Biases in hydrostatic mass profiles introduced by hot gas substructures: Chandra study of four galaxy clusters

Details Biases in hydrostatic mass profiles introduced by hot gas substructures: Chandra study of four galaxy clusters Biases in hydrostatic mass profiles introduced by hot gas substructures: Chandra study of four galaxy clusters

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010raa....10.1005g&link_type=abstract

Research in Astronomy and Astrophysics, Volume 10, Issue 10, pp. 1005-1012 (2010).

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

By analyzing the azimuthal variations of total gravitating mass profiles in the central 300 h-171 kpc regions of four galaxy clusters with Chandra data, we find that the azimuthally-averaged mass profiles may have been systematically underestimated by 16+9-8% at 1σ significance in the 50-100 h-171 kpc regions, probably due to the prevailing existence of 2-D hot gas substructures in 100-300 h-171 kpc. The mass biases become negligible (-7+11-9%) at > 150 h-171 kpc. We confirm the results that the gas temperature maps can be used to probe the departure from hydrostatic equilibrium and help quantify the systematic biases in X-ray mass measurements in the central regions of clusters.

Affiliated with

Also associated with

No associations

Rating

Biases in hydrostatic mass profiles introduced by hot gas substructures: Chandra study of four galaxy clusters 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 Biases in hydrostatic mass profiles introduced by hot gas substructures: Chandra study of four galaxy clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biases in hydrostatic mass profiles introduced by hot gas substructures: Chandra study of four galaxy clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1312242