Prospects for Detecting Primordial Black Hole Haloes Around Massive Objects

Details Prospects for Detecting Primordial Black Hole Haloes Around Massive Objects Prospects for Detecting Primordial Black Hole Haloes Around Massive Objects

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.179b&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We analyze capture of cold dark matter species, especially primordial black holes (PBHs), in haloes around gravitationally bound objects during their formation, as well as the probability of detecting an isolated PBH bound to the Sun. The total mass of the halo and its luminosity due to Hawking emission are found for PBH haloes around old globular clusters, dark matter clusters and Population III stars. Large (M >= 10^5 Modot) nearby (within 5 kpc) globular clusters provide the best prospects for detection of PBHs, since their PBH haloes have the highest brightness which is within the reach of EGRET capabilities. The specific observational feature of PBH-produced gamma-ray halo around globular clusters is the dim central part - the signature of dark matter component.

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