The Library

Absolute dimensions of eclipsing binaries. XXVI, Setting a new standard : masses, radii, and abundances for the F-type systems AD Bootis, VZ Hydrae, and WZ Ophiuchi

Tools

Clausen, J. V., Torres, G., Bruntt, H., Andersen, J. (Johannes), Nordström, Birgitta, Stefanik, R. P., Latham, David W. and Southworth, J. (John). (2008) Absolute dimensions of eclipsing binaries. XXVI, Setting a new standard : masses, radii, and abundances for the F-type systems AD Bootis, VZ Hydrae, and WZ Ophiuchi. Astronomy & Astrophysics, Vol.487 (No.3). pp. 1095-1117. ISSN 0004-6361

PDF
WRAP_Southworth_38_absolute_dimensions_aa09671-08.pdf - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (1831Kb)

Official URL: http://dx.doi.org/10.1051/0004-6361:200809671

Abstract

Context. Accurate mass, radius, and abundance determinations from binaries provide important information on stellar evolution, fundamental to central fields in modern astrophysics and cosmology. Aims. We aim to determine absolute dimensions and abundances for the three F-type main-sequence detached eclipsing binaries ADBoo, VZHya, and WZOph and to perform a detailed comparison with results from recent stellar evolutionary models. Methods. uvby light curves and uvbyβ standard photometry were obtained with the Strömgren Automatic Telescope at ESO, La Silla, radial velocity observations at CfA facilities, and supplementary high-resolution spectra with ESO’s FEROS spectrograph. State-ofthe-art methods were applied for the analyses: the EBOP andWilson-Devinney binary models, two-dimensional cross-correlation and disentangling, and the VWA abundance analysis tool. Results. Masses and radii that are precise to 0.5–0.7% and 0.4–0.9%, respectively, have been established for the components, which span the ranges of 1.1 to 1.4 M and 1.1 to 1.6 R. The [Fe/H] abundances are from –0.27 to +0.10, with uncertainties between 0.07 and 0.15 dex. We find indications of a slight α-element overabundance of [α/Fe] ∼ +0.1 for WZOph. The secondary component of ADBoo and both components of WZOph appear to be slightly active. Yale-Yonsai and Victoria-Regina evolutionary models fit the components of ADBoo and VZHya almost equally well, assuming coeval formation, at ages of about 1.75/1.50 Gyr (ADBoo) and 1.25/1.00 Gyr (VZHya). BaSTI models, however, predict somewhat different ages for the primary and secondary components. For WZOph, the models from all three grids are significantly hotter than observed. A low He content, decreased envelope convection coupled with surface activity, and/or higher interstellar absorption would remove the discrepancy, but its cause has not been definitively identified. Conclusions. We have demonstrated the power of testing and comparing recent stellar evolutionary models using eclipsing binaries, provided their abundances are known. The strongest limitations and challenges are set by Teff and interstellar absorption determinations, and by their effects on and correlation with abundance results.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Eclipsing binaries, Stars -- Evolution, Double stars -- Masses, Cosmic abundances
Journal or Publication Title:	Astronomy & Astrophysics
Publisher:	E D P Sciences
ISSN:	0004-6361
Date:	September 2008
Volume:	Vol.487
Number:	No.3
Page Range:	pp. 1095-1117
Identification Number:	10.1051/0004-6361:200809671
Status:	Peer Reviewed
Access rights to Published version:	Open Access
Funder:	Danmarks Grundforskningsfond [Danish National Research Foundation], National Science Foundation (U.S.) (NSF), Carlsbergfondet (Copenhagen, Denmark) [Carlsberg foundation], United States. National Aeronautics and Space Administration (NASA)
Grant number:	AST-0406183 (NSF), AST-0708229 (NSF)
References:	Alonso, A., Arribas, S., & Martínez-Roger, C. 1996, A&A, 313, 873 Andersen, J. 1991, A&AR, 3, 91 Baraffe, I., Chabrier, G., Allard, F., & Hauschildt, P. 1998, A&A, 337, 403 Basu, S., & Antia, H. M. 2007, [arXiv:astro-ph/07114590] Bessell, M. S., Castelli, F., & Plez, B. 1998, A&A, 333, 231 Bruntt, H., Catala, C., Garrido, R., et al. 2002, A&A, 389, 345 Bruntt, H., Bikmaev, I. F., Catala, C., et al. 2004, A&A, 425, 683 Bruntt, H., De Cat, P., & Aerts, C. 2008, A&A, 478, 487 Casey, B.W.,Mathieu, R. D., Vaz, L. P. R., Andersen, J., & Suntzeff, N. B. 1998, AJ, 115, 1617 Cester, B., Fedel, B., Giuricin, G., et al. 1978, A&AS, 32, 351 Claret, A., 2000, A&A, 363, 1081 Clausen, J. V. 2004, New A Rev., 48, 679 Clausen, J. V., Baraffe, I., Claret, A., & VandenBerg, D. B. 1999, in Theory and Tests of Convection in Stellar Structure, ed. A. Giménez, E. F. Guinan, & B. Montesinos, ASP Conf. Ser., 173, 265 Clausen, J. V., Helt, B. E., & Olsen, E. H. 2001, A&A, 374, 980 Clausen, J. V., Vaz, L. P. R., García, J. M., et al. 2008, A&A, 487, 1081 (CVG08) Code, A. D., Bless, R. C., Davis, J., & Brown, R. H. 1976, ApJ, 203, 417 Degl’Innocenti, S., Prada Moroni, P. G., Marconi, M., & Ruoppo, A. 2007, Ap&SS.tmp..291D (online) Demarque, P., Woo, J.-H., Kim, Y.-C., & Yi, S. K. 2004, ApJS, 155, 667 Díaz-Cordovés, J., Claret, A., & Giménez, A. 1995, A&AS, 110, 329 ESA 1997, The Hipparcos and Tycho Catalogues, ESA SP-1200 Edvardsson, B., Andersen, J., Gustafsson, B., et al. 1993, A&A, 275, 101 Etzel, P. B. 1981, in Photometric and Spectroscopic Binary Systems, ed. E. B. Carling, & Z. Kopal, 111 Flower, P. J. 1996, ApJ, 469, 355 Gray, D. F. 2004, PASP, 106, 1248 Girardi, L., Bertelli, G., Bressan, A., et al. 2002, A&A, 391, 195 Grevesse, N., & Noels, A. 1993, Phys. Scr. T47, 133 Grevesse, N., & Sauval, A. J. 1998, Space Sci. Rev., 85, 161 Grevesse, N., Noels, A., & Sauval, A. J. 1996, in Cosmic Abundances, ed. S. S. Holt, & G. Sonneborn (San Francisco: ASP), 117 Grevesse, N., Asplund, M., & Sauval, A. J. 2007, Space Sci. Rev., 130, 105 Grundahl, F., Arentoft, T., Bruntt, H., et al. 2006, Mem. Soc. Astron. It., 77, 433 Gustafsson, B., Bell, R. A., Eriksson, K., & Nordlund, Å. 1975 A&A, 42, 407 Hakkila, J., Myers, J. M., Stidham, B. J., & Hartmann, D. H. 1997, AJ, 114, 2043 Hall, D. S. 1994, Mem. Soc. Astron. It., 65, 73 Heiter, U., Kupka, F., van’t Menneret, C., et al. 2002, A&A, 392, 619 Holmberg, J., Nordström, B., & Andersen, J. 2007, A&A, 475, 519 Jørgensen, U. G., Johnson, H. R., & Nordlund, Å 1992, A&A, 261, 263 Kaufer, A., Stahl, O., Tubbesing, S., et al. 1999, The ESO Messenger, 95, 8 Kaufer, A., Stahl, O., Tubbesing, S., et al. 2000, in Optical and IR Telescope Instrumentation and Detectors, ed. M. Iye, & A. F. Morwood, Proc. SPIE 4008, 459 Kervella, P., Thévenin, F., Di Folco, E., & Ségransan, D. 2004, A&A, 426, 297 Kim, Y.-C., Demarque, P., Yi, S. K., & Alexander, D. R. 2002, ApJS, 143, 499 Klinglesmith, D. A., & Sobieski, S. 1970, AJ, 75, 175 Kovtyukh, V. V., Soubiran, C., Belik, S. I., & Gorlova, N. I. 2003, A&A, 411, 559 Kupka, F., Piskunov, N., Ryabchikova, T. A., Stempels, H. C., &Weiss,W. 1999, A&AS, 138, 119 Kurucz, R. L., 1993, in Light Curve Modelling of Eclipsing Binary Stars, ed. E. F. Milone (Springer Verlag), 93 Lacy, C. H. 1977, ApJS, 34, 479 Lacy, C. H. 1985, Inf. Bull. Var. Stars, 2685 Lacy, C. H. S. 1997, AJ, 113, 1406 Latham, D. W. 1992, in Complementary Approaches to Double and Multiple Star Research, ed. H. A. McAlister, & W. I. Hartkopf (San Francisco: ASP), IAU Coll. 135, ASP Conf. Ser. 32, 110 Latham, D. W., Nordström, B., Andersen, J., et al. 1996, A&A, 314, 864 Latham, D. W., Stefanik, R. P., Torres, G., et al. 2002, AJ, 124, 1144 Martynov D. Ya. 1973, in Eclipsing Variable Stars, ed. V. P. Tsesevich, Israel Program for Scientific Translation, Jerusalem Masana, E., Jordi, C., & Ribas, I. 2006, A&A, 450, 735 Moon, T. T., & Dworetsky, M. M. 1985, MNRAS, 217, 305 Nelson, B., & Davis, W. 1972, ApJ, 174, 617 Nordlund, Å., & Vaz, L. P. R. 1990, A&A, 228, 231 Nordström, B., Latham, D. W., Morse, J. A., et al. 1994, A&A, 287, 338 O’Connell, J. K. 1932, Harvard Bull, No. 889, 7 Olsen, E. H. 1988, A&A, 189, 173 Padalia, T. D. 1986, Ap&SS, 119, 395 Padalia, T. D., & Srivastava, R. K. 1975, Ap&SS, 35, 349 Pickering, E. C. 1917, Harvard Circ. No. 201 Pietrinferni, A., Cassisi, S., & Salaris, M. 2004, Mem. Soc. Astron. Italiana, 75, 170 Popper, D. M. 1965, ApJ, 141, 126 Popper, D. M. 1976, Ap&SS, 45, 391 Popper, D. M. 1980, ARA&A, 18, 115 Popper, D. M. 1998a, AJ, 115, 338 Popper, D. M. 1998b, PASP, 110, 919 Popper, D. M., & Etzel, P. B. 1981, AJ, 86, 102 Press, W. H., Flannery, B. P., Teukolsky, S. A., & Vetterling, W. T. 1992, Numerical Recepies in Fortran 77, 2nd edn. (Cambridge: Cambridge Univ. Press) Ramírez, I., & Meléndez, J. 2005, AJ, 626, 465 Sanford, R. F. 1937, ApJ, 86, 154 Santos, N. C., Israelian, G., & Mayor, M. 2004 A&A, 415, 1153 Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ, 500, 525 Simon, K. P., & Sturm, E., 1994, A&A, 281, 286 Southworth, J., Maxted, P. F. L., & Smalley, B., 2004a, MNRAS, 351, 1277 Southworth, J., Zucker, S., Maxted, P. F. L., & Smalley, B., 2004b, MNRAS, 355, 986 Southworth, J., Maxted, P. F. L., & Smalley, B. 2005, A&A, 429, 645 Strohmeier, W., Kippenhahn, R., & Geyer, E. 1956, Kleine Ver. der Remeis- Sternwarte Bamberg, No. 15 Struve, O. 1945, ApJ, 102, 74 Tomasella, L., Munari, U., Siviero, A., et al. 2007, [arXiv:astro-ph/07123387] Torres, G., Neuhäuser, R., & Guenther, E. W. 2002, AJ, 123, 1701 Torres, G., Lacy, C. H.,Marschall, L. A., Sheets, H. A, & Mader, J. A. 2006, AJ, 640, 1018 Torres, G., Stefanik, R. P., Andersen, J., et al. 1997, AJ, 114, 2764 Valenti, J., & Piskunov, N. 1996, A&AS, 118, 595 VandenBerg, D. A., Swenson, F. J., Rogers, F. J., Iglesias, C. A., & Alexander, D. R. 2000, ApJ, 532, 430 VandenBerg, D. A., Bergbusch, P. A., & Dowler, P. D. 2006 ApJS, 162, 375 van Hamme, W., 1993, AJ, 106, 2096 Vaz, L. P. R. 1984, Ph.D. Thesis, Copenhagen University (unpublished) Vaz, L. P. R. 1986, RMA&A, 12, 177 Vaz, L. P. R., Andersen, J., & Rebello Soares, M. C. A. 1995, A&A, 301, 693 Vaz, L. P. R., & Nordlund, Å. 1985, A&A, 147, 281 Walker, R. L. 1970, AJ, 75, 720 Wallace, L., Hinkle, K., & Livingston, W. 1998, An atlas of the spectrum of the solar photosphere from 13 500 to 28 000 cm−1 (3570 to 7405 A), Tucson, AZ: NOAO Wilson, R. E., 1993, in New Frontiers in Binary Star Research, ed. K.-C. Leung, & I.-S. Nha, ASP Conf. Ser. 38, 91 Wilson, R. E. 1994, PASP, 106, 921 Wilson, R. E., & Devinney, E. J. 1971, ApJ, 166, 605 Wood, D. B. 1971, AJ, 76, 701 Wood D. B. 1972, A Computer Program for Modeling Non-Spherical Eclipsing Binary Star Systems, Goddard Space Flight Center, Greenbelt, Maryland Wood, F. B. 1946, Princeton Contrib., 21, 1 Zhai, D.-S., Zhang, R.-X., & Zhang, J.-T. 1983, Acta Astrophys. Sinica, 2, 224 Zucker, S., & Mazeh, T. 1994, ApJ, 420, 806
URI:	http://wrap.warwick.ac.uk/id/eprint/3442