Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mnras.269l..33f&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 269, 33
Astronomy and Astrophysics
Astronomy
16
Scientific paper
Recent evidence for microlensing of stars in the Large Magellanic Cloud indicates that a significant part of the dark matter in the Galactic halo may be baryonic and consist of substellar objects. Some mechanism is required to form such a distributed halo of low-mass objects. Here, we investigate the possibility that our Galaxy, and possibly most large galaxies, was once surrounded by a cooling flow. Such a flow is commonly observed around the brightest member of a cluster of galaxies, and is inferred to deposit mostly low-mass objects. tf the dark haloes of the most massive cluster galaxies have a large population of low-mass objects formed in this way, then so may lower mass galaxies, such as our own. We show that a strong cooling-flow phase could have occurred during the formation of our Galaxy. Key words: Galaxy: halo - cooling flows - Magellanic Clouds - dark matter - gravitational lensing.
Fabian Andrea C.
Nulsen Paul E. J.
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