a Search for X-Ray Emission from OGLE-1999-BUL-32: the Missing Link Between Stellar Mass and Supermassive Black Holes

Details a Search for X-Ray Emission from OGLE-1999-BUL-32: the Missing Link Between Stellar Mass and Supermassive Black Holes a Search for X-Ray Emission from OGLE-1999-BUL-32: the Missing Link Between Stellar Mass and Supermassive Black Holes

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1186v&link_type=abstract

Chandra Proposal ID #04400812

Physics

Chandra Proposal Id #04400812

Scientific paper

Straightforward interpretation of the spectacular new microlensing event OGLE-1999-BUL-32 indicates that the lens is either a 130 solar mass black hole at 500 pc or a 30 solar mass black hole at 6 kpc. We request a 50-ksec ACIS observation that will yield a limiting X-ray sensitivity which is more than two orders of magnitude deeper than the best existing limits. If detected, the observations would be powerful evidence for a class of isolated black holes with masses between those of stellar mass in X-ray binary systems and the supermassive black holes resident in the nuclei of galaxies.

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