An X-ray microlensing test of AU-scale quasar disk structure

A. Yonehara, S. Mineshige, T. Manmoto, J. Fukue, M. Umemura, E. L. Turner

Research output: Contribution to journalArticlepeer-review


The innermostregion of quasars can be resolved by microlensing on scales down to a few AU. For this purpose, X-rays originating from the innermost regions can be selectively amplified by microlensing resulting from the "caustic crossing" events, and observations at X-ray bands are most preferable. If the observation has been done, lower limits of black hole mass will be determined, because information about gravitational potential of the black hole which is surrounded by accretion disk will be obtained.

Original languageEnglish (US)
Pages (from-to)493-496
Number of pages4
JournalAdvances in Space Research
Issue number3-4
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science
  • General Earth and Planetary Sciences


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