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Scaling relations of X-ray Luminous Clusters in the Hyper Suprime-Cam Subaru Strategic Program Field
Helen Poon, Nobuhiro Okabe, Yasushi Fukazawa +2
We present the XMM-Newton X-ray analysis of 19 X-ray luminous galaxy clusters of low-to-mid redshift () selected from the MCXC cluster catalogue in the Hyper Supri%survey as…
Flux upper limits for 47 AGN observed with H.E.S.S. in 2004-2011
H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +217
About 40% of the observation time of the High Energy Stereoscopic System (H.E.S.S.) is dedicated to studying active galactic nuclei (AGN), with the aim of increasing the sample of…
The optical microvariability and spectral changes of the BL Lacertae object S5 0716+714
H. Poon, J. H. Fan, J. N. Fu
We monitored the BL Lac object S5 0716+714 in the optical band during October 2008, December 2008 and February 2009 with a best temporal resolution of about 5 minutes in the BVRI b…