Establishing the True Nature of RX J0925.7-4758 with AXAF

Details Establishing the True Nature of RX J0925.7-4758 with AXAF Establishing the True Nature of RX J0925.7-4758 with AXAF

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop...13h&link_type=abstract

Chandra Proposal ID #01300218

Physics

Chandra Proposal Id #01300218

Scientific paper

This proposal is a continuation of a series of studies of the Supersoft Source RXJ0925.7-4758. Earlier studies involve spectra obtained by ROSAT, ASCA and Beppo-SAX. Many questions regarding the nature of RXJ0925.7-4758 have arisen that could not be answered using the available observations. This is due to the limited spectral resolution of ASCA SIS and Beppo-SAX LECS. We believe that the high spectral resolution of AXAF MEG/ACIS-S will definitively establish the true nature of RXJ0925.7-4758. Fitting grids of detailed model spectra, available to the investigators, will tightly constrain parameters like temperature, gravity and abundances. Thus we will be able to decide between a white dwarf, neutron star or black hole as a model for RXJ0925.7-4758.

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