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Author Seetha, S. ♦ Ashoka, B. N. ♦ Joshi, S. ♦ Girish, V. ♦ Sagar, R. ♦ Chaubey, U. S. ♦ Gupta, S. K.
Source Aryabhatta Research Institute of Observational Sciences (ARIES)
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword roAp-CP-pulsations-stars ♦ HD 12098-HD 13038-HD 13079-HD 98851
Abstract The Naini Tal-Cape survey has been initiated to search for pulsations in chemically peculiar A and F type stars. Many of the magnetic A peculiar type stars exhibit rapid oscillations with periods ranging from 4-16 minutes. These stars are termed as rapidly oscillating Ap stars (roAp) stars. The oscillations are attributed to low order, high overtone p modes. In addition to the Ap stars, this region of the HR diagram also encompasses the non-magnetic 'Am' or metallic lines stars. Some of these Am stars exhibit low overtone δ Scuti type pulsations. The scientific motivation for a study of these oscillations is discussed along with the result on the variables discovered from the survey.
Part of series basi30-623
Educational Use Research
Education Level UG and PG
Learning Resource Type Article