A photometric investigation of RV Tauri and yellow semiregular variables

Details A photometric investigation of RV Tauri and yellow semiregular variables A photometric investigation of RV Tauri and yellow semiregular variables

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apjs...41...97d&link_type=abstract

Astrophysical Journal Supplement Series, vol. 41, Sept. 1979, p. 97-117.

Astronomy and Astrophysics

Astrophysics

69

Cepheid Variables, Electrophotometry, Semiregular Variable Stars, Stellar Spectrophotometry, Abundance, Color-Color Diagram, Cyanides, Gravity Waves, Interstellar Extinction, Metallic Stars, Stellar Atmospheres, Stellar Gravitation, Stellar Luminosity, Stellar Mass, Stellar Temperature, Ubv Spectra

Scientific paper

Results are presented for DDO and UBV photoelectric photometry of 52 RV Tau and semiregular variables and candidates. CN abundances, effective temperatures, surface gravities, absolute visual magnitudes, and mass estimates are derived in the framework of the spectroscopic groupings proposed by Preston et al. (1963). The photometry suggests a further division of Preston's group A, and a possible physical connection is indicated between this group and the semiregular variables. The spectroscopic groups are shown to be well separated in the DDO color-color diagrams when mean colors are used for individual stars. An upper limit of about 3 solar masses is determined for stars in each group. A correlation between derived iron abundances and published IR excesses obtained from flux measurements at 3.6 and 11.3 microns is found which supports the contention that dust production in circumstellar shells increases with increasing metallicity.

Affiliated with

Also associated with

No associations

Rating

A photometric investigation of RV Tauri and yellow semiregular variables does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A photometric investigation of RV Tauri and yellow semiregular variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A photometric investigation of RV Tauri and yellow semiregular variables will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1817919