Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..416..325n&link_type=abstract
Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21 ASP Conference Series, Vol. 416, proceedings
Astronomy and Astrophysics
Astronomy
1
Scientific paper
It has been established that the noise in Doppler velocity measurements obtained by resonant scattering spectrometers varies with season of the year and, of course, with instrument conditions. For example, recent analysis has characterized the noise in data taken by the Global Oscillations at Low Frequencies (GOLF) instrument on the ESA/NASA satellite SoHO, which shows seasonal variation and a secular increase associated with the degradation of GOLF's photomultiplier tubes. Using the noise characteristics it is possible to generate power spectra using the weighted sine-wave fit technique often employed in asteroseismic work. This paper presents the first analyses of such weighted power spectra, which have been generated from several years of GOLF data, and compares the results generated by more commonly employed unweighted transform techniques.
Chaplin William
Elsworth Yvonne
Fletcher Sally
Garcia Rafael A.
New Roger
No associations
LandOfFree
Analysis of GOLF Power Spectra Weighted to Account for Noise Variations Through the Data Set 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 Analysis of GOLF Power Spectra Weighted to Account for Noise Variations Through the Data Set, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of GOLF Power Spectra Weighted to Account for Noise Variations Through the Data Set will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1111102