Chemical Abundances of Planetary Nebulae in the Substructures of M31. II. The Extended Sample and a Comparison Study with the Outer-disk Group

Abstract We report deep spectroscopy of 10 planetary nebulae (PNe) in the Andromeda Galaxy (M31) using the 10.4 m Gran Telescopio Canarias (GTC). Our targets reside in different regions of M31, including halo streams and the dwarf satellite M32, and kinematically deviate from the extended disk. The...

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Bibliographic Details
Published in:The Astrophysical journal 2018-01, Vol.853 (1), p.50
Main Authors: Fang, Xuan, García-Benito, Rubén, Guerrero, Martín A., Zhang, Yong, Liu, Xiaowei, Morisset, Christophe, Karakas, Amanda I., Miller Bertolami, Marcelo M., Yuan, Haibo, Cabrera-Lavers, Antonio
Format: Article
Language:English
Subjects:
Abundance
Andromeda Galaxy
Astrophysics
Dwarf galaxies
Galaxies
Nebulae
Organic chemistry
Planetary nebulae
Planets
Spectroscopy
Spectrum analysis
Star & galaxy formation
Star formation
Stellar evolution
Substructures
Temperature
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Summary:Abstract We report deep spectroscopy of 10 planetary nebulae (PNe) in the Andromeda Galaxy (M31) using the 10.4 m Gran Telescopio Canarias (GTC). Our targets reside in different regions of M31, including halo streams and the dwarf satellite M32, and kinematically deviate from the extended disk. The temperature-sensitive [O iii ] λ 4363 line is observed in all PNe. For four PNe, the GTC spectra extend beyond 1 μ m, enabling the explicit detection of the [S iii ] λ 6312 and λλ 9069, 9531 lines and thus determination of the [S iii ] temperature. Abundance ratios are derived and generally consistent with AGB model predictions. Our PNe probably all evolved from low-mass (
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/aaa1e5