Deprojected analysis of Abell 1835 observed with Chandra and compared with XMM-Newton
Deprojected analysis of Abell 1835 observed with Chandra and compared with XMM-Newton
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用 Chandra 观察到的 Abell 1835 的反投影分析并与 XMM-Newton 进行比较
DOI:
10.1051/0004-6361/201118578
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发表时间:
2012-08
期刊:
影响因子:
--
通讯作者:
Zhao H.H.
中科院分区:
文献类型:
--
作者:
Li C.K.;Jia S.M.;Chen Y.;Xiang F.;Wang Y.S.;Zhao H.H.
Using a deprojection technique, we study the X-ray properties of the galaxy cluster Abell 1835 observed with Chandra, including temperature, abundance, electron density, gas mass fraction, and total mass. A comparison with the results without deprojection shows that the properties do not change much. When we compare the results with those of XMM-Newton, the difference between the temperature profiles derived from Chandra and XMM-Newton data still exists, even if the point-spread function effect of XMM-Newton is corrected. To investigate the reasons for the difference, we used the spectra to cross-calibrate the temperatures. They show that the Chandra spectra can be fitted well with XMM-Newton temperatures. Furthermore, we derive the electron density profile from Chandra data with XMM-Newton temperatures and calculate the projected mass, which is consistent with the XMM-Newton mass and a little lower than the weak lensing mass at r(500). Thus, it seems that the temperature derived from XMM-Newton may be more reliable.
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影响因子:
6.5
作者:
S. Majerowicz;D. Neumann;Thomas H. Reiprich CEASaclay SAp;F. Mpe;Garching;G. U. O. Virginia;
通讯作者:
S. Majerowicz;D. Neumann;Thomas H. Reiprich CEASaclay SAp;F. Mpe;Garching;G. U. O. Virginia;
影响因子:
6.5
作者:
Yong-jun Chen;Y. Ikebe;H. Böhringer
通讯作者:
Yong-jun Chen;Y. Ikebe;H. Böhringer
影响因子:
6.5
作者:
Shu-Mei Jia;Shu-Mei Jia;Y. Chen;Fang Lu;Luonan Chen;Luonan Chen;F. Xiang
通讯作者:
Shu-Mei Jia;Shu-Mei Jia;Y. Chen;Fang Lu;Luonan Chen;Luonan Chen;F. Xiang
影响因子:
3.3
作者:
E. Rasia;M. Meneghetti;R. Martino;S. Borgani;S. Borgani;A. Bonafede;K. Dolag;S. Ettori;D. Fabjan-D.
通讯作者:
E. Rasia;M. Meneghetti;R. Martino;S. Borgani;S. Borgani;A. Bonafede;K. Dolag;S. Ettori;D. Fabjan-D.
DOI:
10.1086/158369
发表时间:
1980-10
期刊:
The Astrophysical Journal
影响因子:
--
作者:
D. Fabricant;M. Lecar;P. Gorenstein
通讯作者:
D. Fabricant;M. Lecar;P. Gorenstein