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BY-NC-ND 4.0 license Open Access Published by De Gruyter Open Access April 19, 2017

High Velocity Spectroscopic Binary Orbits from Photoelectric Radial Velocities: BD+20 5152, a Possible Triple System

  • J. Sperauskas , A. Bartkevičius , R. P. Boyle and V. Deveikis
From the journal Open Astronomy

Abstract

The spectroscopic orbit of a high proper motion star, BD+20 5152, is calculated from 34 CORAVEL-type radial velocity measurements. The star has a slightly eccentric orbit with a period of 5.70613 d, half-amplitude of 47.7 km/s and eccentricity of 0.049. The center-of-mass velocity of the system is -24.3 km/s. BD+20 5152 seems to be a triple system consisting of a G8 dwarf as a primary component and of two K6-M0 dwarfs as secondary and tertiary components. This model is based on the analysis of its UBVRI and JHK magnitudes. According to the SuperWASP photometry, spots on the surface of the primary are suspected. The excessive brightness in the Galex FUV and NUV magnitudes and a non-zero eccentricity suggest the age of this system to be less than 1 Gyr.

References

Abt H. A., Golson J. C. 1962, ApJ, 136, 36310.1086/147389Search in Google Scholar

Baranne A., Mayor M., Poncet J. L. 1979, Vistas in Astronomy, 23, 27910.1016/0083-6656(79)90016-3Search in Google Scholar

Bartkevičius A., Sperauskas J. 2005a, Baltic Astronomy, 14, 511Search in Google Scholar

Bartkevičius A., Sperauskas J. 2005b, Baltic Astronomy, 14, 527Search in Google Scholar

Bartkevičius A., Sperauskas J. 2006, Baltic Astronomy, 15, 539Search in Google Scholar

Bartkevičius A., Boyle R., Sperauskas J. 2008, Baltic Astronomy, 17, 103Search in Google Scholar

Bessell M. S. 1983, PASP, 95, 48010.1086/131196Search in Google Scholar

Bessell M. S., Brett J. M. 1988, PASP, 100, 113410.1086/132281Search in Google Scholar

Bond H.E. 1980, ApJS, 44, 51710.1086/190703Search in Google Scholar

Breger M., Stich J., Garrido R. et al. 1993, A&A, 271, 482Search in Google Scholar

Carpenter J. M. 2001, AJ, 121, 285110.1086/320383Search in Google Scholar

Cutri R. M., Skrutskie M. F., Van Dyk S. et al. 2003. The 2MASS All-Sky Catalog of Point Sources; CDS catalog No. II/246Search in Google Scholar

Flesch E., Hardcastle M. J. 2004. An All-Sky Optical Catalogue of Radio / X-ray Sources (QORG catalog), A&A, 427, 387; CDS catalog No. J/A+A/427/38710.1051/0004-6361:20041076Search in Google Scholar

Fouts G. 1987, PASP, 99, 98610.1086/132066Search in Google Scholar

Garcia B. 1989, Bull. Inform. CDS, No. 36, 2710.1108/eb020804Search in Google Scholar

Giclas H.L., Burnham Jr. R., Thomas N.G. 1971. Lowell Proper Motion Survey: 8991 Stars with m>8, μ>0.26′′ /year in the Northern Hemisphere, Lowell Observatory, Flagstaff; CDS catalog No. I/79Search in Google Scholar

Goldman I., Mazeh T. 1991, ApJ, 376, 26010.1086/170275Search in Google Scholar

Hall C. J., Lockwood G. W., Skiff B. A. 2007, AJ, 133, 86210.1086/510356Search in Google Scholar

Lajoie C.-P., Bergeron P. 2007, ApJ, 667, 112610.1086/520926Search in Google Scholar

Lee S.-G. 1984, AJ, 89, 70210.1086/113569Search in Google Scholar

Lenz P., Breger M. 2005, Comm. in Asteroseismology, No. 146, 5310.1553/cia146Search in Google Scholar

Luyten W. J. 1957. A catalogue of 9867 stars in the Southern Hemisphere with Proper Motions Exceeding 0.2′′annually, University of Minnesota, MinneapolisSearch in Google Scholar

Neckel Th., Chini R. 1980, A&AS, 39, 41110.1136/ard.39.4.411Search in Google Scholar

NED, 2008. The NASA/IPAC Extragalactic Database. Galactic Extinction Calculator; http://nedwww.ipac.caltech.edu/forms/calculator.htmlSearch in Google Scholar

Norton A. J., Wheatley P. J., West R. G. et al. 2007, A&A, 467, 785; CDS catalog No. J/A+A/467/785Search in Google Scholar

Norton A. J. 2009, private communicationSearch in Google Scholar

Pollacco D. L., Skillen I., Cameron A. C. et al. 2006, PASP, 118, 140710.1086/508556Search in Google Scholar

ROSAT. 2000, The Second ROSAT Source Catalog of Pointed Observations, ROSAT Consortium, ROSAT News No. 72; CDS catalog No. IX/30Search in Google Scholar

Rosselo G., Figueras F., Jordi C. et al. 1988, A&AS, 75, 21Search in Google Scholar

Sandage A., Kowal C. 1986, AJ, 91, 114010.1086/114091Search in Google Scholar

Schlegel D. J., Finkbeiner D. P., Davis M. 1998, ApJ, 500, 52510.1086/305772Search in Google Scholar

Smith G. H., Burstein D., Wu C.-C. 1991, AJ, 101, 65510.1086/115713Search in Google Scholar

Straižys V. 1992, Multicolor Stellar Photometry, Pachart Publ. House, Tucson, Arizona (available in pdf format at www.itpa.lt/MulticolorStellarPhotometry)Search in Google Scholar

Taylor B. J., Joner M. D., Johnson S. B. 1989, AJ, 97, 179810.1086/115120Search in Google Scholar

Tokovinin A., Thomas S., Sterzik M., Udry S. 2008, Multiple Stars Across the H-R Diagram, ESO Astrophysics Symposia, Springer-Verlag, 2008, p. 129Search in Google Scholar

Upgren A. R., Sperauskas J., Boyle R. P. 2002, Baltic Astronomy, 11, 91Search in Google Scholar

Valenti J. A., Fischer D. A. 2005, ApJS, 159, 14110.18356/dfd1309c-enSearch in Google Scholar

van Leeuwen F. 2007, Hipparcos, the New Reduction of the Raw Data, Springer10.1007/978-1-4020-6342-8Search in Google Scholar

Voges W., Aschenbach B., Boller Th. et al. 1999. The ROSAT All-Sky Survey Bright Source Catalogue, A&A, 349, 389; CDS catalog No. IX/10A/1rxsSearch in Google Scholar

Voges W., Aschenbach B., Boller Th. et al. 2000. ROSAT All-Sky Survey Faint source catalogue, IAUC 7432; CDS catalog No. IX/29/rass fsc Search in Google Scholar

Received: 2010-1-21
Published Online: 2017-4-19
Published in Print: 2010-12-1

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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