Cosmophysics Seminar (Dr. Naohisa Igata)

Abstract

When lights orbiting around a black hole reach an observation point, they form a photon ring that outlines the black hole shadow. In this talk, we focus on the polarization pattern on a photon ring formed by linearly polarized lights and show how it depends on the spin parameter of the black hole and the inclination angle of the rotation axis. We clarify the relationship between polarization propagation and hidden symmetry in the Kerr spacetime, such as the Killing-Yano symmetry, and consider the gravitational Faraday rotation, which is a rotation of the polarization plane due to the gravitational field during propagation.

• Conference
  Conference/Workshop23 Workshops hosted by KEK0
• Colloquium
  KEK Colloquium2 Theory Colloquium0 IMSS Colloquium0
• Seminar
  IPNS Seminar3 Physics Seminar9 Theory Seminar52 Detector Seminar0 IMSS Seminar2 ACC Seminar22 ACC-Physics Seminar0 PF Seminar0 放射光セミナー0 Open-Itセミナー0 技術セミナー0 低温工学センターセミナー0 測定器開発室セミナー3 Cosmophysics Seminar9 J-PARC素粒子原子核セミナー0 Joint Seminar2 CRC Seminar0
• 談話会・交流会
  物構研談話会1 技術交流会0 講義0 公聴会0 講習会0