new Be star ABE-98 HD219523 is NOT in emission
Posted: Sat Sep 27, 2014 4:43 pm
I took a look at HD219523 last night (high resolution H alpha). It is another of the 128 newly published Be stars (ABE-98)
http://arxiv.org/abs/1409.4668
http://www.spectro-aras.com/forum/viewt ... =920#p4177
I was surprised to find no evidence of emission.
The original paper measured the H 11 Brackett line in the IR, not H alpha. Has the activity changed since the spectrum in the paper was taken? (only one spectra was taken of this object by the APOGEE team) or can Be stars show Brackett line emission but no emission at H alpha?
Cheers
Robin
http://arxiv.org/abs/1409.4668
http://www.spectro-aras.com/forum/viewt ... =920#p4177
I was surprised to find no evidence of emission.
The original paper measured the H 11 Brackett line in the IR, not H alpha. Has the activity changed since the spectrum in the paper was taken? (only one spectra was taken of this object by the APOGEE team) or can Be stars show Brackett line emission but no emission at H alpha?
Cheers
Robin