LSIV -12 deg 111 - A candidate halo proto-planetary nebula

Details LSIV -12 deg 111 - A candidate halo proto-planetary nebula LSIV -12 deg 111 - A candidate halo proto-planetary nebula

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...408..593c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 408, no. 2, p. 593-599.

Astronomy and Astrophysics

Astronomy

40

Asymptotic Giant Branch Stars, Emission Spectra, Planetary Nebulae, Stellar Envelopes, Stellar Evolution, B Stars, Cosmic Dust, Infrared Astronomy Satellite

Scientific paper

We report on multiwavelength observations of LSIV -12 deg 111, which may be an emerging halo planetary nebula. This object was previously classified as a young emission-line B-type star, but a model atmosphere abundance analysis of high-resolution optical spectra has revealed it to be an evolved object, probably in the postasymptotic giant branch (AGB) evolutionary phase. The presence of an infrared excess and low-excitation nebular emission lines implies that the central star may just have started to photoionize the circumstellar material ejected during the AGB phase. In this paper we discuss the nebular and dust properties of LSIV -12 deg 111 and redetermine some metal abundances for the central star. These are used to constrain the evolutionary status of this unusual object.

Affiliated with

Also associated with

No associations

Rating

LSIV -12 deg 111 - A candidate halo proto-planetary nebula does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with LSIV -12 deg 111 - A candidate halo proto-planetary nebula, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LSIV -12 deg 111 - A candidate halo proto-planetary nebula will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1852429