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- W2000645918 abstract "view Abstract Citations (7) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Quasi-periodic Oscillations in the Cataclysmic Variable KR Aurigae Singh, Jyoti ; Rao, P. Vivekananda ; Agrawal, P. C. ; Apparao, K. M. V. ; Manchanda, R. K. ; Sanwal, B. B. ; Sarma, M. B. K. Abstract We present fast photometric observations of KR Aurigae, a nova-like variable, made during 1984-1988, in the B and U bands. The light curves show large-amplitude pulsations with periods in the range 480-780 s. The period is found to be different even on consecutive nights and, therefore, these pulsations are interpreted as quasi-periodic in nature. The pulsation periods in the bright state are positively correlated with the source intensity, but the low-state periods do not follow this linear trend. We discuss possible explanations of the quasi-periodic oscillations. Pulsations with period in the 1050-1600 s range are also found in the data, which can be attributed to broader features seen in the light curves. We also present the X-ray results from analysis of the observations made with the Einstein Observatory. The X-ray spectrum is found to be soft with a large hydrogen column density. Publication: The Astrophysical Journal Pub Date: December 1993 DOI: 10.1086/173487 Bibcode: 1993ApJ...419..337S Keywords: STARS: BINARIES: GENERAL; STARS: NOVAE; CATACLYSMIC VARIABLES; STARS: INDIVIDUAL CONSTELLATION NAME: KR AURIGAE; STARS: OSCILLATIONS full text sources ADS | data products SIMBAD (1)" @default.
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- W2000645918 date "1993-12-01" @default.
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- W2000645918 title "Quasi-periodic Oscillations in the Cataclysmic Variable KR Aurigae" @default.
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