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davepamn

M¢25 Funded By Mahalo ? | June 11, 2009 08:43 PM

Describe the attributes of WR25 as seen by the Spitzer Space Telescope.

What did scientist see?

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badaspie

July 18, 2009 08:05 AM

I can't find any reports or images indicating that the Spitzer Space Telescope has observed WR25, but Hubble and the XMM-Newton x-ray observatory have. WR25 is a Wolf-Rayet star, a massive supergiant near the end of its life which has lost its remaining hydrogen due to intense stellar winds; in effect, it's the exposed helium core of a pre-supernova. The XMM-Newton observations support previous observations indicating that WR25 is a binary star, consisting of the Wolf-Rayet primary and a smaller, dimmer companion (which is still an O-class main-sequence star over 20 times more massive than the sun).

Hubble's view of WR25 (the bright blue star at the center of the image):

http://www.astronomyreport.com/Images/112484216.jpg
Source(s):
http://www.scientificblogging.com/news_releases/wr_25_and_tr16244_previousl...
http://adsabs.harvard.edu/abs/2006A&A...445.1093P
http://en.wikipedia.org/wiki/Wolf-Rayet_star

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Tags: xmm-newton, hubble, wr25

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