An image provided by the Max Planck Institute shows a simulation of the black hole merger GW190521, which resulted in a chirp heard 7 billion years later by the LIGO and Virgo antennas. (N. Fischer, H. Pfeiffer, A. Buonanno/Max Planck Institute for Gravitational Physics; Simulating eXtreme Spacetimes Collaboration via The […]
neutron star
159 posts
“This is the first and only firm/secure mass measurement of an intermediate mass black hole at the time of its birth,” Vicky Kalogera, an astrophysicist at Northwestern University, wrote in an email. “Now we know reliably at least one way” these objects can form, “through the merger of other black […]
NASA’s Hubble Space Telescope captures a stunning image of powerful blast wave from a dying star 2,400 light-years from Earth NASA shared the image of the supernova blast wave remnant taken by Hubble What is seen in the image is the very outer edge of a giant supernova blast wave […]
A mysterious radio burst coming from the same spot in deep space on a regular cycle has returned ‘right on schedule’, according to astronomers. In June, University of Manchester researchers confirmed a Fast Radio Burst called FRB 121102 wasn’t just repeating but was doing so on a 157 day cycle. […]
Instead, researchers speculate FRB 121102 could originate in a binary star system with an orbital period of hundreds of days. X-ray binaries – a duo of stars where a neutron star or black hole is siphoning from matter from its companion – can release large quantities of energy in the […]
In an email, Edward Guinan of Villanova University, who has been tracking Betelgeuse, called the new Hubble data “fantastic,” and said Dr. Dupree’s theory was “a good working hypothesis.” He added: “But I don’t entirely agree that the ‘Mystery’ is now solved.” He noted that alternative explanations could explain the […]
According to astronomers, there are three possible fates for a star that has run out of fuel and died. It can end up as a hot dense cinder called a white dwarf, as an even hotter and denser neutron star or as a black hole, depending on its initial mass […]
The source of a mysterious ‘fast radio burst’ in space has been traced back to a dead star in the middle of the Milky Way. Fast radio bursts, or FRBs, are radio emissions that appear temporarily and randomly from space, ranging from a fraction of a millisecond to a few […]