Effects of granular convection in the response of C I 5380 A to solar luminosity variations

Details Effects of granular convection in the response of C I 5380 A to solar luminosity variations Effects of granular convection in the response of C I 5380 A to solar luminosity variations

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...237..999l&link_type=abstract

Astrophysical Journal, Part 1, vol. 237, May 1, 1980, p. 999-1007.

Astronomy and Astrophysics

Astrophysics

2

Carbon, Convection Currents, Line Spectra, Luminous Intensity, Periodic Variations, Solar Granulation, Solar Spectra, Solar Atmosphere, Spectrographs, Velocity Distribution

Scientific paper

The response of the weak solar photospheric neutral carbon line at 5380.3 A to percolations of photospheric granulation and the five-minute solar oscillations is investigated in order to calibrate the sensitivity of the line to temporal variations in solar luminosity. Line strength variations and simultaneous continuum variations in two granular regions were observed at 30 sec intervals using a 25-cm coude spectrograph. The response of line equivalent width to continuum intensity variations is found to be essentially uniform at time scales ranging from 5 min to 2 hr independently of whether the variations arise from granular convection or velocity field oscillations. The extent to which line strength varies with luminosity (sensitivity) is observed to be significantly smaller than estimates based on models of the perturbed Harvard-Smithsonian Reference Atmosphere of Gingerich et al. (1970), and it is proposed that the structure of the solar granulation is a major factor determining local luminosity variations and line sensitivity.

Affiliated with

Also associated with

No associations

Rating

Effects of granular convection in the response of C I 5380 A to solar luminosity variations 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 Effects of granular convection in the response of C I 5380 A to solar luminosity variations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of granular convection in the response of C I 5380 A to solar luminosity variations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1358940