Computer Science
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157..381v&link_type=abstract
Communications in Asteroseismology, Vol.157, p. 381-382
Computer Science
1
Scientific paper
We present an analysis of about 400 high-resolution time-resolved VLT/UVES spectra of the eclipsing subdwarf binary system PG 1336 -018 - a rapidly pulsating subdwarf B primary in a short orbit with an M5 companion. We analysed the spectra of PG 1336 -018 with the aim to detect the pulsational signal of the primary in line-profile variations. After removing the domi- nant radial-velocity component inherent to the orbital motion, we computed cross-correlation functions for each individual spectrum and assumed these to approximate the average line profile. The dominant pulsation mode is detected in the cross-correlation functions and may lead to the first spectroscopic mode identification for this star.
Aerts Christine
Oreiro Raquel
Ostensen Roy
Telting John H.
Vučković Maja
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