Near infrared spectra of RV Tauri stars

Details Near infrared spectra of RV Tauri stars Near infrared spectra of RV Tauri stars

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...88..255m&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 88, no. 2, May 1991, p. 255-263.

Astronomy and Astrophysics

Astrophysics

11

Infrared Spectra, Near Infrared Radiation, Stellar Luminosity, Supergiant Stars, Variable Stars, F Stars, G Stars, Light Curve, Stellar Spectra, Taurus Constellation

Scientific paper

Medium resolution spectrograms of the near infrared spectral region in a sample of RV Tauri stars with spectral types F and early G have been compared with those of a sample of population I objects. It is shown that the equivalent widths of Ca II infrared triplet and Paschen lines allow to separate RV Tauri stars from population I supergiants. Moreover, the possibility of using the O I triplet at 7774 A as a tool for testing the period-luminosity relation for RV Tauri stars is discussed.

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