SIMBAD references

2002ApJ...572..288E - Astrophys. J., 572, 288-299 (2002/June-2)

An infrared ring nebula around MSX5C G358.5391+00.1305: the true nature of suspected planetary nebula Wray 17-96 determined via direct imaging and spectroscopy.

EGAN M.P., CLARK J.S., MIZUNO D.R., CAREY S.J., STEELE I.A. and PRICE S.D.

Abstract (from CDS):

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 1.8x106 L. We suggest that the nebula consists of multiple shells and that an evolution from oxygen-rich to carbon-rich chemistry may be indicated.

Abstract Copyright:

Journal keyword(s): Infrared: Stars - ISM: Planetary Nebulae: Individual: Alphanumeric: Wray 17-96 - Stars: Evolution - Stars: Variables: Other

CDS comments: p. 291 : Wray 751 = Wray 15-751, PKS 1729-37 not identified, 3.5 cm point source = EQ J1741-3006

Simbad objects: 17

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2019.10.23-08:08:17

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