A discussion of the long period R Coronae Borealis stars is presented. The constraints on theoretical models imposed by their age, kinematics and distribution led to difficulties in formulating an evolutionary sequence to the formation of this type of star. Several types of models are investigated and the results given.
CY - Berlin, Heidelberg DO - 10.1007/3-540-09994-8_14 N2 -A discussion of the long period R Coronae Borealis stars is presented. The constraints on theoretical models imposed by their age, kinematics and distribution led to difficulties in formulating an evolutionary sequence to the formation of this type of star. Several types of models are investigated and the results given.
PB - Springer Berlin Heidelberg PP - Berlin, Heidelberg PY - 1980 SN - 978-3-540-39297-2 SP - 161 EP - 168 TI - Pulsation of high luminosity helium stars ER -