Photometric Studies of delta Scuti Stars. II. V1162 Orionis

Details Photometric Studies of delta Scuti Stars. II. V1162 Orionis Photometric Studies of delta Scuti Stars. II. V1162 Orionis

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pasp..110..689h&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 110, Issue 748, pp. 689-698.

Astronomy and Astrophysics

Astronomy

20

Scientific paper

New photometric (uvbybeta) observations of V1162 Orionis are reported. We derive a reddening value of E(b-y)=0.021 mag and a metallicity of [Fe/H] = +0.1. Intrinsic (b-y) and c_1 values indicate a mean effective temperature, =7540 K, and a mean surface gravity, =3.96. Theoretical evolutionary tracks, along with pulsation models, indicate the mass of V1162 Ori is 1.8 M_solar and the age is 0.60 Gyr. New V magnitude CCD observations are also reported. A time of maximum light analysis shows that V1162 Ori has experienced a period break. In addition, the amplitude has dropped from DeltaV=0.2 before the period break to DeltaV=0.1 after the break.

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