Discovery of 0.5 MK Gas in the Center of the Virgo Cluster

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

138

Galaxies: Clusters: Individual Name: Virgo

Scientific paper

An observation of M87, the central galaxy of the Virgo Cluster, was performed by the deep survey telescope aboard the Extreme-Ultraviolet Explorer, in the 0.065--0.245 keV energy band. A point source and an extended emission halo of radius ~20' are clearly visible in the data, and represent the first detection of cluster gas emission in the EUV. The emission cannot be explained by the well-known cluster gas at X-ray temperatures. Instead, it is necessary to introduce a second gas component, with temperature between 5 x 105 and 106 K. The rapid cooling of plasmas at such temperatures implies a mass accretion rate of more than 300 M&sun; yr-1. It is unlikely that the phenomenon is directly related to a cooling flow, which involves a much lower accretion rate of ~10 M&sun; yr-1.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Discovery of 0.5 MK Gas in the Center 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 0.5 MK Gas in the Center of the Virgo Cluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of 0.5 MK Gas in the Center of the Virgo Cluster will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1153879

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.