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Classical Novae as Supersoft X-ray Sources in the Andromeda Galaxy

Published online by Cambridge University Press:  17 January 2013

Martin Henze
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, Germany email: [email protected]
Wolfgang Pietsch
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, Germany email: [email protected]
Frank Haberl
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, Germany email: [email protected]
Margarita Hernanz
Affiliation:
Institut de Ciències de l'Espai (CSIC-IEEC), Campus UAB, Fac. Ciències, E-08193 Bellaterra, Spain
Gloria Sala
Affiliation:
Departament de Física i Enginyeria Nuclear, EUETIB (UPC-IEEC), Comte d'Urgell 187, E-08036 Barcelona, Spain
Massimo Della Valle
Affiliation:
INAF-Napoli, Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, I-80131 Napoli, Italy International Centre for Relativistic Astrophysics, Piazzale della Repubblica 2, I-65122 Pescara, Italy
Despina Hatzidimitriou
Affiliation:
Department of Astrophysics, Astronomy and Mechanics, Faculty of Physics, University of Athens, Panepistimiopolis, GR15784 Zografos, Athens, Greece Foundation for Research and Technology Hellas, IESL, Greece
Arne Rau
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, Germany email: [email protected]
Dieter H. Hartmann
Affiliation:
Department of Physics and Astronomy, Clemson University, Clemson, SC 29634-0978, USA
Vadim Burwitz
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, Germany email: [email protected]
Jochen Greiner
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstraße, D-85748 Garching, Germany email: [email protected]
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Abstract

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We review the first results of a dedicated, on-going monitoring project for supersoft X-ray source (SSS) states of classical novae (CNe) in the central region of the Andromeda galaxy (M 31). So far, during three high-cadence observation campaigns with the X-ray telescopes XMM-Newton and Chandra from 2006 until 2009 we detected 21 CNe, only four of which were seen in X-rays before. This increased the total number of known CNe with X-ray counterparts in M 31 to 60, which is significantly larger than for any other galaxy, including the Milky Way. We compiled a catalog of X-ray and optical properties for these 60 sources which allowed us to perform source statistics and population studies of CNe with SSS state in M 31 for the first time. Here we review the results of this analysis: (i) several correlations between X-ray and optical parameters, (ii) an analysis of the intrinsic fraction of CNe with SSS state, and (iii) the first nova population study in X-rays. Our first results are promising, however a continuing monitoring of the unique target M 31 is strongly needed to extend this valuable data base and to refine the early statements and predictions.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013

References

Beaton, R. L., Majewski, S. R., Guhathakurta, P., et al. 2007, ApJ, 658, L91Google Scholar
Bode, M. F. & Evans, A. 2008, Classical Novae, ed. Bode, M. F. & Evans, A., Cambridge University PressGoogle Scholar
Catalán, S., Isern, J., García-Berro, E., & Ribas, I. 2008, MNRAS, 387, 1693Google Scholar
Darnley, M. J., Bode, M. F., Kerins, E., et al. 2006, MNRAS, 369, 257Google Scholar
Hachisu, I. & Kato, M. 2006, ApJS, 167, 59CrossRefGoogle Scholar
Hachisu, I. & Kato, M. 2010, ApJ, 709, 680Google Scholar
Hatano, K., Branch, D., Fisher, A., & Starrfield, S. 1997, ApJ, 487, L45CrossRefGoogle Scholar
Henze, M., Meusinger, H., & Pietsch, W. 2008, A&A, 477, 67Google Scholar
Henze, M., Pietsch, W., Haberl, F., et al. 2010, A&A, 523, A89Google Scholar
Henze, M., Pietsch, W., Haberl, F., et al. 2011, A&A, 533, A52 [HPH2011]Google Scholar
Henze, M., Pietsch, W., Haberl, F., et al. 2009, A&A, 500, 769Google Scholar
Holland, S. 1998, AJ, 115, 1916Google Scholar
Kahabka, P. & van den Heuvel, E. P. J. 1997, ARA&A, 35, 69Google Scholar
Kasliwal, M. M., Cenko, S. B., Kulkarni, S. R., et al. 2011, ApJ, 735, 94Google Scholar
Krautter, J. 2002, in American Institute of Physics Conference Series, Vol. 637, Classical Nova Explosions, ed. Hernanz, M. & José, J., 345Google Scholar
Livio, M. 1992, ApJ, 393, 516Google Scholar
Ness, J.-U., Osborne, J. P., Dobrotka, A., et al. 2011, ApJ, 733, 70Google Scholar
Pietsch, W. 2010, Astronomische Nachrichten, 331, 187Google Scholar
Pietsch, W., Fliri, J., Freyberg, M. J., et al. 2005, A&A, 442, 879Google Scholar
Pietsch, W., Haberl, F., Sala, G., et al. 2007, A&A, 465, 375Google Scholar
Rau, A., Burwitz, V., Cenko, S. B., et al. 2007, The Astronomer's Telegram, 1242, 1Google Scholar
Rauch, T., Orio, M., Gonzales-Riestra, R., et al. 2010, ApJ, 717, 363CrossRefGoogle Scholar
Ritter, H., Politano, M., Livio, M., & Webbink, R. F. 1991, ApJ, 376, 177Google Scholar
Sala, G. & Hernanz, M. 2005, A&A, 439, 1061Google Scholar
Shafter, A. W., Darnley, M. J., Hornoch, K., et al. 2011, ApJ, 734, 12Google Scholar
Shafter, A. W. & Irby, B. K. 2001, ApJ, 563, 749Google Scholar
Shafter, A. W. & Quimby, R. M. 2007, ApJ, 671, L121Google Scholar
Stanek, K. Z. & Garnavich, P. M. 1998, ApJ, 503, L131Google Scholar
Stark, A. A., Gammie, C. F., Wilson, R. W., et al. 1992, ApJS, 79, 77Google Scholar
Starrfield, S. 1989, in Classical Novae, 39Google Scholar
Starrfield, S., Sparks, W. M., & Truran, J. W. 1974, ApJS, 28, 247Google Scholar
Stiele, H., Pietsch, W., Haberl, F., et al. 2011 [arXiv:1106.4755]Google Scholar
Truran, J. W. & Livio, M. 1986, ApJ, 308, 721CrossRefGoogle Scholar
Tuchman, Y. & Truran, J. W. 1998, ApJ, 503, 381Google Scholar
van Rossum, D. R. & Ness, J. 2010, Astronomische Nachrichten, 331, 175CrossRefGoogle Scholar
Yuan, F., Quimby, R. M., Chamarro, D. C., et al. 2009, Information Bulletin on Variable Stars, 5869, 1Google Scholar