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The optical counterpart of the ultraluminous X-ray source NGC6946 ULX-1

Published online by Cambridge University Press:  01 August 2006

P. K. Abolmasov ,
S. N. Fabrika  and
O. N. Sholukhova
P. K. Abolmasov
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz 369167, Russia email: pasha@sao.ru
S. N. Fabrika
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz 369167, Russia email: pasha@sao.ru
O. N. Sholukhova
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz 369167, Russia email: pasha@sao.ru
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Abstract

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We present a study of a peculiar nebula MF16 associated with an Ultraluminous X-ray Source NGC6946 ULX-1. We use integral-field and long-slit spectral data obtained with the 6-m telescope (Russia). The nebula was for a long time considered powered by strong shocks enhancing both high-excitation and low-excitation lines. However, kinematical properties point to rather moderate expansion rates (VS ∼ 100÷200 km s−1). The total power of the emission-line source exceeds by one or two orders of magnitude the power observed expansion rate can provide, that points towards the existence of an additional source of excitation and ionization. Using CLOUDY96.01 photoionization code we derive the properties of the photoionizing source. Its total UV/EUV luminosity must be about 1040 erg/s.

Keywords

X-rays: individual (NGC6946 X8) – ISM: individual (MF16) – ISM: jets and outflows – ultraviolet: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S238: Black Holes from Stars to Galaxies – Across the Range of Masses , August 2006 , pp. 229 - 232
Copyright
Copyright © International Astronomical Union 2007

References

Abolmasov, P., Fabrika, S., Sholukhova, O. & Afanasiev, V. 2005, in Science Perspectives for 3D Spectroscopy, ed. Kissler-Patig, M., Roth., M. M. & Walsh, J. R. (Springer Berlin/Heidelberg); astro-ph/0602369Google Scholar
Abolmasov, P., Fabrika, S. & Sholukhova, O. 2007, in preparationGoogle Scholar
Afanasiev, V. L., Dodonov, S. N. & Moiseev, A. V. 2001, in Stellar Dynamics: from Classic to Modern, eds. Osipkov, L.P., Nikiforov, I.I., Saint Petersburg, 103Google Scholar
Afanasiev, V. & Moiseev, A. 2005, Astronomy Letters, 31, 194CrossRefGoogle Scholar
Begelman, M. C. 2002, ApJ, 568, L97CrossRefGoogle Scholar
Blair, W. P. & Fesen, R. A. 1994, ApJ, 424, L10371.8CrossRefGoogle Scholar
Blair, W. P., Fesen, R. A. & Schlegel, E. M. 2001, AJ, 121, 1497CrossRefGoogle Scholar
Colbert, E. J. M. & Miller, E. C. 2005, astro-ph/0402677Google Scholar
Dopita, M. A. & Sutherland, R. S. 1996, ApJs, 102, 161CrossRefGoogle Scholar
Dunne, B. C., Gruendl, R. A. & Chu, Y.-H. 2000, AJ, 119, 1172CrossRefGoogle Scholar
van Dyk, S. D.Sramek, R. A. & Weiler, K. W. 1994, ApJ, 425, 77CrossRefGoogle Scholar
Fabian, A. C. & Terlevich, R. 1996, MNRAS, 280, L5CrossRefGoogle Scholar
Fabrika, S. & Mescheryakov, A. 2001, In Galaxies and their Constituents at the Highest Angular Resolutions, Proceedings of IAU Symposium No. 205, Schilizzi, R. T. (Ed.), p. 268, astro-ph/0103070Google Scholar
Fabrika, S. 2004, Astrophysics and Space Physics Reviews, 12, 1Google Scholar
Fabrika, S., Abolmasov, P. & Sholukhova, O. 2005, in Science Perspectives for 3D Spectroscopy, eds. Kissler-Patig, M., Roth, M. M. & Walsh, J. R.Google Scholar
Fabrika, S., Karpov, S. & Abolmasov, P. 2007, in preparationGoogle Scholar
Ferland, G. J., Korista, K. T., Verner, D. A., Ferguson, J. W., Kingdon, J. B. & Verner, E. M. 1998, PASP, 110, 761CrossRefGoogle Scholar
King, A. R., Davies, M. B., Ward, M. J., Fabbiano, G. & Elvis, M. 2001, Å, 552, 109Google Scholar
Lehmann, I., Becker, T., Fabrika, S., Roth, M., Miyaji, T., Afanasiev, V. et al. 2005, Å, 431, 847Google Scholar
Liu, J.-F. & Bregman, N. 2005, ApJs, 157, 59LCrossRefGoogle Scholar
Matonick, D. M. & Fesen, R. A. 1997, ApJs, 112, 49CrossRefGoogle Scholar
Osterbrock, D. E. 1974, Astrophysics of Gaseous Nebulae, San Francisco, eds. Freeman, W. H. and CompanyGoogle Scholar
Pakull, M. W. & Mirioni, L. 2003, RevMexAA (Serie de Conferencias), 15, 197Google Scholar
Poutanen, J., Fabrika, S., Butkevich, A. & Abolmasov, P. 2006, in pressGoogle Scholar
Roberts, T. P. & Colbert, E. J. M. 2003, MNRAS, 341, 49CrossRefGoogle Scholar
Schlegel, D. J., Finkbeiner, P. F. & Davis, M. 1998, ApJ, 500, 525CrossRefGoogle Scholar
Shakura, N. I. & Sunyaev, R. A. 1973, A&A, 24, 337Google Scholar
Swartz, A. D., Ghosh, K. K., Tennant, A. F. & Wu, K. 2004, ApJs, 154, 519CrossRefGoogle Scholar