A photometric and spectrographic study of YZ Bootis

Details A photometric and spectrographic study of YZ Bootis A photometric and spectrographic study of YZ Bootis

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pasp...95..433j&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 95, July 1983, p. 433-439.

Astronomy and Astrophysics

Astronomy

14

Cepheid Variables, Dwarf Stars, Radial Velocity, Stellar Spectrophotometry, Ubv Spectra, Abundance, Astronomical Catalogs, Interstellar Extinction, Stellar Magnitude, Stellar Temperature

Scientific paper

Photometric observations of YZ Boo in the uvby beta system obtained in summer, 1982, with the two-channel sky-compensating photometer on the 61-cm reflecting telescope at West Mountain Observatory are reported. The period is calculated from both the present and published light maxima as 0.104091593 days. The phase variation of the different photometric parameters is given in tables and graphs. A reddening value E(b-y) = 0.018 m is found, and further parameters are estimated, using the model atmospheric grid of Breger (1977) in some cases: T(eff) = 7590 K, log g = 3.95, Fe/H = -0.025, M(bol) = 1.7, mean radial velocity = -20 km/sec, and total velocity range = 35 km/sec. An attempted Wesselink radius calculation was unsuccessful. YZ Boo is classified as a normal dwarf cepheid of Population I.

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