Photoelectric photometry of diffuse gaseous nebulae in the H-alpha line

Details Photoelectric photometry of diffuse gaseous nebulae in the H-alpha line Photoelectric photometry of diffuse gaseous nebulae in the H-alpha line

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26as...40...33v&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 40, Apr. 1980, p. 33-45. In French.

Astronomy and Astrophysics

Astrophysics

3

Astronomical Photometry, Electrophotometry, H Alpha Line, Hydrogen Clouds, Nebulae, Astronomical Maps, Astronomical Models, Brightness, Electron Density Profiles, Integral Equations

Scientific paper

Results are given of the H-alpha photometry of diffuse gaseous nebulae observed with a nebula photometer attached to the 60-cm reflector of the Pic du Midi Observatory. Isophote maps are given for the following objects: the Orion nebula, the Rosette nebula, IC 410, IC 434 and NGC 2024, and M 8 (NGC 6523); several scans are presented for NGC 6514, NGC 7000, and Barnard's Loop. In cases where the spherical model approximation may be performed, the variation of electron density with radius was determined; for the Rosette nebula a steeper decrease toward the center than previously established was found.

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