AZ Cas spectra at ingress

Announcement: New Forums

We are excited to announce the launch of our new forums! You can access it forums.aavso.org. For questions, please see our blog post. The forums at aavso.org/forum have become read-only.

The AAVSO office will be closed or have minimal staffing from Dec 25th through January 1st, so responses may be slow. We apologize for any inconvenience and wish everyone a Happy Holiday!

Affiliation
British Astronomical Association, Variable Star Section (BAA-VSS)
Mon, 11/19/2012 - 16:14

Spectra of AZ Cas taken in the blue are showing dramatic changes associated with impending ingress. (see attached raw spectra)  Absorption lines from the outer atmosphere of the M star have appeared superimposed on the M star spectrum.

Robin

www.threehillsobservatory.co.uk

File Upload
Affiliation
British Astronomical Association, Variable Star Section (BAA-VSS)
AZ Cas spectra at ingress

That should read of course

..... superimposed on the B star spectrum

 

(Why is there  facilty for editing posts on this forum and why do I have to re-enter the thread title??)

 

Robin