Computer Science – Sound
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004natur.430...51m&link_type=abstract
Nature, Volume 430, Issue 6995, pp. 51-53 (2004).
Computer Science
Sound
115
Scientific paper
Pressure-driven (p-mode) oscillations at the surface of the Sun, resulting from sound waves travelling through the solar interior, are a powerful probe of solar structure, just as seismology can reveal details about the interior of the Earth. Astronomers have hoped to exploit p-mode asteroseismology in Sun-like stars to test detailed models of stellar structure and evolution, but the observations are extremely difficult. The bright star Procyon has been considered one of the best candidates for asteroseismology, on the basis of models and previous reports of p-modes detected in ground-based spectroscopy. Here we present a search for p-modes in 32 days of nearly continuous photometric satellite-based observations of Procyon. If there are p-modes in Procyon, they must have lifetimes less than 2-3 days and/or peak amplitudes <15 parts per million, which defy expectations from the Sun's oscillations and previous theoretical predictions. Target selection for future planned asteroseismology space missions may need to be reconsidered, as will the theory of stellar oscillations.
Guenther David B.
Kuschnig Rainer
Matthews Jaymie M.
Moffat Anthony F. J.
Rucinski Slavek M.
No associations
LandOfFree
No stellar p-mode oscillations in space-based photometry of Procyon 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 No stellar p-mode oscillations in space-based photometry of Procyon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and No stellar p-mode oscillations in space-based photometry of Procyon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1727038