Temporal Evolution of Transient Type i Bursters in Quiescence

Details Temporal Evolution of Transient Type i Bursters in Quiescence Temporal Evolution of Transient Type i Bursters in Quiescence

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..179b&link_type=abstract

Chandra Proposal ID #01400882

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Chandra Proposal Id #01400882

Scientific paper

We propose TOO monitoring observations with ACIS-S-BI of Aql X-1, the Rapid Burster, and one other type-I bursting transient in quiescence following an outburst. Heat deposited in the deep neutron star (NS) crust during outburst diffuses out on a timescale (about a year) which scales as the fourth power of the NS radius. Temporal evolution will thus provide an observational handle on the NS radius. Our data will be analyzed using realistic emergent spectra, thus obtaining a second, independent radius constraint. We also request one LETG+HRC-S observation directly after an outburst for Aql X-1 and the "other" object (if it has a low Av) to search for the 549 Hz pulse period (in Aql X-1) and the possible presence of metals in the thermal NS atmosphere.

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