Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241..552f&link_type=abstract
Astrophysical Journal, Part 1, vol. 241, Oct. 15, 1980, p. 552-560.
Astronomy and Astrophysics
Astronomy
207
Elliptical Galaxies, Galactic Structure, Mass Distribution, X Ray Astronomy, X Ray Sources, Brightness, Gas Temperature, Gravitational Fields, High Temperature Gases, Temperature Distribution
Scientific paper
Soft X-ray images of the M87 region were obtained using the Einstein Observatory imaging proportional counter. The 0.7-3.0 keV surface brightness of M87 was mapped to a radial distance exceeding 50 arcmin where it falls 2.5 orders of magnitude below its peak value. The temperature profile of the hot (about 2.5 keV) gas responsible for the X-ray emission was determined from the X-ray spectral data; the gas temperature is approximately constant between radii of 6 and 20 arcmin, but decreases at radii less than 6 arcmin; beyond 20 arcmin, a negative temperature gradient is excluded. Because this gas responds to the gravitational potential of M87, the X-ray observations can be used to measure the radial mass distribution in M87.
Fabricant Dan
Gorenstein Paul
Lecar Myron
No associations
LandOfFree
X-ray measurements of the mass of M87 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 X-ray measurements of the mass of M87, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray measurements of the mass of M87 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-947631