Luminosity Variations in Post-AGB Stars

Details Luminosity Variations in Post-AGB Stars Luminosity Variations in Post-AGB Stars

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jsara...2...10m&link_type=abstract

Journal of the Southeastern Association for Research in Astronomy, vol. 2, p. 10-13

Astronomy and Astrophysics

Astronomy

Stars: Agb And Post-Agb, Stars: Variables: General, Methods: Observational, Techniques: Photometric

Scientific paper

We have measured the variations in luminosity of several knownPost-AGB stars (as well as several candidates) relative to nearbynon-variable stars. The typical behavior of these variations isdescribed and an attempt is made to discern their periodicity, if anysuch periodicity exists. Luminosity variations were found to beon the order of a few hundredths to a few tenths of a magnitude for thestars that were surveyed, with occasional fluctuations of up to amagnitude. The variations tended to be color-independent, andoccured on timescales ranging nearly continuously from a few days tomore than a year. No clear periodic behavior was found in any star inour sample.

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