A Parallax Probe for MACHOs in GRB Multi-Wavelength Counterparts

Details A Parallax Probe for MACHOs in GRB Multi-Wavelength Counterparts A Parallax Probe for MACHOs in GRB Multi-Wavelength Counterparts

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.8304n&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #83.04; Bulletin of the American Astronomical Society, Vol. 29, p.1347

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Scientific paper

Simultaneous photometry of compact cosmological sources by widely separated observers could, in theory, be used to probe the density of compact objects in the universe, including a universal distribution of MACHOs. These compact objects would create a slightly different gravitational lens amplification between the two observers, recoverable with sufficiently sensitive photometry. An expanding source would be expected to damp the lens-induced brightness difference when it becomes larger than the Einstein ring of the lens. Optimal, although perhaps ambitious, observing scenarios will be discussed for GRB multi-wavelength counterparts.

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