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A Systematic Study on Energy Dependence of Quasi-Periodic Oscillation Frequency in GRS 1915+105

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arxiv 1107.3621 v2 pith:B6WODANU submitted 2011-07-19 astro-ph.HE

A Systematic Study on Energy Dependence of Quasi-Periodic Oscillation Frequency in GRS 1915+105

Shu-Ping Yan , Jin-Lu Qu , Guo-Qiang Ding , Peng Han , Li-Ming Song , Hong-Xing Yin , Cheng-Min Zhang , Shu Zhang
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Jian-Min Wang
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classification astro-ph.HE
keywords frequencydiscoveredenergyoscillationpatternsquasi-periodicrelationadditional
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Systematically studying all the RXTE/PCA observations for GRS 1915+105 before November 2010, we have discovered three additional patterns in the relation between Quasi-Periodic Oscillation (QPO) frequency and photon energy, extending earlier outcomes reported by Qu et al. (2010). We have confirmed that as QPO frequency increases, the relation evolves from the negative correlation to positive one. The newly discovered patterns provide new constraints on the QPO models.

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