2000A&AS..141..149G


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.14CEST01:55:45

2000A&AS..141..149G - Astron. Astrophys., Suppl. Ser., 141, 149-156 (2000/January-1)

Infrared spectral sequence of quenched carbonaceous composite subjected to thermal annealing.

GOTO M., MAIHARA T., TERADA H., KAITO C., KIMURA S. and WADA S.

Abstract (from CDS):

We investigate the spectroscopic alteration through thermal annealing on the quenched carbonaceous composite (QCC) produced from hydrocarbon plasma. The emission and absorption spectra of QCC samples annealed at various temperatures indicate that the proportion of aliphatic C-H bonds in QCC decreases relative to aromatic C-H bonds with increase of annealing temperature. By comparing the spectra of annealed QCC with observed emission spectra of proto-planetary nebulae, similarity between the spectral sequence obtained in the laboratory and that in the observational data is clearly noticed. On this basis, we discuss a simple evolutional scenario of carbon dust in circumstellar environment around cool evolved stars.

Abstract Copyright:

Journal keyword(s): (stars:) circumstellar matter - stars: individual (IRAS 05341+0852) - stars: AGB and post-AGB - (ISM:) dust, extinction - infrared: ISM: lines and bands - methods: laboratory

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 IRAS 05341+0852 pA* 05 36 55.0500719686 +08 54 08.646055747   15.36 13.55 12.46 11.43 F6I 104 0
2 HD 44179 pA* 06 19 58.2185496 -10 38 14.706068 9.51 9.33 9.02     B9Ib/II 702 0

    Equat.    Gal    SGal    Ecl

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2019.10.14-01:55:45

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