CCD Photometry, Roche Modeling and Evolutionary History of the W UMa-type Eclipsing Binary TYC 01664-0110-1

• Autorzy: Alton K. B. , Stępień K.
• Języki publikacji: EN

Abstrakty

EN

TYC 01664-0110-1 (ASAS J212915+1604.9), a W UMa-type variable system (P=0.282962 d), was first detected over 17 years ago by the ROTSE-I telescope. Photometric data (B, V and Ic) collected at UnderOak Observatory (UO) resulted in five new times-of-minima for this variable star which were used to establish a revised linear ephemeris. No published radial velocity (RV) data are available for this system. However, since this W UMa binary undergoes a total eclipse, Roche modeling based on the Wilson-Devinney (W-D) code yielded a well-constrained photometric value for M₂/M₁ (q=0.356±0.001). There is a suggestion from ROTSE-I (1999) and ASAS survey data (2003, 2005, and 2008) that the secondary maximum is more variable than the primary one probably due to the so-called O'Connell effect. However, peak asymmetry in light curves (LC) from 2015 was barely evident during quadrature. Therefore, W-D model fits of these most recent data did not yield any substantive improvement with the addition of spot(s). Using the evolutionary model of cool close binaries we searched for a possible progenitor of TYC 01664-0110-1. The best fit is obtained if the initial binary has an orbital period between 3.3-3.8 d and component masses between 1.0-1.1 M⊙ and 0.30-0.35 M⊙. The model progenitor needs about 10 Gyr to attain the presently observed parameters of the variable. Its period slowly increases and the mass ratio decreases. According to the model predictions TYC 01664-0110-1 will go through the common envelope (CE) phase in the future, followed by merging of both components or formation of a double degenerate. Due to its apparent brightness (mV,_max≈10.9 mag) and unique properties, the star is an excellent target for spectroscopic investigation of any possible deviations from a simple static model of a contact binary.

Słowa kluczowe

EN

binaries: eclipsing; starspots; stars: evolution

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2016
• Tom: Vol. 66, No. 3
• Strony: 357--379
• Opis fizyczny: Bibliogr. 56 poz., tab., wykr.

Twórcy

autor

Alton K. B.

• UnderOak Observatory, Cedar Knolls, NJ 07927, USA

autor

Stępień K.

• Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

Bibliografia

• Alton, K.B. 2016, JAAVSO, in press. Amores, E.B., and Lépine, J.R.D. 2005, AJ, 130, 659.
• Bilir, S., Karatas¸, Y., Demircan, and O., and Eker, Z. 2005, MNRAS, 357, 497.
• Binnendijk, L. 1970, Vistas in Astronomy, 12, 217.
• Bressan, A., Marigio, P., Girardi, L., Salasnich, B., Dal Cero, C., Rubele, S., and Nanni, A. 2012, MNRAS, 427, 127.
• Bradstreet, D.H. 2005, The Society for Astronomical Sciences 24th Annual Symposium on Telescope Science, 23.
• Bradstreet, D.H., and Steelman, D.P. 2002, BAAS, 34, 1224.
• Brown, W.R., Kilic, M., Prieto, C.A., Gianninas, A., and Kenyon, S.J. 2013, ApJ, 769, 66.
• Deb, S., Singh, H.P., Seshadri, T.R., and Gupta, R. 2010, New Astronomy, 15, 662.
• Demircan, Y., et al. 2011, IBVS, 5965.
• Diethelm, R. 2013, IBVS, 6042.
• Eggleton, P.P. 1983, ApJ, 268, 368.
• Fabrycky, D., and Tremaine, S. 2007, ApJ, 669, 1298.
• Gazeas, K.D., Niarchos, P.G., and Zola, S. 2007, ASP Conference Series, 370, 279.
• Gazeas, K., and Stępień, K. 2008, MNRAS, 390, 1577.
• Gettel, S.J., Geske, M.T., and McKay, T.A. 2006, AJ, 131, 621.
• Harmanec, P. 1988, Astronomical Institutes of Czechoslovakia, Bulletin, 39, 329.
• Harris, A.W., et al. 1989, Icarus, 77, 171.
• Hilditch, R.W., Collier Cameron, A., Hill, G., Bell, A.A., and Harries, T.J. 1997, MNRAS, 291, 749.
• Hoffman, D.J., Harrison, T.E., and McNamara, B.J. 2009, AJ, 138, 466.
• Kwee, K.K., and Woerden, H. van 1956, Bulletin of the Astronomical Institutes of the Netherlands, 12, 327.
• Lohr, M.E., et al. 2014, A&A, 566, A128.
• Lohr, M.E., Norton, A.J., Payne, S.G., West, R.G., and Wheatley, P.J. 2015, A&A, 578, A136.
• Lucy, L.B. 1967, Zeitschrift für Astrophysik, 65, 89.
• Mochnacki, S. 1981, ApJ, 245, 650.
• Naoz, S., and Fabrycky, D.C. 2014, ApJ, 793, 137.
• Pecaut, M.J., and Mamajek, E.E. 2013, ApJS, 208, 9.
• Pilecki, B. 2010, PhD Thesis, Warsaw University. Pilecki, B., and Stępień, K. 2012, IBVS, 6012.
• Pojmański, G., Pilecki, B., and Szczygieł, D. 2005, Acta Astron., 55, 275.
• Prša, A., and Zwitter, T. 2005, ApJ, 628, 426.
• Qian, S. 2003, MNRAS, 342, 1260.
• Ruciński, S. M. 1969, Acta Astron., 19, 245.
• Rucinski, S. M. 1993, in: “The Realm of Interacting Binary Stars”, Eds. J. Sahade, et al. Kluwer, Dordrecht, p. 111.
• Rucinski, S.M. 2015, AJ, 149, 49.
• Rucinski, S.M., and Duerbeck, H. 1997, PASP, 109, 1340.
• Schwarzenberg-Czerny, A. 1996, ApJ, 460, L107.
• Siwak, M., Zola, S., and Koziel-Wierzbowska, D. 2010, Acta Astron., 60, 305.
• Stępień, K. 2006, Acta Astron., 56, 199.
• Stępień, K. 2009, MNRAS, 397, 857.
• Stępień, K. 2011a, Acta Astron., 61, 139.
• Stępień, K. 2011b, A&A, 531, A18.
• Stępień, K., and Gazeas, K. 2012, Acta Astron., 62, 153.
• Stępień, K., and Kiraga, M. 2013, Acta Astron., 63, 239.
• Stępień, K., and Kiraga, M. 2015, A&A, 577, 117.
• Terrell, D., and Wilson, R.E. 2005, Astrophys., and Space Sci., 296, 221.
• Terrell, D., Gross, J., and Cooney, W.P. Jr. 2012, AJ, 143, 99.
• Terzioğlu, Z., et al. 2015, IBVS, , 6128.
• Torres, G., Andersen, J., and Giménez, A. 2010, Astronomy and Astrophysics Review, 18, 67.
• Tylenda, R., et al. 2011, A&A, 528, A114.
• Van Hamme, W. 1993, AJ, 106, 2096.
• Warner, B. 2007, The Minor Planet Bulletin, 34, 113.
• Wilson, R.E. 1979, ApJ, 234, 1054.
• Wilson, R.E., and Devinney, E.J. 1971, ApJ, 166, 605.
• Woźniak, P. R., et al. 2004, AJ, 127, 2436.
• Yakut, K., and Eggleton, P.P. 2005, ApJ, 629, 1055.
• Zola, S., et al. 2005, Acta Astron., 55, 389.
• Zola, S., Nelson, R.H., and Şenavci, H.V. 2012, New Astronomy, 17, 673.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).