Detection of Detached Dust Envelopes around Oxygen-Rich AGB Stars

Details Detection of Detached Dust Envelopes around Oxygen-Rich AGB Stars Detection of Detached Dust Envelopes around Oxygen-Rich AGB Stars

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..477h&link_type=abstract

Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 477-478

Astronomy and Astrophysics

Astrophysics

3

Circumstellar Dust, Stars : Agb, Mass Loss, Stars: Individual : R Hya

Scientific paper

Extended emission components are clearly found in the IRAS scan data of optically visible oxygen-rich AGB stars which show no 10µm silicate band feature in the IRAS LRS spectra but a strong infrared excess in 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 period.

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