Peter Barthel's Homepage


Peter Barthel is astrophysics professor at the Kapteyn Institute of the University of Groningen, and furthermore Director of its Pre-University Academy


The Astronomer (Johannes Vermeer, 1668):




TWINKLE, TWINKLE, QUASI-STAR

Twinkle, twinkle, quasi-star
Biggest puzzle from afar
How unlike the other ones
Brighter than a billion suns
Twinkle, twinkle, quasi-star
How I wonder what you are.

(G. Gamow, 1964)



Contents:


Lost in (AGN) space?
How about some course work?

Active Galactic Nuclei (2003)

Sterrenkunde 1A (2005)

Starburst galaxies (2010)




Email: pdb@astro.rug.nl