1998/09/24 by M. G. Richer, Michael G. Richer, G. Stasińska +3 · 2 citations
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Astrophysics and Star Formation Studies #Bulge #Doubly ionized oxygen #Emission spectrum #Forbidden mechanism #Galaxy #Line (geometry) #Physics #Planetary nebula #Spectral line #Spectrograph #Spectroscopy #Stars #Stellar, planetary, and galactic studies #Telescope #astro-ph
paper · pdf · doi:10.1051/aas:1999172
17 pages, 12 figures, accepted by Astronomy & Astrophysics Supplement Series
arxiv created 1998/09/24 · openalex publication_date 1999/03/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present spectroscopy of planetary nebulae in M 32 and in the bulge of M 31 that we obtained with the MOS spectrograph at the Canada-France-Hawaii Telescope. Our sample includes 30 planetary nebulae in M 31 and 9 planetary nebulae in M 32. We also observed one HII region in the disk of M 31. We detected [OIII]λ4363 in 18 of the planetary nebulae, 4 in M 32 and 14 in the bulge of M 31. We use our line intensities to derive electron temperatures and oxygen abundances for the planetary nebulae.