Dissecting Accretion Disks
Abstract
We will use microlensing, where the stars in a lens galaxy magnify the accretion disk of a lensed quasar, to measure the sizes of the X-ray emission regions of 6 gravitationally lensed quasars with well-sampled optical light curves. For RXJ1131-1231 and Q2237+0305, where we have already measured the average 0.4-8 keV band X-ray size to be comparable to the inner edge of the accretion disk, we will use longer observations in order to measure the X-ray energy dependence of the size. For PG1115+080 and HE1104-1805, we will extend their X-ray light curves to get an accurate 0.4-8 keV size measurement. For the last two systems, QJ0158-4325 and SDSS1004+4112, we will evaluate whether they are good candidates for measuring the size of the X-ray emission region with microlensing.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2007
- Bibcode:
- 2007cxo..prop.2430K
- Keywords:
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- Chandra Proposal ID #09700477