Spectral line transfer effects in Lambdameter measurements of solar short-period oscillations

Details Spectral line transfer effects in Lambdameter measurements of solar short-period oscillations Spectral line transfer effects in Lambdameter measurements of solar short-period oscillations

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...114...85d&link_type=abstract

Astronomy and Astrophysics, vol. 114, no. 1, Oct. 1982, p. 85-94.

Astronomy and Astrophysics

Astrophysics

5

Line Spectra, Power Spectra, Solar Atmosphere, Solar Oscillations, Solar Spectra, D Lines, Spectrum Analysis

Scientific paper

Lambdameter records with different exit-slit settings yield power spectra of short period oscillations in the solar atmosphere, observed in the Na D(1) line and medium strong Fe I line, whose structure is notably stable with regard to slit geometry changes. By means of short period wavetrain numerical modeling, it is demonstrated that while such a structure in the power spectra of photospheric lines is absent for rms wave amplitudes lower than about 0.1 km/sec, it emerges with higher amplitudes as a consequence of nonlinearities in the line transfer process. It is emphasized that the nonlinear effect presently investigated must also be considered in stronger chromospheric lines. Linear correction factors cannot be applied to the observed power in order to deduce the energy flux carried by the acoustic waves if nonlinear effects are the only source of the observed spectral pattern.

Affiliated with

Also associated with

No associations

Rating

Spectral line transfer effects in Lambdameter measurements of solar short-period oscillations 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 Spectral line transfer effects in Lambdameter measurements of solar short-period oscillations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectral line transfer effects in Lambdameter measurements of solar short-period oscillations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1028422