SIMBAD references

2008AJ....136..586R - Astron. J., 136, 586-593 (2008/August-0)

Radial velocity studies of close binary stars. XIII.

RUCINSKI S.M., PRIBULLA T., MOCHNACKI S.W., LIOKUMOVICH E., LU W., DEBOND H., DE RIDDER A., KARMO T., ROCK M., THOMSON J.R., OGLOZA W., KAMINSKI K. and LIGEZA P.

Abstract (from CDS):

Radial velocity (RV) measurements and sine-curve fits to the orbital RV variations are presented for ten close binary systems: EG Cep, V1191 Cyg, V1003 Her, BD+7°3142, V357 Peg, V407 Peg, V1123 Tau, V1128 Tau, HH UMa, and PY Vir. While most of the studied eclipsing systems are contact binaries, EG Cep is a detached or a semidetached double-lined binary and V1003 Her is a close binary of an uncertain type seen at a very low inclination angle. We discovered two previously unknown triple systems, BD+7°3142 and PY Vir, both with late spectral-type (K2V) binaries. Of interest is the low mass-ratio (q = 0.106) close binary V1191 Cyg showing an extremely fast period increase; the system has a very short period for its spectral type and shows a W-type light curve, a feature rather unexpected for such a low mass-ratio system.

Abstract Copyright:

Journal keyword(s): binaries: close - binaries: eclipsing - binaries: spectroscopic

CDS comments: NSVS 11074663 not identified.

Simbad objects: 15

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