DETECTION OF DETACHED DUST ENVELOPES AROUND OXYGEN-RICH AGB STARS

Authors
HASHIMOTO O IZUMIURA H KESTER DJM BONTEKOE TR
Citation
O. Hashimoto et al., DETECTION OF DETACHED DUST ENVELOPES AROUND OXYGEN-RICH AGB STARS, Astrophysics and space science, 224(1-2), 1995, pp. 477-478
Citations number
4
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysics and space science → ACNP
ISSN journal
0004640X
Volume
224
Issue
1-2
Year of publication
1995
Pages
477 - 478
Database
ISI
SICI code
0004-640X(1995)224:1-2<477:DODDEA>2.0.ZU;2-A
Abstract
Extended emission components are clearly found in the IRAS scan data o f optically visible oxygen-rich AGE stars which show no 10 mu m silica te band feature in the IRAS LRS spectra but a strong infrared excess i n the IRAS photometric data. It is most likely that these stars really have their circumstellar dust envelopes, which are detached from the central stars, indicating a halting of mass loss for a significant per iod.