Star Formation Close to and Accretion onto the Supermassive Black Hole Sgr A*
by
Farhad Yussef-Zadeh(Northwestern University)
→
Europe/Stockholm
FB55
FB55
Description
The environment of Sgr A* provides a window to close-up study of star formation under extreme physical conditions. A critical question regarding star formation near supermassive black holes (SMBHs) is whether tidal shear in the
vicinity of SMBHs is able to completely suppress star formation or induce star formation. There are currently two
modes of star formation that are considered to explain the origin of young stars near Sgr A*. One is the standard
cloud-based mode of star formation. The other is a disk-based mode of star formation, which explains the disk of stars
orbiting Sgr A*. I will present recent observations and discuss these modes of star formation applied to the region
within 0.5 pc of Sgr A* and beyond the nuclear cluster. In addition, I will discuss a viable mechanism to explain
the origin of the Fermi bubble resulting from gas accretion onto Sgr A* around the same time that young OB stars
were formed near Sgr A*.
