Spectrophotometric Studies of Gaseous Nebulae. XII. The Symmetrical Planetary IC 3568
Abstract
A photoelectric spectrum scanner and conventional technique of photographic spectrophotometry have been used to derive the relative intensities of spectrum lines for the bright, compact, symmetrical, medium-excitation planetary nebula IC 3568. The nebula appears to be unaffected by space absorption. The agreement between the observed and theoretical Balmer decrement seems to be excellent
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1969
- DOI:
- 10.1086/149915
- Bibcode:
- 1969ApJ...155..853L