Halo Microlenses, Remnants, and Gamma-ray Bursts

Details Halo Microlenses, Remnants, and Gamma-ray Bursts Halo Microlenses, Remnants, and Gamma-ray Bursts

Apr 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aps..apr.a1215f&link_type=abstract

American Physical Society, APS/AAPT Joint Meeting, April 18-21, 1997, abstract #A12.15

Physics

Scientific paper

We discuss the connection between the halo microlensing results and γ-ray bursts (GRB). The microlensing events seen towards the LMC suggest that a significant fraction of halo could be white dwarfs. The formation of these remnants would probably have been accompanied by the creation of a population of halo neutron stars and/or white dwarf binaries, which could be candidate sites for the origin of Galactic GRBs. Assuming the burster and microlensing populations have this common origin, we explore the implications for galaxy evolution, and point out the role of the halo model and halo intial mass function. We discuss the predictions of a particular galaxy formation model which produces a remnant dominated halo. For this model, we discuss constraints on the GRB candidate burst rate, number, age, velocity dispersion, and spatial distribution.

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