei Yamada; Takayuki Yuasa; Madoka Kawaharada; Takao Kitaguchi; Motohide Kokubun; Hiroshi Kato; Makoto Okano; Satoshi Nakamura; Kazuo Makishima
