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.

引用

页码：L181 / L187

页数：7

共 35 条

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