RZ Scuti: New five-color observations, solutions, and photometric and spectroscopic rotations

Details RZ Scuti: New five-color observations, solutions, and photometric and spectroscopic rotations RZ Scuti: New five-color observations, solutions, and photometric and spectroscopic rotations

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....108..262o&link_type=abstract

The Astronomical Journal, vol. 108, no. 1, p. 262-267

Astronomy and Astrophysics

Astronomy

8

Stellar Luminosity, Stellar Oscillations, Stellar Rotation, Stellar Spectra, Stellar Spectrophotometry, Ultraviolet Spectra, Light Curve, Spectral Energy Distribution, Stellar Magnitude

Scientific paper

We describe photometric solutions using new intermediate-band Iybvu observations of RZ Scuti. Our solution gives a reliable value of the rotation parameter F1 (phot) = 5.0, and verifies the conclusion of Wilson et al. that this binary is at or near the double-contact configuration. We comment briefly on differences between our solution and those of previous investigators. We obtain additional spectra in an attempt to refine the rotational velocity of the hot primary star, and use K1 and our photometric mass ratio to estimate F1 (spec). For this direct impactor, we estimate that F1 (phot) approximately equals F1 (spec).

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