Why is the Broad Line Region similar in all AGN?

Event Date: 

Wednesday, October 9, 2013 - 4:00pm

Event Location: 

  • Broida Conference Room 3302

Event Contact: 

Astro Seminar

Speaker:

Alexei Baskin

AGN are characterized by broad emission lines. The lines show similar properties from the lowest luminosity (10^39 erg/s) to the highest luminosity (10^47 erg/s) AGN. What produces this similarity over such a vast range of 10^8 in luminosity? Photoionization is inevitably associated with momentum transfer to the photoionized gas. I will describe how this mechanism can explain the universality of the BLR properties in AGN.