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Title:
Ultraviolet photometry of Nova Cygni 1992 obtained with the high speed photometer
Authors:
Taylor, M.; Bless, R. C.; Oegelman, H.; Elliot, J. L.; Gallagher, J. S.; Nelson, M. J.; Percival, J. W.; Robinson, E. L.; van Citters, G. W.
Affiliation:
AA(University of Wisconsin, Madison, WI, US), AB(University of Wisconsin, Madison, WI, US), AC(University of Wisconsin, Madison, WI, US), AD(University of Wisconsin, Madison, WI, US), AE(University of Wisconsin, Madison, WI, US), AF(University of Wisconsin, Madison, WI, US), AG(University of Wisconsin, Madison, WI, US), AH(University of Wisconsin, Madison, WI, US), AI(National Science Foundation, Washington, DC, US)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 424, no. 1, p. L45-L48 (ApJ Homepage)
Publication Date:
03/1994
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
CATACLYSMIC VARIABLES, DATA PROCESSING, FOURIER TRANSFORMATION, LIGHT (VISIBLE RADIATION), NOVAE, PHOTOMETRY, POWER SPECTRA, WHITE DWARF STARS, HUBBLE SPACE TELESCOPE, IUE, NYQUIST FREQUENCIES, PHOTOMETERS, STELLAR MAGNITUDE, WAVELENGTHS
DOI:
10.1086/187271
Bibliographic Code:
1994ApJ...424L..45T

Abstract

In this Letter we present the first high-speed ultraviolet photometry of an active, classical nova, Nova Cygni 1992. The 45 minute observation shows significant evidence for power at frequencies that correspond to periods of about 565 and 900 s. Each of these periods has an amplitude of about 3 mmag. Since this data set is short, we cannot establish the nature of the detected variability and so, we discuss possible physical mechanisms ranging from short-lived phenomena to stable periodic modulations that could result in the observed variations.

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