JHKLM photometry of 3 RV Tau supergiants (Taranova+, 2010)

Details JHKLM photometry of 3 RV Tau supergiants (Taranova+, 2010) JHKLM photometry of 3 RV Tau supergiants (Taranova+, 2010)

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ycat..90360144t&link_type=abstract

VizieR On-line Data Catalog: J/PAZh/36/144. Originally published in: 2010PAZh...36..144T; 2010AstL...36..134T

Physics

Stars: Variable, Stars: Supergiant, Photometry: Infrared

Scientific paper

We have analyzed our long-term (1995-2008) JHKLM photometry for three variable RV Tau supergiants. It follows from this analysis that: the amplitude of the JHK brightness variations is approximately the same, 0.9-1mag, for the three stars; a negative linear trend is noticeable in the variations of the mean J brightness for AC Her; and the mean J brightness of R Sct and V Vul remained constant. The observed J brightness fluctuations in the supergiants are shown to be consistent either only with the temperature pulsations (AC Her and V Vul) or with the temperature and radial pulsations (R Sct).
(1 data file).

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