1979/02/01 by M. Breger · 13 citations
Physics and Astronomy · Psychology · #Artificial intelligence #Astro and Planetary Science #Astronomy #Astrophysics #Cepheid variable #Computer science #Confusion #History and Developments in Astronomy #Instability #Instability strip #Physics #Psychology #Rotation (mathematics) #Stars #Stellar rotation #Stellar, planetary, and galactic studies
paper · pdf · doi:10.1086/130433
openalex publication_date 1979/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
An extensive review is given of the current status of our knowledge of the stars in the lower instability strip. Current problems are emphasized. Particular attention is given to the following areas: the confusion concerning naming and the implied astrophysical properties (often erroneous), single and multiple periods, the effect of rotation and metallicism on pulsation, the nature of the so-called dwarf cepheids, and pulsation in Ap stars. Various reports of unusal and strange effects are also discussed with personal, possibly biased judgment on their reality.