Very High Energy (VHE) gamma-ray emission from the flat spectrum radio quasar PKS 1222+21 (4C 21.35, z=0.432) was detected with the MAGIC Cherenkov telescopes during a short observation (~0.5 h) performed on 2010 June 17. The MAGIC detection coincides with high energy MeV/GeV gamma-ray activity measured by the Large Area Telescope (LAT) on board the Fermi satellite. The VHE spectrum measured by MAGIC extends from about 70 GeV up to at least 400 GeV and can be well described by a power law dN/dE e^(-G) with a photon index G = 3.75+/-0.27stat +/-0.2syst. The averaged integral flux above 100 GeV is (4.56+/-0.46) 10^(-10) cm^(-2 )s^(-1). The VHE flux measured by MAGIC varies significantly within the 30 min exposure implying a flux doubling time...
The discovery of rapidly variable Very High Energy (VHE; E > 100 GeV) γ-ray emission from 4C +21.35 ...
Aims. Amongst more than fifty blazars detected in very high energy (VHE, E> 100 GeV) γ rays, only th...
Cygnus X-3 is a microquasar consisting of an accreting compact object orbiting around a Wolf-Rayet s...
Very High Energy (VHE) gamma-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
Aims. Amongst more than fifty blazars detected in very high energy (VHE, E> 100 GeV) γ rays, only th...
The bright gamma-ray quasar 4C +55.17 is a distant source (z = 0.896) with a hard spectrum at GeV...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
The discovery of rapidly variable Very High Energy (VHE ; E > 100 GeV) gamma-ray emission from 4C...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and ...
Among more than fifty blazars detected in very high energy (VHE, E>100GeV) gamma-rays, only three be...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
The discovery of Very High Energy (VHE; E > 100 GeV) γ-ray emission from 4C +21.35 (PKS 1222+216) by...
The discovery of rapidly variable Very High Energy ( VHE; E > 100 GeV). - ray emission from 4C...
The discovery of rapidly variable Very High Energy (VHE; E > 100 GeV) γ-ray emission from 4C +21.35 ...
Aims. Amongst more than fifty blazars detected in very high energy (VHE, E> 100 GeV) γ rays, only th...
Cygnus X-3 is a microquasar consisting of an accreting compact object orbiting around a Wolf-Rayet s...
Very High Energy (VHE) gamma-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
Aims. Amongst more than fifty blazars detected in very high energy (VHE, E> 100 GeV) γ rays, only th...
The bright gamma-ray quasar 4C +55.17 is a distant source (z = 0.896) with a hard spectrum at GeV...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
The discovery of rapidly variable Very High Energy (VHE ; E > 100 GeV) gamma-ray emission from 4C...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and ...
Among more than fifty blazars detected in very high energy (VHE, E>100GeV) gamma-rays, only three be...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
The flat-spectrum radio quasar PKS 1441+25 at a redshift of z = 0.940 is detected between 40 and 250...
The discovery of Very High Energy (VHE; E > 100 GeV) γ-ray emission from 4C +21.35 (PKS 1222+216) by...
The discovery of rapidly variable Very High Energy ( VHE; E > 100 GeV). - ray emission from 4C...
The discovery of rapidly variable Very High Energy (VHE; E > 100 GeV) γ-ray emission from 4C +21.35 ...
Aims. Amongst more than fifty blazars detected in very high energy (VHE, E> 100 GeV) γ rays, only th...
Cygnus X-3 is a microquasar consisting of an accreting compact object orbiting around a Wolf-Rayet s...