An Earth-sized rogue planet discovered in the Milky Way
Our Galaxy may be teeming with rogue planets, gravitationally unbound to any star. An international team of scientists, led by Polish astronomers from the University of Warsaw, has announced the discovery of the smallest Earth-sized free-floating planet found to date.
Virgo and LIGO unveil new and unexpected black hole populations
UW scientists from the Astronomical Observatory are part of Virgo and LIGO that detected an extraordinarily massive merging binary system: two black holes of 66 and 85 solar masses, which generated a final black hole of around 142 solar masses. Two scientific papers on the discovery have been published today on Physical Review Letters and Astrophysical Journal Letters respectively.
Dr. Przemysław Mróz awarded the International Astronomical Union 2019 PhD Prize
Dr. Przemysław Mróz has been awarded the International Astronomical Union PhD prize for outstanding scientific achievements of astronomy PhD students around the world for his dissertation "Astrophysical applications of gravitational microlensing in the Milky Way". The thesis was written under the supervision of Professor Andrzej Udalski from the Astronomical Observatory of the University of Warsaw
The Second Exoplanet in the Proxima Centauri Planetary System
New observations of Proxima Centauri, the nearest star to the Solar System, located at a distance of 4.2 light years, have made it possible to reveal the presence of a candidate low-mass planet orbiting the star at a distance 1.5 times greater than that separating the Earth from the Sun.
Global Gaia campaign reveals secrets of stellar pair
A 500-day global observation campaign spearheaded more than three years ago by ESA’s galaxy-mapping powerhouse Gaia has provided unprecedented insights into the binary system of stars that caused an unusual brightening of an even more distant star.
Two new rogue planets
Theories of planet formation predict the existence of free-floating planets that were ejected from their parent planetary systems and are floating alone through space. Astronomers from the Warsaw University Observatory have found two new rogue worlds. The discovery has been published in the journal “Astronomy & Astrophysics”.
Astronomers discover a new class of X-ray sources
Sun and other stars in the Milky Way emit radiation that can be detected by human eyes. Astronomers, however, know many celestial objects that can radiate their energy in the form of X-rays. An international team of scientists, which includes astronomers from the Astronomical Observatory of UW, reported in the “Nature Astronomy” journal the discovery of a new class of X-ray sources.
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