Localization of ''optically Dark'' GRBS with Slow too Observations.

Details Localization of ''optically Dark'' GRBS with Slow too Observations. Localization of ''optically Dark'' GRBS with Slow too Observations.

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1232g&link_type=abstract

Chandra Proposal ID #04500995

Physics

Chandra Proposal Id #04500995

Scientific paper

We propose to carry out a time-critical program of Chandra GTO observations of HETE-discovered GRBs that are "optically dark" (i.e. the ~50% of GRBs which have no readily-identified optical counterpart). Chandra will provide <1" afterglow localizations, identifing 4 out of ~8, or ~50%, of the optically dark GRBs that HETE will detect in CY2003, the final year of the HETE primary mission. Localizations will be made public within 24 hours and will be promptly (<10 days) followed up by pre-arranged HST observations. We have requested 50 ksec of Cycle 4 GTO time for 2 Fast TOOs. In the current proposal, we request an additional 180 ksec total for 2 GTO Slow TOOs. Slow TOOs are sufficient for GRBs with very bright afterglows or possibly for the little studied class of "X-ray rich" GRBs.

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