Telescop H.E.S.S. II has been inaugurated on July 26 2012. Built in Namibia telescope is deditated … more H.E.S.S. II First Light»
Synchrotron radiation from relativistic jets in active galactic nuclei is linearly polarized. It is evidence … more Polarization of synchrotron emission from relativistic reconfinement shocks with ordered magnetic fields»
Low mass stars (less massive then the Sun) of spectral type K and M are the … more Orbital and physical parameters of eclipsing binaries from the ASAS catalogue - IV. A 0.61 + 0.45 M_sun binary in a multiple system »
Penrose suggested in 1969 a possibility of extracting the rotational energy of a black hole … more Collisional Penrose process near the horizon of extreme Kerr black holes»
In November 2011, the Copernicus Astronomical Center satellite ground station had begun to operate. It … more The satellite ground station»
The observations of the Galactic Plane carried out with the H.E.S.S. telescope have revealed the high … more A newly discovered VHE gamma-ray PWN candidate around PSR J1459-60»
In 1676 Roemer observed that the apparent moment of Jovian moons' eclipses change depending on the … more Light Time Effect in eclipsing binary stars' light curves»
Animation presents simulation of an atmospheric shower as seen by the camera of a small … more CTA Telescope Simulation»
Janusz Kaluzny, Agata Rozanska, Michał Rozyczka, Wojtek Krzeminski and Ian Thompson demonstrated that the brightest … more A second neutron star in M4? »
Odele Straub, Frederic H. Vincent, Marek A. Abramowicz, Eric Gourgoulhon, Thibaut Paumard calculate the “observed … more Modelling the black hole silhouette in Sgr A* with ion tori »