6533b7d7fe1ef96bd12683c3
RESEARCH PRODUCT
Signatures of pulsations and mass loss in the spectra of post-AGB stars
Olesja SmirnovaJulius SperauskasAija LaureLaimons Začssubject
PhysicsT Tauri starStarsSpace and Planetary ScienceK-type main-sequence starStellar mass lossAstronomy and AstrophysicsAstrophysicsSpectral linedescription
AbstractThe results of high-resolution spectroscopy and radial velocity monitoringa are presented for selected post-AGB candidate stars. Time series of high-resolution spectra for HD235858 shows spliting of low-excitation atomic lines and significant changes in the intensity of C2 and CN lines originated in the extended atmosphere significantly affected by pulsations and outflow. Mass ejection was confirmed for cool R CrB candidate stars DY Per, V1983 Cyg, and V2074 Cyg.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-07-01 | Proceedings of the International Astronomical Union |