Tuesday, January 16, 2007

White (but Not Nerdy) Dwarfs


I heard a cool talk today by Ted von Hippel from the University of Texas. His seminar dealt with disks around white dwarfs. This subject began twenty years ago with a paper by Zuckerman and Becklin titled Excess infrared radiation from a white dwarf - an orbiting brown dwarf? The answer was no - the IR emission appears to arise from a dusty ring around G29-38. Five such dust disks around white dwarfs are now known. More tomorrow!

8 Comments:

Anonymous Anonymous said...

Ah! While talking to a friend here at work (who's a big fan of Weird Al) I finally figured out the Weird Al reference!!

It is interesting to ponder, how do you form a disk of debris around a white-but-not-nerdy dwarf??

Cheers,

JoSe'L

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