The mass profile and gas content of M87

Details The mass profile and gas content of M87 The mass profile and gas content of M87

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...278..536s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 278, March 15, 1984, p. 536-543. Research supported by the Royal Society.

Astronomy and Astrophysics

Astrophysics

195

Elliptical Galaxies, Galactic Structure, Intergalactic Media, Interstellar Gas, Mass Distribution, X Ray Sources, Gas Heating, Gas Temperature, Mass Flow Rate

Scientific paper

The structure of the hot gas and gravitating matter around M87 is constrained using both X-ray images and spectroscopic observations, particularly of the Fe L lines. The data are previously published results from the four focal plane instruments of the Einstein Observatory. Models in which the gravitating mass has a core radius of ≡25 kpc are favored, suggesting that the material is associated with M87 rather than with the Virgo cluster as a whole. The gas structure is consistent with a radiative accretion flow with a mass accretion rate that varies with radius as M≡ 3(R/10 kpc)2/3 M_sun; yr-1 from ≡1 to 70 kpc. About 1 M_sun; yr-1 flows into the central few arcsec of the galaxy.

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