Dust around AFGL 2688, molecular shielding, and the production of carbon chain molecules
Journal Article
·
· Astrophysical Journal; (USA)
- California Univ., Los Angeles (USA)
The molecular, IR, and optical maps of the evolved carbon star AFGL 2688 (the Egg Nebula) are all consistent with a model of a bipolar outflow of approximately 0.0001 solar masses/yr that stopped as this object evolved beyond the asymptotic giant branch about 200 years ago. In order to explain the extended HC7N emission around this star, it is proposed that carbon grains are collisionally fragmented as they supersonically steam through the circumstellar envelope. 60 refs.
- OSTI ID:
- 6851834
- Journal Information:
- Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 351; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Neutral carbon in the EGG nebula (AFGL 2688)
A MOLECULAR LINE SURVEY OF THE CARBON-RICH PROTOPLANETARY NEBULA AFGL 2688 IN THE 3 mm AND 1.3 mm WINDOWS
CRL 2688 and CRL 618: Proto--planetary nebulae
Journal Article
·
Sat Oct 15 00:00:00 EDT 1983
· Astrophys. J.; (United States)
·
OSTI ID:6741975
A MOLECULAR LINE SURVEY OF THE CARBON-RICH PROTOPLANETARY NEBULA AFGL 2688 IN THE 3 mm AND 1.3 mm WINDOWS
Journal Article
·
Sat Aug 10 00:00:00 EDT 2013
· Astrophysical Journal
·
OSTI ID:22131046
CRL 2688 and CRL 618: Proto--planetary nebulae
Journal Article
·
Wed Mar 31 23:00:00 EST 1976
· Astrophys. J., Lett.; (United States)
·
OSTI ID:7346158
Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON STARS
CHEMISTRY
COSMIC DUST
COSMOCHEMISTRY
CYANIDES
DISSOCIATION
DUSTS
HYDROGEN COMPOUNDS
MAIN SEQUENCE STARS
MAPS
MASS
MASS TRANSFER
MATHEMATICAL MODELS
NEBULAE
PLANETARY NEBULAE
STAR EVOLUTION
STAR MODELS
STARS
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON STARS
CHEMISTRY
COSMIC DUST
COSMOCHEMISTRY
CYANIDES
DISSOCIATION
DUSTS
HYDROGEN COMPOUNDS
MAIN SEQUENCE STARS
MAPS
MASS
MASS TRANSFER
MATHEMATICAL MODELS
NEBULAE
PLANETARY NEBULAE
STAR EVOLUTION
STAR MODELS
STARS