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PU Vul: 15 Years of Studies, Important Findings and Remaining Mysteries

Published online by Cambridge University Press:  12 April 2016

R.E. Gershberg
R.E. Gershberg*
Affiliation:
Crimean Astrophysical Observatory, Nauchny, Crimea, Ukraine

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In autumn 1979, the young W. Wenzel - at this time he was only 50 years old - came to the Byurakan meeting on flare stars and informed the participants about a recently discovered flaring object: the Kuwano-Honda object = PU Vul. During that time, FU Ori and related stars were the most intriguing variable objects, and PU Vul had shown some similar features such as the rate of brightening and the spectrum at maximum. It turned out to be an extremely interesting object, and the Crimean team has studied it for the last 15 years. Over this time, this team included T.S. Belyakina, N.I. Bondar, K.K. Chuvaev, Yu.S. Efimov, R.E. Gershberg, V.I. Krasnobabtsev, E.P. Pavlenko, P.P. Petrov, I.S. Savanov, N.I. Shakhovskaya, N.M. Shakhovskoy, A.G. Shcherbakov and V.A. Shcherbakov, and we collaborated with V.I. Shenavrin from Russia, with D. Chochol, J. Grygar and L. Hric from former Czechoslovakia and with V. Piirola, I. Tuominen, M. Poutanen and J. Huovelin from Finland.

Now the number of publications on PU Vul approaches one hundred. It was established that PU Vul is a symbiotic nova, the object among the known variables of this type, whose explosion became observable most recently (with the possible exception of Wakuda’s object in Sgr, Grebel et al. 1994), and many details have been observed from the very beginning of the flare. I intend to list the most interesting findings and the most intriguing remaining mysteries of PU Vul.

Type
Cataclysmic Variables: Eruptions and Flickering
Information
International Astronomical Union Colloquium , Volume 151: Flares and Flashes , 1995 , pp. 245 - 254
Copyright
Copyright © Springer-Verlag 1995

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