Context. Globular clusters (GCs) are established emitters of high-energy (HE, 100 MeV 100 GeV) γ-ray regime, judging from the recent detection of a signal from the direction of Terzan 5 with the H.E.S.S. telescope array. Aims. To search for VHE γ-ray sources associated with other GCs, and to put constraints on leptonic emission models, we systematically analyzed the observations towards 15 GCs taken with the H.E.S.S. array of imaging atmospheric Cherenkov telescopes. Methods. We searched for point-like and extended VHE γ-ray emission from each GC in our sample and also performed a stacking analysis combining the data from all GCs to investigate the hypothesis of a population of faint emitters. Assuming IC emission as the origin of the VHE ...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
8 pages, 1 figureInternational audienceContext. Globular clusters (GCs) are established emitters of ...
8 pages, 1 figureInternational audienceContext. Globular clusters (GCs) are established emitters of ...
8 pages, 1 figureInternational audienceContext. Globular clusters (GCs) are established emitters of ...
The active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that...
International audienceContext. Flat-spectrum radio-quasars (FSRQs) are rarely detected at very high ...
The mechanisms producing fast variability of the γ-ray emission in active galactic nuclei (AGNs) are...
The quasar PKS 1510−089 (z = 0.361) was observed with the H.E.S.S. array of imaging atmospheric Cher...
The detection of the high-frequency peaked BL Lac object (HBL) SHBL J001355.9–185406 (z = 0.095) at ...
Very high-energy γ-ray emission from PKS 0447−439 was detected with the H.E.S.S. Cherenkov telescope...
International audienceThe quasar PKS 1510−089 (z = 0.361) was observed with the H.E.S.S. array of im...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
8 pages, 1 figureInternational audienceContext. Globular clusters (GCs) are established emitters of ...
8 pages, 1 figureInternational audienceContext. Globular clusters (GCs) are established emitters of ...
8 pages, 1 figureInternational audienceContext. Globular clusters (GCs) are established emitters of ...
The active galactic nucleus PKS 0301−243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that...
International audienceContext. Flat-spectrum radio-quasars (FSRQs) are rarely detected at very high ...
The mechanisms producing fast variability of the γ-ray emission in active galactic nuclei (AGNs) are...
The quasar PKS 1510−089 (z = 0.361) was observed with the H.E.S.S. array of imaging atmospheric Cher...
The detection of the high-frequency peaked BL Lac object (HBL) SHBL J001355.9–185406 (z = 0.095) at ...
Very high-energy γ-ray emission from PKS 0447−439 was detected with the H.E.S.S. Cherenkov telescope...
International audienceThe quasar PKS 1510−089 (z = 0.361) was observed with the H.E.S.S. array of im...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...
7 pages, 4 figures, 1 table, accepted for publication in A&AInternational audienceThe quasar PKS 151...