Egan, M. P.; Clark, J. S.; Mizuno, D. R.; Carey, S. J.; Steele, I. A. and Price, S. D.
(2002).
| DOI (Digital Object Identifier) Link: | http://doi.org/10.1086/340222 |
|---|---|
| Google Scholar: | Look up in Google Scholar |
Abstract
The Midcourse Space Experiment (MSX) Galactic plane survey discovered a nearly perfectly circular ring nebula around the suspected planetary nebula Wray 17-96. Using near-IR spectral typing and modeling of the mid-IR nebula, we find that Wray 17-96 is more likely a candidate to be a luminous blue variable (LBV) surrounded by a large spherical ejecta shell. It is very similar to the G79.29+0.46 LBV candidate in Cygnus and the Pistol Star. The K-band spectrum and the mid-IR data indicate a stellar temperature of 13,000 K. The most likely distance to the source is 4.5 kpc, leading to a luminosity of 1.8 × 106 L. We suggest that the nebula consists of multiple shells and that an evolution from oxygen-rich to carbon-rich chemistry may be indicated.
| Item Type: | Journal Article |
|---|---|
| ISSN: | 1538-4357 |
| Keywords: | infrared: stars; planetary nebulae: individual (Wray 17-96); stars: evolution; stars: variables: other |
| Academic Unit/Department: | Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences Faculty of Science, Technology, Engineering and Mathematics (STEM) |
| Interdisciplinary Research Centre: | Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
| Item ID: | 13314 |
| Depositing User: | Astrid Peterkin |
| Date Deposited: | 17 Feb 2009 09:55 |
| Last Modified: | 02 Aug 2016 13:22 |
| URI: | http://oro.open.ac.uk/id/eprint/13314 |
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