Discovery of an Abundance Gradient in the Central Region of the Virgo Cluster

Details Discovery of an Abundance Gradient in the Central Region of the Virgo Cluster Discovery of an Abundance Gradient in the Central Region of the Virgo Cluster

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasj...48..201m&link_type=abstract

Publications of the Astronomical Society of Japan, v.48, p.201-210.

Astronomy and Astrophysics

Astronomy

76

Clusters Of Galaxies: Individual (Virgo), Clusters Of Galaxies: Intracluster Medium, Clusters Of Galaxies: X-Rays, Galaxies: Individual (M87), Galaxies: Intergalactic Medium, Galaxies: Structure, X-Rays: Spectra

Scientific paper

We present the ASCA results of spatially resolved X-ray spectra in the central regions of the Virgo cluster, near to the central elliptical galaxy M87 and 40' northwest of M87 (M87 NW). Since the spectra of the M87 region is complex, an adequate fit requires at least two thin thermal-plasma components. The temperatures of the hot and cool components are approximately 3.0 and 1.3 keV, respectively, and the temperature of these components are both nearly constant over the central 10' radius from the center of M87. The spectrum of M87 NW, on the other hand, can be well fitted by a single thin thermal-plasma model of ~ 2.7 keV temperature. The abundances of Fe, Si, and S rise towards the center of M87, though the ratios of Si/Fe and S/Si remain constant. We also found, contrary to the Einstein Observatory's results, that the abundan ce ratio of oxygen to iron (O/Fe) is smaller than the solar value.

Affiliated with

Also associated with

No associations

Rating

Discovery of an Abundance Gradient in the Central Region of the Virgo Cluster does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Discovery of an Abundance Gradient in the Central Region of the Virgo Cluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of an Abundance Gradient in the Central Region of the Virgo Cluster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1108556