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19982011
most citedLong Term Variability of Cyg X-1 I. X-ray spectral-temporal correlations in the hard state

214 citations · 1.3k across the 14 of their papers we have counts for

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astro-ph2000★ 127 cited

Complex Spectral Variability from Intensive Multi-wavelength Monitoring of Mrk421 in 1998

T. Takahashi, J. Kataoka, G. Madejski +20

We conducted a multi-frequency campaign for the TeV blazar Mrk~421 in 1998 April. The campaign started from a pronounced high amplitude flare recorded by SAX and Whipple; ASCA obse…