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Microvariability Detection of Mrk 421
The BL Lac object Mrk 421 was observed in optical bands from 2009 April to
2012 May with the 1.0 m telescope at Weihai Observatory of Shandong University.
Microvariability was analysed by C and F tests, but no significant
microvariability was detected during our observations.Comment: 2 pages, 1 figur
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