An objective-prism survey of emission-line objects in M 33and IC 1613.
Abstract
A catalog of 226 small-diameter objects with strong emission lines in M33, and 19 in a 55 x 55 arcmin field centered on IC 1613, is presented based on GRENS plates obtained with the 3.6-m Canada-France-Hawaii telescope in Hawaii. Among the objects found are small H II regions, compact parts of H II regions, and Wolf-Rayet stars. Several new planetary nebula candidates in M33, and the first discovery of a planetary nebula in IC 1613, are reported. The present survey could verify as actual planetary nebulae only 70 percent of those suggested by Ford (1983).
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- January 1987
- Bibcode:
- 1987A&AS...67..169L
- Keywords:
-
- Astronomical Catalogs;
- Emission Spectra;
- Line Spectra;
- Local Group (Astronomy);
- Wolf-Rayet Stars;
- H Ii Regions;
- Photographic Plates;
- Planetary Nebulae;
- Prisms;
- Astrophysics