Planetary nebula candidates in a southern region of M 33*
Instituto de Astrofísica de Canarias, c/Vía Lactea s/n, 38205 La Laguna, Spain e-mail: email@example.com
2 Departamento de Astrofísica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez, s/n, 38071 La Laguna, Spain
Corresponding author: L. J. Corral, firstname.lastname@example.org
Accepted: 11 July 2001
In a search for emission line objects made in a southern region of M 33 using narrow band filters centered on [O III], Hα and adjacent continua, we detect some known and new objects that can be classified as planetary nebulae candidates (PNc). This search, the deepest one made up to now in M 33, has allowed us to detect 48 PNc, from which 14 have a ratio of [O III]-to-Hα fluxes greater than 1. We compare our findings with a previous search and present the list and finding charts of these interesting objects.
Key words: planetary nebulae: general / galaxies: individual: M 33
© ESO, 2001