Astrophysical Black Holes: A Rapidly Moving Field

Session

Black hole physics in the EHT era

24 Jun 2023, 14:00

University of Hong Kong, Centennial Campus, CPD 3.04

68. Connecting the branches to the roots: confronting long-standing questions about jet physics in the global VLBI/EHT era

Prof. Sera Markoff

24/06/2023, 14:00

Talk

Black hole jets are a challenging puzzle, as they require insights over a range of scales impossible to capture with any one method. Somehow effects playing out at galactic scales are rooted in microphysical processes occurring just outside an event horizon, that somehow also determine the formation of special regions where particle acceleration preferentially occurs. Thanks to global very...

41. A Closer Look: Modeling Emission in M87 Down to the Horizon-Scale with Positrons

Prof. Richard Anantua (University of Texas at San Antonio)

24/06/2023, 14:35

Talk

With the advent of sub-mm imaging of black hole shadows by the Event Horizon Telescope starting in 2019 with M87*, we are now in a position to infer physical mechanisms powering systems such as M87 (including its relativistic jet) down to the horizon-scale using phenomenological models. First, a self-similar, stationary, axisymmetric jet model based on a force-free flow in a High Accuracy...

62. A Black Hole Closeup: Enhancing Black Hole Science with the ngEHT and Space

Prof. Paul Tiede (CfA, Harvard & Smithsonian)

24/06/2023, 15:10

Talk

After over a century since their initial mathematical description, black holes and their surroundings remain poorly understood. In April 2019, the Event Horizon Telescope released the first image of a black hole, bringing the nature of physics at horizon scales into focus. This talk will detail how additional telescopes will enhance fainter features of black holes, their surrounding...

11. Investigating jet physics via the joint modelling of Event Horizon Telescope images and multi-wavelength observations

Ms Wanga Mulaudzi (Anton Pannekoek Institute for Astronomy)

24/06/2023, 15:45

Talk

A key characteristic of some active galactic nuclei (AGN), such as radio galaxies, is that they possess powerful jets that can extend through or beyond their host galaxy. However, the exact mechanisms of their launch and their internal properties are still not well understood. In this talk, I will focus on Event Horizon Telescope (EHT) and multi-wavelength image and spectral observations of...