2002A&A...391..903S


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.12CEST11:17:57

2002A&A...391..903S - Astronomy and Astrophysics, volume 391, 903-909 (2002/9-1)

High resolution soft X-ray spectroscopy of M 87 with the reflection grating spectrometers on XMM-Newton.

SAKELLIOU I., PETERSON J.R., TAMURA T., PAERELS F.B.S., KAASTRA J.S., BELSOLE E., BOEHRINGER H., BRANDUARDI-RAYMONT G., FERRIGNO C., DEN HERDER J.W., KENNEA J., MUSHOTZKY R.F., VESTRAND W.T. and WORRALL D.M.

Abstract (from CDS):

We present high-resolution X-ray spectroscopic observations of M 87 with the Reflection Grating Spectrometers on XMM-Newton. We detect strong K-shell line emission from N, O, Ne, Mg, some emission from He-like Si, a fully resolved set of Fe L-shell emission spectra, and some emission from C. The angular intensity distributions of the strong emission lines are detectably resolved on scales (15-160)". The gas in the inner arcmin of M 87 has a multi-phase structure, as indicated by the similarity of the emission line profiles of Fe L shell ions with widely separated ionization potentials. The global Fe L spectrum is approximately consistent with an isothermal plasma at kTe∼1.8keV, in addition to a component with a temperature distribution appropriate to an isobaric cooling flow, but with a minimum temperature cutoff of kTmin≃600eV. The behaviour of this cooling-flow component is qualitatively similar to what is seen in other cooling flow clusters. Finally, we do not find any strong evidence for a spatial variation in abundances due to resonance scattering redistribution in the inner arcminute of the core.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: Virgo - galaxies: individual: M 87 - galaxies: cooling flows - galaxies: abundances - X-rays: galaxies

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 533 GiG 01 25 31.432 +01 45 33.57   13.1 14.11     ~ 209 0
2 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6034 0
3 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6405 3
4 NAME NGC 4636 Group GrG 12 42 49.5 +02 41 08           ~ 551 0
5 NGC 4636 LIN 12 42 49.867 +02 41 16.01   12.62 11.84     ~ 1053 1
6 NAME Centaurus A Sy2 13 25 27.61509104 -43 01 08.8056025   8.18 6.84 6.66   ~ 4096 3

    Equat.    Gal    SGal    Ecl

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