Acis-Hetg Observations of GRS1915+105: a Micro Bal-Quasar ?

Details Acis-Hetg Observations of GRS1915+105: a Micro Bal-Quasar ? Acis-Hetg Observations of GRS1915+105: a Micro Bal-Quasar ?

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop...61l&link_type=abstract

Chandra Proposal ID #01400453

Computer Science

Chandra Proposal Id #01400453

Scientific paper

Previous ASCA observations of the X-ray transient GRS1915+105 have revealed prominent absorption lines from highly ionized iron, possibly due to a photoionized wind from the putative black hole accretion disk. We propose to perform high resolution spectroscopy of the iron line complex via a 30ksec ACIS-S/HETG observation. The line of sight velocity and velocity dispersion of the absorbing matter will be accurately measured, and the P-Cygni profiles (confirming the presence of a wind) will be sought. By aligning the ACIS-S with the axis of the known jet, we will be sensitive to any multiple-arcminute scale structure in this jet. We also aim to propose for RXTE observations which will compliment this study by constraining the geometry/structure of the disk/corona system.

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