Reference : The spectra of the comets
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/72520
The spectra of the comets
English
Swings, Polydore [Université de Liège - ULg > Institut d'Astrophysique > > > >]
1956
Vistas in Astronomy
Pergamon Press
2
958-981
Yes (verified by ORBi)
International
0083-6656
London
United Kingdom
[en] The Introduction deals with the essential information on the nucleus, the coma, and the tail of comets, which may be obtained by direct photography, photometry, and polarization techniques; the need for "monochromatic" observations is emphasized. It is followed by a description of the emission spectrum of the coma (from the OH emission near 3100 to the red CN band near 8100) and by that of the spectrum of the tail in the ultraviolet and photographic regions, with emphasis on the recently discovered bands. The complex profile of the emission bands is shown to be due to a resonance fluorescence excitation, account being taken of the absorption lines of the exciting solar radiation; other possible excitation mechanisms are briefly mentioned. The probable assignment of the 4050 group to the tricarbon molecule and its consequences are discussed. The paper ends with physical considerations on the still unidentified emissions, on desirable physical investigations, on the parent molecules, and the production and evolution of cometary atmospheres, and on the densities and the extent of molecules in the cometary head.
Researchers ; Professionals
http://hdl.handle.net/2268/72520
10.1016/0083-6656(56)90020-4
http://adsabs.harvard.edu/abs/1956VA......2..958S

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
Swings_1956_Vistas.pdfPublisher postprint2.48 MBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.