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- W68697256 abstract "We analyse the EXOSAT data of the October 1984 superoutburst of the dwarf nova VW Hydri. We use the upper limit to the flux at 650 A, measured by VOYAGER, to argue that the spectral component that dominates at 1000 A does not significantly contribute to the counts in any of the EXOSAT filters. This is confirmed by analysis of a flux-ratio diagram, which shows that the EXOSAT data of three superoutbursts observed in 1983, 1984 and 1985 can be explained with a single optically thin spectrum with temperature varying from just above 10 5 K to ≥ 10 6 K. This implies that the x-ray spectrum remains optically thin during superoutbursts. An alternative possibility is a combination of a hot (T > 10 6 K), optically thin component with an optically thick, cooler (80 000 K < T < 100 000 K) component" @default.
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- W68697256 date "1993-03-01" @default.
- W68697256 modified "2023-09-26" @default.
- W68697256 title "The nature of the X-ray spectrum of VW Hydri" @default.
- W68697256 hasPublicationYear "1993" @default.
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