Astronomy and Astrophysics – Astronomy
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.1702s&link_type=abstract
American Astronomical Society, 198th AAS Meeting, #17.02; Bulletin of the American Astronomical Society, Vol. 33, p.811
Astronomy and Astrophysics
Astronomy
1
Scientific paper
The results from a recent Chandra ACIS-S observation of the Cygnus A galaxy cluster are presented. We confirm a drop in the temperature of the X-ray emitting gas from 8 keV some 4' from the center to 5 keV in the center, with the coolest gas immediately adjacent to the radio galaxy. The radio lobes appear as cavities in the X-ray image, and are devoid of X-ray emitting gas. We detect X-ray emission from the radio jet for the first time. Finally, the Chandra data provide evidence for a metallicity gradient in the X-ray emitting gas, with the highest metallicities ( ~ solar) found close to the center decreasing to ~ 0.3 solar in the outer parts. We have deprojected the X-ray spectra taken from various elliptical shells in order to derive the run of temperature and density as a function of radius. We shall present these results in the context of theoretical models describing the interaction between the radio galaxy and intracluster medium. This reserch made use of funding through NASA grant NAG-81027.
Arnaud A. A. K.
Shopbell Patrick Lynn
Smith Alastair D.
Terashima Yoshinosuke
Wilson Andrew S.
No associations
LandOfFree
Resolving the radio-X-ray interaction in Cygnus A: an observation with Chandra 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 Resolving the radio-X-ray interaction in Cygnus A: an observation with Chandra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resolving the radio-X-ray interaction in Cygnus A: an observation with Chandra will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1268277