Statistics – Computation
Scientific paper
Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...345...22s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 345, Oct. 1, 1989, p. 22-30.
Statistics
Computation
49
Computational Astrophysics, Cooling Flows (Astrophysics), Elliptical Galaxies, High Temperature Gases, Astronomical Models, Brightness Distribution, Emission Spectra, Luminosity, Steady State, X Ray Spectra
Scientific paper
A grid of cooling flow models for the hot gas in normal elliptical galaxies is calculated, including the loss of gas due to inhomogeneous cooling. The loss process is modeled as a distributed sink for the gas with the rate of loss being proportional to the local cooling rate. The cooling flow models with gas loss have smaller sonic radii, smaller inflow rates in their central regions, lower densities, and higher temperatures than homogeneous models. The reduction in the amount of hot gas flowing into the center of the models brings the models into much better agreement with the observed X-ray surface brightness profiles of elliptical galaxies. However, there is a large dispersion in the observed X-ray luminosities of ellipticals, and this cannot be explained by variations in the efficiency of gas loss. The gas-loss models have X-ray surface brightness profiles which are much less centrally peaked than the no-gas-loss models.
Ashe Gregory A.
Sarazin Craig L.
No associations
LandOfFree
Steady state cooling flow models with gas loss for normal elliptical galaxies 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 Steady state cooling flow models with gas loss for normal elliptical galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steady state cooling flow models with gas loss for normal elliptical galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1527803