Computer Science
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1170..483d&link_type=abstract
STELLAR PULSATION: CHALLENGES FOR THEORY AND OBSERVATION: Proceedings of the International Conference. AIP Conference Proceedin
Computer Science
2
Pulsations, Oscillations, And Stellar Seismology, Low-Amplitude Blue Variables, Photometric, Polarimetric, And Spectroscopic Instrumentation
Scientific paper
The double-lined binary HD 147787 has been observed from three southern observatories to gather a time series of high-quality, high-resolution spectroscopic data. We here report upon the first analysis of the 2008 data obtained with the spectrographs HARPS and HERCULES. An eccentric orbit of 39.880(2) days was obtained. For the primary component. we derived a projected rotational velocity νsin i of 7(2) km s-1 and found that the temporal changes of the line profiles are dominated by 0.6897(8) d-1, which is the main frequency known from photometry. There is evidence for multiperiodicity. For the secondary component, we derived a νsin i of 33(2) km s 1, but there is no firm evidence for pulsations.
de Cat Peter
Kilmartin Pam M.
Laney Dave
Maisonneuve Florian
Pollard Karen R.
No associations
LandOfFree
Is HD 147787 a double-lined binary with two pulsating components? Preliminary results from a spectroscopic multi-site campaign does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Is HD 147787 a double-lined binary with two pulsating components? Preliminary results from a spectroscopic multi-site campaign, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is HD 147787 a double-lined binary with two pulsating components? Preliminary results from a spectroscopic multi-site campaign will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1272036