April 4, 2023

Speaker: Nadine Neumayer (Max Planck Institute for Astronomy)

Contact Information: neumayer@mpia.de

Title:   

The build-up of galactic nuclei: how do black holes get there?

Abstract:  

The centers of massive galaxies are special in many ways, not least because apparently all of them host supermassive black holes. Since the discovery of a number of relations linking the mass of this central black hole to the large scale properties of the surrounding galaxy bulge it has been suspected that the growth of the central black hole is intimately connected to the evolution of its host galaxy. However, at lower masses, and especially for bulgeless galaxies, the situation is much less clear. Interestingly, these galaxies often host massive star clusters at their centers, and unlike black holes, these nuclear star clusters provide a visible record of the accretion of stars and gas into the nucleus. 

I will present our ongoing observing programme of the nearest nuclear star clusters, including the ones in our Milky Way and the Sagittarius dwarf galaxy. These observations provide important information on the formation mechanisms of nuclear star clusters, allow us to measure potential black hole masses and give clues on how black holes get to the centers of galaxies.

Visitor's room: Room 111A

Visit Schedule:

Monday (3 Apr. 2023):

• 10:00 a.m:  

• 10:30 a.m.: Astro-coffee at grand central

• 11:00 a.m.:  Galread

• 11:30 a.m.:  Galread

• 12:00 p.m.: 

• 12:30 p.m.: 

• 1:00 p.m.: 

• 1:30 p.m.: 

• 2:00 p.m.: 

• 2:30 p.m.: Eliot Quataert (127)

• 3:00 p.m.:

• 3:30 p.m.:

• 4:00 p.m.:

• 4:30 p.m.:

Tuesday (4 Apr. 2023):

• 9:30 a.m.: Jenny Greene (001)

• 10:00 a.m:  Andy Goulding (117)

• 10:30 a.m.: 

• 11:00 a.m.: Colloquium 

• 11:30 a.m.: Colloquium 

• 12:00 p.m.: Bahcall lunch

• 12:30 p.m.: Bahcall lunch

• 1:00 p.m.: Bahcall lunch

• 1:30 p.m.:  Jeremy Goodman (129)

• 2:00 p.m.: Tea Time with Grad Students in Grand Central

• 2:30 p.m.: Tea Time with Grad Students in Grand Central

• 3:00 p.m.: Goni Halevi (003)

• 3:30 p.m.:

• 4:00 p.m.:

• 4:30 p.m.: Jiaxuan Li

• 5:00 p.m.: Yilun Ma

Dinner Sign-up - add your name here:

Tuesday (4 Apr. 2023)

1. Speaker: Nadine Neumayer

2. Faculty Host: Jenny Greene

3. Postdoc Host: Rajsekhar Mohapatra

4. Jiaxuan Li

5. Yilun Ma

6.  Christian Kragh Jespersen

7. Shaunak Modak

8. He Jia

STUDENTS HAVE PRIORITY.

PLEASE NO MORE THAN 8 PEOPLE (it is more difficult to properly interact with the speaker in larger groups).