천문학회보 (The Bulletin of The Korean Astronomical Society)

한국천문학회 (The Korean Astronomical Society)
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Gravitational Lensing by an Ellipsoid with a Supermassive Black Hole

  • Kim, Donghyeon (Department of Astronomy and Atmospheric Sciences, Kyungpook National University) ;
  • Park, Myeong-Gu (Department of Astronomy and Atmospheric Sciences, Kyungpook National University)
  • 발행 : 2016.04.12
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초록

Gravitational lensed quasar systems are usually modelled by a source quasar lensed by an isothermal sphere galaxy. But most galaxies are elliptical and have a supermassive black hole (SMBH) at its center. We study lensing by an ellipsoid with a central SMBH to investigate the additional lensing effects of a SMBH on the number, position, and magnification of lensed images. We apply the analysis to the observed lens system Q0957+561, and explore the possibility of testing the existence of SMBH at the center of the lensing galaxy.

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