HR Lyr emission lines

Forums Spectroscopy A spectrum of HR Lyr HR Lyr emission lines

Robin Leadbeater

Hi Gary,

ATel 9418 makes the suggestion that the H alpha emission at least  may be present at times weakly even in the normal quiescent state and stays at the same absolute strength but becomes more obvious as the continuum drops (ie constant flux but increasing Equivalent Width relative to the continuum)  My spectrum is not really good enough to confirm this though.

I did also have a try with the ALPY at normal resolution (Thanks to the support from the Harold Rildley grant I now have the capability to switch resolution more easily) but the SNR at this magnitude is too poor to show any more than the general continuum shape. I wonder if the Asiago team are still keeping an eye on it with the 1.2m telescope?