MgII H and K line observations of Delta Scuti variables

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

14

H Lines, K Lines, Magnesium, Spectral Line Width, Stellar Spectra, Variable Stars, Chromosphere, Iue, Scutum Constellation, Stellar Oscillations, Ultraviolet Spectra

Scientific paper

IUE observations of seven Delta Scuti variables and a comparison star are reported with a comparison of the Mg II h and k lines to those of previously observed normal stars. Evident chromospheric emission is observed in three Delta Scuti variables: tau Cyg, beta Cas and rho Pup. Possible emissions are suggested for omega-1 Eri (F2III), iota Cyg, tau Peg, and kappa-2 Boo. Values of the observed emission widths fit well in diagrams of emission width-absolute magnitude, which, if correct, confirms the suggestion by Kondo et al. (1977) of possible evidence of chromospheric emissions in late A stars. A possible relation between emission widths and periods of pulsation is also discussed.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

MgII H and K line observations of Delta Scuti variables does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with MgII H and K line observations of Delta Scuti variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MgII H and K line observations of Delta Scuti variables will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1014232

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.