The solar limb effect - Observations of line contours and line shifts

Details The solar limb effect - Observations of line contours and line shifts The solar limb effect - Observations of line contours and line shifts

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976mnras.177..687a&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 177, Dec. 1976, p. 687-708.

Physics

29

Absorption Spectra, Red Shift, Solar Limb, Solar Spectra, Solar Spectrometers, Doppler Effect, Iron, Limb Darkening, Solar Observatories, Solar Physics, Spectral Line Width, Spectroheliographs, Spectrum Analysis

Scientific paper

An attempt is made to report observations of the solar limb effect for three Fe I lines in the 6300-A region. Measurements were made at precise radial distances with a high-resolution low-noise photoelectric spectrometer in order to establish stable aspects of the absorption-line contours and shifts, depending only on the distance of the observation point from the disk center. Changes in line contours and symmetries are related to line shifts across the disk, and the limb effect as well as the solar redshift are determined for the line peaks. It is found that the asymmetry curves of the lines show the typical 'c' shape at the disk center, the asymmetries and line widths in limb spectra apparently have no systematic dependence on solar latitude, and the peak intensity in all three lines increases as the observation point moves across the disk. The center-limb behavior of the median limb-effect curves for two lines are shown to be very similar. Some theoretical interpretations of the limb effect are discussed, particularly streaming effects.

Affiliated with

Also associated with

No associations

Rating

The solar limb effect - Observations of line contours and line shifts 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 The solar limb effect - Observations of line contours and line shifts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The solar limb effect - Observations of line contours and line shifts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1051549