VIRTUELT | The black hole in the center of our galaxy

ATU NAT
Zoom | Deltag fra din pc
Du kan tilmelde dig dette arrangement, hvis du er fra årgang: 2019, 2020, 2021 – men du skal logge ind først.
Afdeling
Fyn
Sydjylland
Sidste tilmeldingsfrist
Fredag, 12. marts 2021 - 12:00

Naturvidenskabelig aktivitet, som giver indblik i den teoretiske fysiks forståelse af sorte huller i vores galakse.

The black hole in the center of our galaxy

w/Associate Professor Astrid Eichhorn & Master student Philipp-Vincent Johannsen, CP3-Origins, University of Southern Denmark

Black holes are fascinating objects in fundamental physics. This course will explain what a black hole is, why it is black and how one can find black holes. As a puzzle, we will see whether we can ourselves calculate how heavy the black hole in the center of our own galaxy is, by using observational data from one of 2020's Nobel prize winners in physics.

Further, we discuss a key concept from Einstein's theory of General Relativity, which describes black holes, namely how space and time curve. Very similar curved objects, namely membranes, form the central objects of experimental study in the biophysics lab we will visit and where we see how in physics similar concepts show up in very different areas, namely in the description of space, time and black holes, as well as membranes and cells.
 

Program

16.00 Welcome & presentation on the first topic: Getting to know black holes
  • What is a black hole? w/Astrid Eichhorn
16.20 Group exercises
  • Calculate the Schwarzschild radius at which earth and sun would become black holes. Also, calculate the radius of the supermassive black hole in the center of our own galaxy (Sgr A*) and discuss your result. Are black holes bigger or smaller than you expected?
16.40 Presentation
  • What types of black holes are there in our universe? How are black holes generated w/Philipp-Vincent Johannsen
17.00 Break
17.10 Presentation on the Second topic: How to find black holes?
  • Shadows and images of black holes w/Astrid Eichhorn
17.30 Group exercises
  • Calculate the mass of M 87 * from humanities' first ever image of a black hole
17.50 Dinner break
18.30 Presentation
  • What are gravitational waves? w/Astrid Eichhorn
18.45 Group exercises
  • Calculate the number of gravitons (the particles that mediate the gravitational force) in a gravitational wave. Are there more or less than you expected?
19.05 Presentation
  • How the black hole in the center of our own galaxy was found and why this led to the Nobel prize in physics in 2020 w/Astrid Eichhorn
19.20 Group exercises
  • How to calculate the mass of this black hole from the measurement data?
19.50 Wrap up & questions
20.00 Thanks & goodbye
 

MEDBRING: Papir, pen og lommeregner

PRAKTIK: Du vil få tilsendt link til den virtuelle afvikling af aktiviteten via e-mail.

Du sørger selv for mad og drikkelse til eventuelle pauser.

AFVIKLER: Kira - tlf. +45 5383 6945 mail: kira@atusyd.dk, kontaktes på dagen hvis du bliver forsinket eller forhindret på dagen.

 

  • Antal deltagere
    70
  • Type
    Valgfri