dc.contributor.author |
Ramanathan, A. S |
|
dc.date.accessioned |
2010-03-18T16:34:08Z |
|
dc.date.available |
2010-03-18T16:34:08Z |
|
dc.date.issued |
1954-01 |
|
dc.identifier.citation |
Annales d'Astrophysique, Vol. 17, pp. 18 - 34 |
en |
dc.identifier.issn |
0365-0499 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/5077 |
|
dc.description |
Open Access |
en |
dc.description.abstract |
Limb darkening observations made under excellent observing conditions are given for twenty-two wavelengths in the continuous spectrum of the sun in the region λ 3600-λ 6800; these observations were made at a time when the disc was completely free from spots and also other forms of solar activity were at a minimum. It is verified that for the visible region between λ 4000 and λ 6000 the variation of continuous absorption coefficient with wavelength agrees with the theoretical values given by CHANDRASEKHAR and BREEN for the H-ion. However beyond 6000 Å divergence between theory and observation begins to appear, Variation of optical depth with temperature for λ 5000 is deduced from observations. |
en |
dc.language.iso |
en |
en |
dc.publisher |
C.N.R.S |
en |
dc.relation.uri |
http://adsabs.harvard.edu/abs/1954AnAp...17...18R |
en |
dc.rights |
© C.N.R.S |
en |
dc.subject |
Solar Spectrum |
en |
dc.subject |
Visible Rouge |
en |
dc.subject |
Limb Darkening Observations |
en |
dc.subject |
Spectrum |
en |
dc.subject |
Solar Activity |
en |
dc.title |
Study of the continuous solar spectrum in the visible range |
en |
dc.type |
Article |
en |