A multiwavelength study of the Stingray Nebula; properties of the nebula, central star, and dust. Issue 7 (July 2016)

• Record Type: Journal Article
• Authors: Otsuka, Masaaki; Parthasarathy, Mudumba; Tajitsu, Akito; Hubrig, Swetlana
• Is Part Of: Journal of physics. Volume 728:Issue 7(2016)
• Publication Date: 2016-07
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/728/7/072011
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We performed a detail chemical abundance analysis and photo-ionization modeling of the Stingray Nebula (Hen3-1357, Parthasarathy et al. 1993[1]) to more characterize this PN. We calculated nine elemental abundances using collisionally excited lines (CELs) and recombination lines (RLs). The RL C/O ratio indicates that this PN is O-rich, which is supported by the detection of the broad amorphous silicate features at 9 and 18 μ m By photo-ionization modeling, we investigated properties of the central star and derived the gas and dust masses. The nebular elemental abundances, the core-mass of the central star, and the gas mass are in agreement with the AGB model for the initially 1.5 M ⊙ stars with the Z = 0.008.