XMM-Newton observations of M 87 and its X-ray halo

被引:158
作者
Böhringer, H
Belsole, E
Kennea, J
Matsushita, K
Molendi, S
Worrall, DM
Mushotzky, RF
Ehle, M
Guainazzi, M
Sakelliou, I
Stewart, G
Vestrand, WT
Dos Santos, S
机构
[1] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
[2] CEA Saclay, Serv Astrophys, F-91191 Gif Sur Yvette, France
[3] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
[4] Ist Fis Cosmica, I-20133 Milan, Italy
[5] Univ Bristol, Dept Phys, Bristol BS8 1TL, Avon, England
[6] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA
[7] ESA, XMM Newton SOC, VILSPA, Madrid 28080, Spain
[8] UCL, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
[9] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England
[10] Los Alamos Natl Lab, NIS2, Los Alamos, NM 87545 USA
来源
ASTRONOMY & ASTROPHYSICS | 2001年 / 365卷 / 01期
关键词
galaxies : individual : M 87; galaxies : clusters : individual : Virgo; X-rays : galaxies; galaxies : active;
D O I
10.1051/0004-6361:20000092
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report performance verification observations of the giant elliptical galaxy M 87 in the Virgo Cluster with the MOS, pn, and optical monitor instruments on board of XMM-Newton. With the energy sensitive imaging instruments MOS and pn we obtain the first spatially constrained X-ray spectra of the nucleus and the jet of the galaxy. The good photon statistics of the pn and MOS allow a detailed analysis of the radial temperature and abundance distribution of 6 elements. The data provide no indication of a multi-temperature structure for radii greater than or equal to2'. An apparent sharp metal abundance drop deduced for the regions inside this radius is probably due to resonant line scattering.
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收藏
页码:L181 / L187
页数:7
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