Go Back   IceInSpace > General Astronomy > Radio Astronomy and Spectroscopy
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 28-07-2009, 06:10 PM
Merlin66's Avatar
Merlin66 (Ken)
Registered User

Merlin66 is offline
 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,927
Epsilon Aurigae - Robin verifies latest eclipse!

Robin Leadbeater has been monitoring the long period binary variable Eps Aur with his LHIRES spectroscope and has observed a redshift which indicates the start of the eclipse. The last such event was back in 1982.
Reported in IAU CBET 1885
EPSILON AURIGAE
> E. O. Waagen, AAVSO, writes that R. Leadbeater, Wigton, U.K., reported
> (via the AAVSO Discussion Group) the spectroscopic detection of the start
> of a predicted eclipse for the long-period binary star epsilon Aur. The last
> eclipse was in 1982-1984. A redshifted component in the K I 769.9-nm line
> has appeared in LHIRES III observations obtained on July 20.081 UT, offset by
> +15 km/s and with 62-mA equivalent width. This emerging feature is
> uniquely associated with eclipse phases, wherein visual light declines by 0.75 mag
Well done Robin!!!
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 10:24 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Astrophotography Prize
Advertisement
Bintel
Advertisement