Atmospheric kinematics of high velocity long period variables

Details Atmospheric kinematics of high velocity long period variables Atmospheric kinematics of high velocity long period variables

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.198..483w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 198, Feb. 1982, p. 483-516.

Astronomy and Astrophysics

Astronomy

22

Kinematics, Radial Velocity, Shock Waves, Stellar Atmospheres, Variable Stars, Velocity Distribution, Absorption Spectra, Line Spectra, Opacity, Rayleigh Scattering, Spectrum Analysis, Stellar Models

Scientific paper

Radial velocities of atomic absorption lines of three long-period variables, RT Cyg, Z Oph, and S Car, have been analyzed in order to understand velocity gradients and discontinuities in their atmosphere. The data were analyzed to yield the velocity discontinuity across shock waves and velocity gradients between shock waves. Near maximum light the radial velocities cannot be understood by the presence of one shock only but rather require two shocks; the lower shock becomes apparent at the longer wavelengths. The ability to see more deeply into the atmospheres of long-period variables at long wavelengths indicates that the opacity decreases rapidly with wavelength. This is probably due to the importance of Rayleigh scattering as an opacity source. Consistent parameters are obtained if these stars are fundamental mode pulsators with total masses in the range of 0.5-1.0 solar mass and effective radii in the range of (0.85-1.5) x 10 to the 13th cm.

Affiliated with

Also associated with

No associations

Rating

Atmospheric kinematics of high velocity long period 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 Atmospheric kinematics of high velocity long period variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atmospheric kinematics of high velocity long period variables will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1647996