Tag Archives: Astrophysics

A ghostly object orbiting the Milky Way has left astronomers questioning its composition: Is it a dark-matter-dominated dwarf galaxy or a star cluster bound by a hidden swarm of black holes? Ursa Major III/Unions 1 (UMa3/U1), the faintest known satellite of our galaxy, orbits the Milky Way at a distance of more than 30,000 light-years. It is a compact stellar …

A team of scientists led by the NSF’s Green Bank Observatory (NSF GBO) recently identified an incredibly rare object known as a Long Period Radio Transient (LPT), designated CHIME J1634+44. These objects are similar to Rotating Radio Transients (RRTs), which are sources of short radio pulses believed to be caused by pulsating neutron stars (pulsars). The difference with LPTs is …