期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 369, 期 3, 页码 1229-1234出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2006.10368.x
关键词
accretion, accretion discs; stars : individual : PQ Gem (RE J0751+14); novae, cataclysmic variables; X-rays : binaries
资金
- STFC [PP/D000955/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/D000955/1] Funding Source: researchfish
The intermediate polar PQ Geminorum shows a complex pulsation, caused by a spinning white dwarf, which varies markedly with wavelength. We report XMM-Newton observations, including the soft and hard X-ray bands and the first ultraviolet light curves of this star. We update the ephemeris for PQ Gem allowing us to align these data with a compilation of light curves from the optical to the X-ray. Building on work by previous authors, we show how a model in which accretion flows along skewed field lines, viewed at the correct inclination, can explain the major features of the light curves in all bands. We discuss how the skew of the field lines relates to the spinning down of the white dwarf rotation.
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