Ramsay, G. (Gavin), Barclay, Thomas, Steeghs, D. (Danny), 1972-, Wheatley, Peter J., Hakala, P., Kotko, Iwona and Rosen, S. (Simon). (2011) The long-term optical behaviour of helium-accreting AM CVn binaries. Monthly Notices of the Royal Astronomical Society, Vol.419 (No.4). pp. 2836-2843. ISSN 00358711

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Abstract

We present the results of a two and a half year optical photometric monitoring programme covering 16 AM CVn binaries using the Liverpool Telescope on La Palma. We detected outbursts in seven systems, one of which (SDSS J0129) was seen in outburst for the first time. Our study coupled with existing data shows that 1/3 of these helium-rich accreting compact binaries show outbursts. The orbital period of the outbursting systems lies in the range 24–44 min and is remarkably consistent with disc-instability predictions. The characteristics of the outbursts seem to be broadly correlated with their orbital period (and hence mass transfer rate). Systems which have short periods (30 min) tend to exhibit outbursts lasting 1–2 weeks and often show a distinct ‘dip’ in flux shortly after the onset of the burst. We explore the nature of these dips which are also seen in the near-ultraviolet. The longer period bursters show higher amplitude events (5 mag) that can last several months. We have made simulations to estimate how many outbursts we are likely to have missed.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Double stars, Starbursts
Journal or Publication Title:	Monthly Notices of the Royal Astronomical Society
Publisher:	Wiley
ISSN:	00358711
Date:	2011
Volume:	Vol.419
Number:	No.4
Page Range:	pp. 2836-2843
Identification Number:	10.1111/j.1365-2966.2011.19924.x
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Science and Technology Facilities Council (Great Britain) (STFC)
References:	Abbott, T. M. C., Robinson, E. L., Hill, G. J., Haswell, C. A., 1992, ApJ, 399, 680 Anderson, S. F., et al., 2005, AJ, 130, 2230 Anderson, S. F., et al., 2008, AJ, 135, 2108 Barclay, T., Ramsay, G., Steeghs, D., Wheatley, P., Rosen, S., 2009, ATel, 2334 Cannizzo, J. K., Shafter, A. W., Wheeler, J. C., 1988, ApJ, 333, 227 Cannizzo, J. K., Still, M. D., Howell, S. B., Wood, M. A., Smale, A. P., 2010, ApJ, 725, 1393 Copperwheat, C. M., et al., 2011, MNRAS, 410, 1113 Deloye, C. J., Taam, R. E., Winisdoerffer, C., Chabrier, G., 2007, MNRAS, 381, 525 Espaillat, C., Patterson, J., Warner, B., Woudt, P., 2005, PASP, 117, 189 Fontaine, G., et al., 2011, ApJ, 726, 92 Kato, T., 1997, PASJ, 49, 583 Kato, T., et al., 2001, IBVS, 5120 Kato, T., Stubbings, R., Monard, B., Butterworth, N. D., Bolt, G., Richards, T., 2004, PASJ, 56, S89 Kotko, I., Lasota, J.-P., Dubus, G., 2010, AN, 331, 231 Lasota, J.-P., 2001, NewAR, 45, 449 Lasota, J.-P., Dubus, G., Kruk, K., 2008, A&A, L523 Levitan, D., et al., accepted, ApJ, arXiv:1107.1209 Luyten, W. J. & Haro, G., 1959, PASP, 71, 469 Nather, R. E., Robinson, E. L., Stover, R. J., 1981, ApJ, 244, 269 Nelemans, G., Steeghs, D., Groot, P. J., 2001, MNRAS, 326, 621 Nelemans, G., Portegies Zwart, S. F., Verbunt, F., Yungelson, L. R., 2001, A&A, 368, 939 Nelemans, G., Yungelson, L. R., Portegies Zwart, S. F., 2004, MNRAS, 349, 181 Nogami, D., Monard, B., Retter, A., Liu, A., Uemura, M., Ishioka, R., Imada, A., Kato, T., 2004, PASP, 56, L39 O’Donoghue, D., Kilkenny, D., Chen, A., Stobie, R. S., Koen, C., Warner, B., Lawson, W. A., 1994, MNRAS, 271, 910 Osaki, Y., 1996, PASP, 108, 39 Osaki, Y., Meyer, F., Meyer-Hofmeister, E., 2001, A&A, 370, 488 Patterson, J., et al., 1997, PASP, 109, 1100 Patterson, J., Walker, S., Kemp, J., O’Donoghue, D., Bos, M., Stubbings, R., 2000, PASP, 112, 625 Prieto, J., Anderson, S., Becker, A., Marriner, J., Sako, M., Jha, S., 2006, CBET, 692 Rau, A., Roelofs, G. H. A., Groot, P. J., Marsh, T. R., Nelemans, G., Steeghs, D., Salvato, M., Kasliwal, M. M., 2010, ApJ, 708, 456 Ramsay, G., Cropper, M., Wu, K., Mason, K. O., Hakala, P., 2000, MNRAS, 311, 75 Ramsay, G., Cropper, M., Hakala, P., 2002, MNRAS, 332, L7 Ramsay, G., et al., 2010, MNRAS, 407, 1819 Roelofs, G. H. A., Groot, P. J., Marsh, T. M., Steeghs, D., Barros, S. C. C., Nelemans, G., 2005, MNRAS, 361, 487 Roelofs, G. H. A., Groot, P. J., Steeghs, D., Marsh, T. R., Nele- mans, G., 2007a, MNRAS, 382, 1643 Roelofs, G. H. A., Groot, P. J., Benedict, G. F., McArthur, B. E., Steeghs, D., Morales-Rueda, L., Marsh, T. R., Nelemans, G., 2007b, ASPC, 372, 437 Roelofs, G. H. A., Nelemans, G., Groot, P. J., 2007c, MNRAS, 382, 685 Roelofs, G. H. A. et al., 2009, MNRAS, 394, 367 Ruiz, M. T., Rojo, P. M., Garay, G., Maza, J., 2001, ApJ, 552 679 Shears, J., Brady, S., Koff, R., Goff,W., Boyd, D., in press, JBAA, arXiv:1104.0107 Smak, J., 1983, AcA, 33, 333 Solheim, J. -E., 2010, PASP, 122, 1133 Steele, I. A., 2004, Proceedings of the SPIE, Vol. 5489, 679 Tsugawa, M. & Osaki, Y., 1997, PASJ, 49, 75 van der Woerd, H., van Paradijs, J., 1987, MNRAS, 224, 271 Whitehurst, R., 1988, MNRAS, 232, 35 Wood, M. A., Winget, D. E., Nather, R. E., Hessman, F. V., Liebert, J., Kurtz, D. W., Wesemael, F., Wegner, G., 1987, ApJ, 313, 757 Wood, M. A., Casey, M. J., Garnavich, P. M., Haag, B., 2002, MNRAS, 334, 87 Wood-Vasey, W. M., Aldering, G., Nugent, P., Li, K., 2003, IAUC 8077 Woudt, P. A., Warner, B., Rykoff, E., 2005, IAUC, 8531 Woudt, P. A., Warner, B., 2003, MNRAS, 345, 1266
URI:	http://wrap.warwick.ac.uk/id/eprint/45942

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