An article published in the journal “Physical Review Letters” describes a research on Sagittarius A*, the supermassive black hole at the center of the Milky Way. A team of scientists from the University of Princeton and the US Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) developed a new method to create a model of the accretion disk which feeds Sagittarius A*.
An article published in the journal “Nature Astronomy” describes a research about ASASSN-15lh, which had been classified as a superluminous supernova after it was discovered in 2015. An international team led by Giorgos Leloudas of the Weizmann Institute of Science, Israel, and the Dark Cosmology Centre, Denmark, examined the observations made with various telescopes and concluded that it was actually a star destroyed by a supermassive black hole.
An article published in the “Astrophysical Journal” describes the discovery of the remnants of a galaxy of which only a small core remained after passing through a larger galaxy. A team of astronomers used the VLBA radio telescope to find this unique object cataloged as B3 1715+425 with a diameter that is now only 3,000 light-years and a supermassive black hole at its center.
An article to be published in “The Astrophysical Journal” describes an investigation into the glowing gas clouds around distant quasars. An international team of astronomers led by a group at the ETH (Swiss Federal Institute of Technology) in Zurich, Switzerland, used the MUSE instrument mounted on ESO’s Very Large Telescope (VLT) to look at very distant galaxies that are active, of the type called quasar, and discovered that the gas halos that surround them are more common than expected.
An article published in “The Astrophysical Journal” describes a research about the Milky Way that offers a solution to the problem of the missing mass. A team of scientists led by Fabrizio Nicastro, a research associate at the Harvard-Smithsonian Center for Astrophysics (CfA) and astrophysicist at the Italian National Institute of Astrophysics (INAF), used ESA’s XMM-Newton space telescope to discover a kind of gaseous fog that absorbs emissions from distant sources. The existence of such a bubble indicates that some millions of years ago the Milky Way was a quasar.