Line-profile variation in Herculis
Seiji Masuda and
Received 23 December 1998 / Accepted 31 January 2000
Based on a time series of high-resolution spectra at HeI 4471 and MgII 4481, we have detected the line-profile variation of Her, one of the newly discovered Slowly Pulsating B Stars by Hipparcos.
A period analysis has been performed for the radial velocities of MgII 4481. A best estimated period of 1.17 d or its one-day alias 0.536 d is different from its photometric period (1.25 d) derived from the Hipparcos mission.
Key words: line: profiles stars: early-type stars: oscillations stars: variables: general stars: individual: o Her
Send offprint requests to: S. Masuda
© European Southern Observatory (ESO) 2000
Online publication: March 28, 2000