Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...608..580b&link_type=abstract
The Astrophysical Journal, Volume 608, Issue 1, pp. 580-600.
Astronomy and Astrophysics
Astronomy
50
Sun: Helioseismology, Sun: Interior, Sun: Oscillations, Waves
Scientific paper
For time-distance helioseismology, it is important to establish the relationship between the travel times of acoustic waves propagating between different points on the solar surface through the solar interior and local perturbations to the sound speed in the propagation region. We use the Born approximation to derive a general expression for the linear sensitivity of travel times to local sound-speed perturbations in plane-parallel solar models with stochastic wave sources. The results show that the sensitivity of time-distance measurements to perturbations in sound speed depends on the details of the measurement procedure, such as the phase-speed filter used in typical time-distance data analysis. As a result, the details of the measurement procedure should be taken into account in the inversion of time-distance data. Otherwise, the inferred depths of perturbations may be incorrect.
Birch Aaron C.
Duvall Thomas L. Jr.
Kosovichev Aleksandr G.
No associations
LandOfFree
Sensitivity of Acoustic Wave Travel Times to Sound-Speed Perturbations in the Solar Interior 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 Sensitivity of Acoustic Wave Travel Times to Sound-Speed Perturbations in the Solar Interior, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensitivity of Acoustic Wave Travel Times to Sound-Speed Perturbations in the Solar Interior will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-890715