Deductions from the Indication of Eclipses of Nova V1493 Aql |
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Authors: | Michael Friedjung Andrej Dobrotka Alon Retter Ladislav Hric Rudolf Novák |
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Affiliation: | (1) Institut d'Astrophysique, 98 bis Boulevard Arago, 75014 Paris, France;(2) Department of Physics, Faculty of Materials Science and Technology in Bratislava, Paulínska 16, 917 24 Trnava, Slovak Republic;(3) Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802-6305, USA;(4) Astronomical Institute of the Slovak Akademy of Sciences, 059 60 Tatranská Lomnica, Slovak Republic;(5) Nicholas Copernicus Observatory and Planetarium in Brno, Kraví Hora 2, 616 00 Brno, Czech Republic |
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Abstract: | Our mainly R band photometry of V1493 Aql (1999) during its outburst, indicates periodic variations with a period of 0.156 days, seen only 5 days after the maximum in V. This period can be orbital. The light curve indicates in addition, the presence of a faint eclipse like feature. We try to explain its extremely low amlitude, as being due to the eclipse of an expanded white dwarf component of the binary below an optically thick wind. We discuss what conditions would be required for such an interpretation to work. |
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Keywords: | Nova Wind |
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