Abstract
The excitation of radial pulsations in the hot extreme helium star V652 Her (BD+13°3224) is investigated by using new opacity tables given by Rogers & Iglesias. Unlike previous attempts using old opacities, it is found that the kappa mechanism caused by an opacity bump located where the temperature is about 2×10 5 K is strong enough to excite the fundamental radial pulsations in V652 Her. It is suggested that the iron abundance of V652 Her should be similar to the solar value
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
