Imprints of Gravity on the Black Hole Images

Hung-Yi Pu^1,2,3*

¹Department of Physics, National Taiwan Normal University, Taipei, Taiwan
²Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan
³Center of Astronomy and Gravitation, National Taiwan Normal University, Taipei, Taiwan

* Presenter:Hung-Yi Pu, email:hypu@gapps.ntnu.edu.tw

The nature of black hole reveals how gravity works in the fundamental level. With the observation of event horizon scale image of astronomical black holes in recent years, a novel way for exploring the strong gravity regime now becomes possible. What can we learn from the shadow images cast by black holes surrounding with luminous materials? How the the image vary with the properties of those environment? In this talk, modeling black hole image with effects of astronomical environments and effects of different background spacetime will be discussed.

Keywords: black hole shadow, accretion, radiative transfor, gravity theory