Evidence for an offset active nucleus in the Seyfert galaxy NGC3227
THE active nuclei of Seyfert 1 galaxies are characterized by a small (˜0.03 pc) region of intense broad emission lines, indicative of gas moving at extremely...
Evidence for planet engulfment by the star HD82943
Current models of the evolution of the known extrasolar planetary systems need to incorporate orbital migration and/or gravitational interactions among giant...
Evidence of a supernova origin for the black hole in the system GRO J1655 - 40
Stars with masses greater than about ten solar masses are thought to end their lives either in a supernova or in a direct gravitational collapse process, either...
Flares from a candidate Galactic magnetar suggest a missing link to dim isolated neutron stars
Magnetars are young neutron stars with very strong magnetic fields of the order of 1014-1015G. They are detected in our Galaxy either as soft γ-ray repeaters or...
Pairs of asteroids sharing similar heliocentric orbits, but not bound together, were found recently. Backward integrations of their orbits indicated that they...
Forming intracluster gas in a galaxy protocluster at a redshift of 2.16
Galaxy clusters are the most massive gravitationally bound structures in the Universe, comprising thousands of galaxies and pervaded by a diffuse, hot...