The Active Galactic Nucleus 1RXS J101015.9−311909
March 2012 Image of the host galaxy of the X-ray source 1RXS J101015.9−311909, from the 2MASS sky survey (Jarrett et al. 2000). Active galactic nuclei (AGN) with high X-ray and radio emission represent promising…
An extended source of TeV gamma rays towards the magnetar SGR1806-20
February 2012 The location of the magnetar SGR 1806-20 in the constellation Sagittarius, at a distance of about 10 kpc (with large uncertainty). From Wikipedia. SGR 1806-20 is a magnetar, a neutron star with…
The “serendipitous” discovery of the blazar 1ES 1312−423
January 2012 Verv high energy gamma ray sources discovered by H.E.S.S., as shown by TeVCat. The yellow circle indicates the two nearby active galactic nuclei Centaurus A and 1ES 1312−423, the colored area shows…