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The binary properties of the pulsating subdwarf B eclipsing binary PG 1336-018 (NY Virginis)

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Vučković, M., Aerts, Conny, Østensen, R., Nelemans, G., Hu, H., Jeffery, C. S., Dhillon, V. S. and Marsh, T. R.. (2007) The binary properties of the pulsating subdwarf B eclipsing binary PG 1336-018 (NY Virginis). Astronomy & Astrophysics, Vol.471 (No.2). pp. 605-615. ISSN 0004-6361

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Official URL: http://dx.doi.org/10.1051/0004-6361:20077179

Abstract

Aims. We present an unbiased orbit solution and mass determination of the components of the eclipsing binary PG1336−018 as a critical test for the formation scenarios of subdwarf B stars.
Methods. We obtained high-resolution time series VLT/UVES spectra and high-speed multicolour VLT/ULTRACAM photometric
observations of PG1336−018, a rapidly pulsating subdwarf B star in a short period eclipsing binary.
Results. Combining the radial velocity curve obtained from the VLT/UVES spectra with the VLT/ULTRACAM multicolour
lightcurves, we determined numerical orbital solutions for this eclipsing binary. Due to the large number of free parameters and their strong correlations, no unique solution could be found, only families of solutions. We present three solutions of equal statistical
significance, two of which are compatible with the primary having gone through a core He-flash and a common-envelope phase described by the α-formalism. These two models have an sdB primary of 0.466 M and 0.389 M, respectively. Finally, we report the detection of the Rossiter-McLaughlin effect for PG1336−018.

Item Type:

Journal Article

Subjects:

Q Science > QB Astronomy

Divisions:

Faculty of Science > Physics

Library of Congress Subject Headings (LCSH):

Eclipsing binaries, B stars, Pulsating stars

Journal or Publication Title:

Astronomy & Astrophysics

Publisher:

EDP Sciences

ISSN:

0004-6361

Official Date:

August 2007

Dates:

Date	Event
August 2007	Published

Volume:

Vol.471

Number:

No.2

Page Range:

pp. 605-615

Identification Number:

10.1051/0004-6361:20077179

Status:

Peer Reviewed

Access rights to Published version:

Open Access

Funder:

Katholieke Universiteit te Leuven (1970- ), Radboud Universiteit Nijmegen, Particle Physics and Astronomy Research Council (Great Britain) (PPARC)

Grant number:

GOA/2003/04 (Leuven), PPA/G/S/2003/00058 (PPARC), PP/D002370/1 (PPARC)

References:

Aerts, C., & Eyer, L. 2000, in Delta Scuti and Related Stars, ed. M. Breger, &
M. Montgomery, ASP Conf. Ser., 210, 113
Al-Naimiy, H. M. 1978, Ap&SS, 53, 181
Behara, N. T., & Jeffery, C. S. 2006, A&A, 451, 643
Brassard, P., Fontaine, G., Billères, M., et al. 2001, ApJ, 563, 1013
Briquet, M., & Aerts, C. 2003, A&A, 398, 687
Charpinet, S., Fontaine, G., Brassard, P., & Dorman, B. 1996, ApJ, 471, L103
Charpinet, S., Fontaine, G., Brassard, P., & Dorman, B. 2000, ApJS, 131, 223
Charpinet, S., Fontaine, G., Brassard, P., Green, E.M., & Chayer, P. 2005, A&A,
437, 575
Dhillon, V., & Marsh, T. 2001, New Astronomy Review, 45, 91
Dorman, B., Rood, R. T., & O’Connell, R. W. 1993, ApJ, 419, 596
Drechsel, H., Heber, U., Napiwotzki, R., et al. 2001, A&A, 379, 893
Dreizler, S., Koester, D., & Heber, U. 2000, Baltic Astronomy, 9, 113
Dupret, M.-A., De Ridder, J., De Cat, P., et al. 2003, A&A, 398, 677
Fukugita, M., Ichikawa, T., Gunn, J. E., et al. 1996, AJ, 111, 1748
Fusi-Pecci, F., & Renzini, A. 1976, A&A, 46, 447
Gaudi, B. S., & Winn, J. N. 2007, ApJ, 655, 550
Giménez, A. 2006, ApJ, 650, 408
Green, E. M., Fontaine, G., Reed, M. D., et al. 2003, ApJ, 583, L31
Green, R. F., Schmidt, M., & Liebert, J. 1986, ApJS, 61, 305
Han, Z., Podsiadlowski, P., Maxted, P. F. L., Marsh, T. R., & Ivanova, N. 2002,
MNRAS, 336, 449
Han, Z., Podsiadlowski, P.,Maxted, P. F. L., & Marsh, T. R. 2003, MNRAS, 341,
669
Heber, U., Reid, I. N., & Werner, K. 2000, A&A, 363, 198
Hekker, S., Aerts, C., de Ridder, J., & Carrier, F. 2006, A&A, 458, 931
Jeffery, C. S., Aerts, C., Dhillon, V. S., Marsh, T. R., & Gänsicke, B. T. 2005,
MNRAS, 362, 66
Kilkenny, D., Koen, C., O’Donoghue, D., & Stobie, R. S. 1997, MNRAS, 285,
640
Kilkenny, D., O’Donoghue, D., Koen, C., Lynas-Gray, A. E., & van Wyk, F.
1998, MNRAS, 296, 329
Kilkenny, D., Keuris, S., Marang, F., et al. 2000, The Observatory, 120, 48
Kilkenny, D., Reed, M. D., O’Donoghue, D., et al. 2003, MNRAS, 345, 834
Lenz, P., & Breger, M. 2004, in IAU Symposium, ed. J. E. A. Zverko, 786
Mathias, P., & Aerts, C. 1996, A&A, 312, 905
Maxted, P. f. L., Heber, U., Marsh, T. R., & North, R. C. 2001, MNRAS, 326,
1391
McLaughlin, D. B. 1924, ApJ, 60, 22
Menzies, J. W., & Marang, F. 1986, in Instrumentation and Research
Programmes for Small Telescopes, ed. J. B. Hearnshaw, & P. L. Cottrell, IAU
Symp., 118, 305
Morales-Rueda, L., Maxted, P. F. L., Marsh, T. R., North, R. C., & Heber, U.
2003, MNRAS, 338, 752
Morales-Rueda, L.,Maxted, P. F. L.,Marsh, T. R., Kilkenny, D.,& O’Donoghue,
D. 2006, Baltic Astron., 15, 187
Mukai, K. 1990, PASP, 102, 183
Napiwotzki, R., Karl, C. A., Lisker, T., et al. 2004, Ap&SS, 291, 321
Nelemans, G., & Tout, C. A. 2005, MNRAS, 356, 753
Nelemans, G., Verbunt, F., Yungelson, L. R., & Portegies Zwart, S. F. 2000,
A&A, 360, 1011
Ohta, Y., Taruya, A., & Suto, Y. 2005, ApJ, 622, 1118
Østensen, R., Oreiro, R., Drechsel, H., Heber, U., & Pigulski, A. 2007, in ASP
Conf. Ser., 15th European Workshop on White Dwarfs, ed. R. Napiwotzki, in
press
Prša, A., & Zwitter, T. 2005, ApJ, 628, 426
Queloz, D., Eggenberger, A., Mayor, M., et al. 2000, A&A, 359, L13
Randall, S. K., Fontaine, G., Brassard, P., & Bergeron, P. 2005, ApJS, 161, 456
Rauch, T., & Werner, K. 2003, A&A, 400, 271
Rossiter, R. A. 1924, ApJ, 60, 15
Wade, R. A., & Rucinski, S. M. 1985, A&AS, 60, 471
Wilson, R. E., & Devinney, E. J. 1971, ApJ, 166, 605
Wood, J. H., Zhang, E.-H., & Robinson, E. L. 1993, MNRAS, 261, 103
Woolf, V. M., Jeffery, C. S., & Pollacco, D. 2003, in NATO ASIB Proc. 105,
White Dwarfs, ed. D. E. A. de Martino, 95
Zima, W. 2006, A&A, 455, 227
Zola, S. 2000, Baltic Astron., 9, 197