Evening and morning twilight airglow emissions of 5577 A and 5893 A lines at Calcutta and Allahabad and their correlation with flare index

Details Evening and morning twilight airglow emissions of 5577 A and 5893 A lines at Calcutta and Allahabad and their correlation with flare index Evening and morning twilight airglow emissions of 5577 A and 5893 A lines at Calcutta and Allahabad and their correlation with flare index

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993em%26p...63..199m&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 63, no. 3, p. 199-207

Astronomy and Astrophysics

Astronomy

8

Emission Spectra, Line Spectra, Night Sky, Solar Cycles, Solar Flares, Solar Flux, Sunspots, Twilight Glow, Visible Spectrum, Astronomical Photometry, Flux Density, Oxygen Spectra, Photometers, Photomultiplier Tubes, Sunrise, Sunset, Telescopes

Scientific paper

Evening and morning twilight enhancements of 5577 A and 5893 A lines were observed by Dunn-Manring type photometer at Calcutta during the period 1983-1985 and that of 5577 A have been collected from Allahabad observatory. The following paper presents the correlation between the enhanced intensity of airglow lines (AG) and solar flare index (If) which is calculated considering all the flares which occurred 24 hr before the times of occurrence of enhancements. It is observed that the intensity of airglow lines varies with the flare index in an oscillatory manner upto a certain limiting value of If. Afterwards intensity of both lines increases with the increase of If. The nature of variation is the same for both sunspot maximum and minimum periods. A possible explanation of such type of variation has also been invoked.

Affiliated with

Also associated with

No associations

Rating

Evening and morning twilight airglow emissions of 5577 A and 5893 A lines at Calcutta and Allahabad and their correlation with flare index 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 Evening and morning twilight airglow emissions of 5577 A and 5893 A lines at Calcutta and Allahabad and their correlation with flare index, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evening and morning twilight airglow emissions of 5577 A and 5893 A lines at Calcutta and Allahabad and their correlation with flare index will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-786177