Discovery of two new Saturn-Mass exoplanets
An international team of astronomers has discovered two new giant alien worlds rotating distant stars. The newly found planets are estimated to be as huge as Saturn and are orbiting M dwarfs beyond the snow line. The findings were published on 2nd May in an online paper on the arXiv pre-print server. The planets were discovered by researchers working as part of the Optical Gravitational Lensing Experiment (OGLE) group and the Microlensing Observations in Astrophysics (MOA) collaboration.
Recently, OGLE and MOA scientists led by Przemek Mróz of the Warsaw University Observatory in Poland, have discovered planetary irregularities in two faint microlensing events designated OGLE-2013-BLG-0132 and OGLE-2013-BLG-1721. The newly discovered planets received designation OGLE-2013-BLG-0132b and OGLE-2013-BLG-1721b. Both planets likely belong to a group of sub-Jupiter-mass planets orbiting M dwarfs beyond the snow line distance.
According to the research, OGLE-2013-BLG-0132b has a mass of about 0.29 Jupiter masses and orbits its parent star at 3.6 AU. The planet’s host is located about 12,700 light years away and has a mass of approximately 0.54 solar masses. With a mass of about 0.64 Jupiter masses, OGLE-2013-BLG-1721b is circling its host (0.46 solar masses) at 2.6 AU. This planetary system is located some 20,500 light years away from the Earth.