astrolunch: Tomohisa Kawashima (Institute for Cosmic Ray Research/U. Tokyo)

Date: 
Tue, 12/01/2021 - 12:30 to 13:30

Title: Probing black-hole spacetime, dynamics of accretion flow and relativistic jet with general relativistic multi-wavelength radiative transfer


Abstract: The Event Horizon Telescope (EHT) detected the shadow of the supermassive black hole (BH) in M87. This provided powerful evidence of the presence of supermassive BH and the BH mass was estimated to be ~6.5 billion solar mass. The value of the BH spin is still uncertain, because the BH spin weakly affects the morphology of the BH shadows. In addition, the direct images of the accretion flow and the relativistic jet have not yet been detected due to the current ability of the EHT. Towards the future EHT and multi-wavelength observations from radio to gamma-ray band, we calculate the images and multi-wavelength spectra of accretion flows and relativistic jets of supermassive black holes including the BH shadows, in order to constrain the BH spacetime and to reveal the dynamics of accretion flows and relativistic jets.
 
Zoom link: 
https://huji.zoom.us/j/84740565269?pwd=R2o3Vk9BUFRGZ0hzT3B6Zm9USmthQT09
Meeting ID: 847 4056 5269
Passcode: w31c0m3