Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...254..242s&link_type=abstract
Astrophysical Journal, Part 1, vol. 254, Mar. 1, 1982, p. 242-262.
Astronomy and Astrophysics
Astrophysics
55
Cepheid Variables, Stellar Oscillations, Stellar Spectra, Line Spectra, Radial Velocity, Velocity Distribution
Scientific paper
The analysis of line profile variations, which provides information about the instantaneous distribution of velocities across the stellar disk, is applied to a sample of Delta Scuti stars. The stars 44 Tauri, 28 Andromedae, 20 Canum Venaticorum, Delta Delphini, 1 Monocerotis, Delta Scuti, 28 Aquilae, and 14 Aurigae A are mode-typed as radial or nonradial pulsators and evidence for rotational splitting and against frequency-modulation in Delta Scuti binaries is presented. In one star frequency-modulation remains a viable hypothesis. The spectroscopic/photometric ratios correlate with the dominant radial mode designated from line-profile analysis. The oscillations of Delta Scuti stars are found to be adiabatic, and this allows the l-orders for dominantly nonradial stars to be identified.
No associations
LandOfFree
Pulsational mode-typing in line profile variables. IV - Selected Delta Scuti stars 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 Pulsational mode-typing in line profile variables. IV - Selected Delta Scuti stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsational mode-typing in line profile variables. IV - Selected Delta Scuti stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1015309