![sara_issaoun_headshot](/physics-astronomy/sites/default/files/uploads/images/sara_issaoun-dva.jpg)
Talk title and abstract
Our supermassive black hole Sagittarius A* across the radio band
Last Spring, the Event Horizon Telescope collaboration revealed the first images of the shadow of our Milky Way supermassive black hole, Sagittarius A* (Sgr A*). Since its detection in the mid-70s, this bright radio source in the Galactic Center was shrouded in a veil of mystery. The Nobel-awarded stellar orbits research in the Galactic Center pinned down its mass and distance, showing evidence of an extremely compact 4 million-solar-mass object at the heart of our Galaxy. The EHT then provided the first direct evidence that this object is indeed a black hole and resolved its shadow for the first time. In this talk, I will explain the challenges of imaging Sgr A* and how these were overcome by the EHT, and I will walk through important milestones of discovery across the radio band that laid the foundation for the first image of our black hole.
This
will
be
a
hybrid
seminar.
If
you
would
like
to
join
in
person,
please
meet
in
the
Physics
building
(Room
308).
Would
you
like
to
join
this
seminar
via
Zoom?
Please email WCA.