Near-infrared monitoring to study the transition from AGB to post-AGB stars

Details Near-infrared monitoring to study the transition from AGB to post-AGB stars Near-infrared monitoring to study the transition from AGB to post-AGB stars

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283..221f&link_type=abstract

In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M

Astronomy and Astrophysics

Astrophysics

1

Stars: Agb And Post-Agb, Infrared Surveys

Scientific paper

We investigated light variability of late-AGB and post-AGB candidates in near-infrared H-band. A total of 113 objects were selected from IRAS PSC using their far-infrared colors. After four years monitoring observations, light variability was detected in 60 stars. These variables are classified into AGB or post-AGB stars according to their SED. We also carried out near-infrared spectroscopy to determine stellar temperature. We found the post-AGB variables in this study were classified into two group; one group contains F-G type post-AGB variables and the other group contains very cool (M-type) post-AGB variables.

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