Physical Processes in Gaseous Nebulae. XIV.
Abstract
Total intensities of emission lines in the spectra of a number of typical planetaries have been deter- mined from spectrograms made with the quartz slitless spectrograph attached to the Crossley reflector of the Lick Observatory. The plates have been measured with the microdensitometer of the Harvard Observatory. Intensities of all the strong lines between A 5007 and X 3133 are tabulated. Intensities of lines in the visual region of NGC 7027, 7662, and 7009 have also been measured
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1941
- DOI:
- 10.1086/144260
- Bibcode:
- 1941ApJ....93..236A