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The Orbital Period of Nova V2540 Ophiuchi (2002)

Published online by Cambridge University Press:  05 March 2013

Tansel Ak*
Department of Astronomy and Space Sciences, Faculty of Science, Istanbul University, 34119 University, Istanbul, Turkey
Alon Retter
Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802-6305, USA
Alex Liu
Norcape Observatory, PO Box 300, Exmouth WA 6707, Australia
DCorresponding author. Email:
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We present the results of 26 nights of CCD photometry of the nova V2540 Oph (2002) from 2003 to 2004. We find a period of 0.284781 ± 0.000006 d (6.8347 ± 0.0001 h) in the data. Since this period was present in the light curves taken in both years, with no apparent change in its value or amplitude, we interpret it as the orbital period of the nova binary system. The mass–period relation for cataclysmic variables yields a secondary mass of about 0.75 ± 0.04 M. From maximum magnitude–rate of decline relation, we estimate a maximum absolute visual magnitude of MV = −6.2 ± 0.4 mag. This value leads to an uncorrected distance modulus of (mM) = 14.7 ± 0.7. By using the interstellar reddening for the location of V2540 Oph, we find a rough estimate for the distance of 5.2 ± 0.8 kpc. We propose that V2540 Oph is either (1) a high-inclination cataclysmic variable showing a reflection effect of the secondary star, or having a spiral structure in the accretion disc, (2) a high-inclination intermediate polar system, or less likely (3) a polar.

Research Article
Copyright © Astronomical Society of Australia 2005


Ak, T., Retter, A., & Liu, A. 2004, IAUC, No. 8449Google Scholar
Anupama, G. C., Duerbeck, H. W., Prabhu, T. P., & Jain, S. K. 1992, A&A, 263, 87 Google Scholar
Baptista, R., Jablonski, F. J., Cieslinski, D., & Steiner, J. E. 1993, ApJ, 406, L67 CrossRefGoogle Scholar
Bianchini, A., Friedjung, M., & Brinkmann, W. 1992, A&A, 257, 599 Google Scholar
Bode, M. F., & Evans, A. 1989, Classical Novae (Oxford: Alden Press)Google Scholar
Breger, M., et al. 1993, A&A, 271, 482 Google Scholar
Capaccioli, M., Della Valle, M., D'onofrio, M., & Rosino, L. 1989, AJ, 97, 1622 CrossRefGoogle Scholar
Cohen, J. G. 1985, ApJ, 292, 90 CrossRefGoogle Scholar
Cropper, M., Menzies, J. W., & Tapia, S. 1986, MNRAS, 218, 201 CrossRefGoogle Scholar
Csák, B., Kiss, L. L., Retter, A., Jacob, A., & Kaspi, S. 2005, A&A, 429, 599 Google Scholar
Della Valle, M., & Livio, M. 1995, ApJ, 452, 704 CrossRefGoogle Scholar
Downes, R. A., & Duerbeck, H. W. 2000, AJ, 120, 2007 CrossRefGoogle Scholar
Drake, J. J., et al. 2003, ApJ, 584, 448 CrossRefGoogle Scholar
Ferraz-Mello, S. 1981, AJ, 86, 619 CrossRefGoogle Scholar
Foster, G. 1995, AJ, 109, 1889 CrossRefGoogle Scholar
Hachisu, I., Kato, M., & Kato, T. 2004, ApJ, 606, L139 CrossRefGoogle Scholar
Haseda, K., Nakamura, Y., Soma, M., Kadota, K., & West, D. 2002, IAUC, No. 7808Google Scholar
Hellier, C. 1999, Annpolis Workshop on Magnetic Cataclysmic Variables, ASP Conf. Ser. Vol. 157, p. 1 Google Scholar
Ioannou, Z., Naylor, T., Welsh, W. F., Catalan, M. S., Worraker, W. J., & James, N. D. 1999, MNRAS, 310, 398 CrossRefGoogle Scholar
Kato, T., Ishioka, R., Uemura, M., Starkey, D. R., & Krajci, T. 2004, PASJ, 56, 125 CrossRefGoogle Scholar
Kato, T., Yamaoka, H., & Ishioka, R. 2002, IBVS, No. 5309Google Scholar
Kiss, L. L., & Thomson, J. R. 2000, A&A, 355, L9 Google Scholar
Leibowitz, E. M. 1993, ApJ, 411, L29 CrossRefGoogle Scholar
Ness, J. U., et al. 2003, ApJ, 594, L127 CrossRefGoogle Scholar
Patterson, J. 1999, in Disk Instabilities in Close Binary Systems, eds. S. Mineshige, & C. Wheeler (Tokyo: Universal Academic Press), p. 61 Google Scholar
Patterson, J. 2001, PASP, 113, 736 CrossRefGoogle Scholar
Patterson, J., Kemp, J., Saad, J., Skilman, D. R., Harvey, D., Fried, R., Thorstensen, J. R., & Ashley, R. 1997, PASP, 109, 468 CrossRefGoogle Scholar
Puetter, R. C., Lynch, K., Mazuk, S., Rudy, R. J., & Venturini, C. C. 2002, IAUC, No. 7938Google Scholar
Retter, A. 2002, Classical Nova Explosions: International Conference on Classical Nova Explosions, AIP Conf. Proc. Vol. 637, p. 279 Google Scholar
Retter, A., Chou, Y., Bedding, T. R., & Naylor, T. 2002b, MNRAS, 330, L37 CrossRefGoogle Scholar
Retter, A., Hellier, C., Augusteijn, T., Naylor, T., Bedding, T. R., Bembrick, C., McCormick, J., & Velthuis, F. 2003, MNRAS, 340, 679 CrossRefGoogle Scholar
Retter, A., Leibowitz, E. M., & Naylor, T. 1999, MNRAS, 308, 140 CrossRefGoogle Scholar
Retter, A., Leibowitz, E. M., & Ofek, E. O. 1997, MNRAS, 286, 745 CrossRefGoogle Scholar
Retter, A., & Naylor, T. 2000, MNRAS, 319, 510 CrossRefGoogle Scholar
Retter, A., O'Toole, S., Stathakis, R., Pogson, J., & Naylor, T. 2002a, IAUC, No. 7809Google Scholar
Roberts, D. H., Lehar, J., & Dreher, J. W. 1987, AJ, 93, 968 CrossRefGoogle Scholar
Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ, 500, 525 CrossRefGoogle Scholar
Schmidtobreick, L., Tappert, C., Bianchini, A., & Mennickent, R. E. 2005, A&A, 432, 199 Google Scholar
Seki, T., Sato, H., Kato, T., Nishimura, H., Muraoka, Y., Garcia, J., Linnolt, M., & Pearce, A. 2002, IAUC, No. 7809Google Scholar
Shaviv, N. J. 2001, MNRAS, 326, 126 CrossRefGoogle Scholar
Smith, D. A., & Dhillon, V. S. 1998, MNRAS, 301, 767 CrossRefGoogle Scholar
Somers, M. W., Mukai, K., & Naylor, T. 1996, MNRAS, 278, 845 CrossRefGoogle Scholar
Sperl, M. 1998, CoAst, 111 Google Scholar
Warner, B. 1995, Cataclysmic Variable Stars (Cambridge: Cambridge University Press)CrossRefGoogle Scholar
Warner, B. 2002, in Classical Nova Explosions: International Conference on Classical Nova Explosions, AIP Conference Proceedings, Vol. 637, p. 3 Google Scholar
Woudt, P. A., & Warner, B. 2003, MNRAS, 339, 731 CrossRefGoogle Scholar