Black holes and local dark matter

Details Black holes and local dark matter Black holes and local dark matter

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300..492h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 300, Jan. 15, 1986, p. 492-495. NASA-DOE-USAF-supported research.

Astronomy and Astrophysics

Astrophysics

17

Black Holes (Astronomy), Galactic Structure, Interstellar Matter, Missing Mass (Astrophysics), Luminosity, Mass Ratios, Metallicity

Scientific paper

Two independent constraints are placed on the amount of dark matter in black holes contained in the galactic disk. First, gas accretion by black holes leads to X-ray emission which cannot exceed the observed soft X-ray background. Second, metals produced in stellar processes that lead to black hole formation cannot exceed the observed disk metal abundance. Based on these constraints, it appears unlikely that the missing disk mass could be contained in black holes. A consequence of this conclusion is that at least two different types of dark matter are needed to solve the various missing mass problems.

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