Explosive neutron star merger captured for the first time in millimeter light

In a first for radio astronomy, scientists have detected millimeter-wavelength light from a short-duration gamma-ray burst. This artist’s conception shows the merger between a neutron star and another star (seen as a disk, lower left) which caused an explosion resulting in the short-duration gamma-ray burst, GRB 211106A (white jet, middle), and left behind what scientists … Read more

A Black Hole can Tear a Neutron Star Apart in Less Than 2 Seconds

Almost seven years ago (September 14th, 2015), researchers at the Laser Interferometer Gravitational-wave Observatory (LIGO) detected gravitational waves (GWs) for the first time. Their results were shared with the world six months later and earned the discovery team the Noble Prize in Physics the following year. Since then, a total of 90 signals have been … Read more

Modeling the merger of a black hole with a neutron star and the subsequent process in a single simulation

Numerical simulation of a black hole-neutron star merger. The density profile is shown in blue and green, the magnetic-field lines penetrating the black hole are shown in pink. Unbound matter is shown in white its velocity by green arrows. Credit: K. Hayashi (Kyoto University) Using supercomputer calculations, scientists at the Max Planck Institute for Gravitational … Read more

Physicists confront the neutron lifetime puzzle

From left, ORNL’s Matthew Frost and Leah Broussard used a neutron scattering instrument at the Spallation Neutron Source to search for a dark matter twin to the neutron. Credit: Genevieve Martin/ORNL, US Dept. of Energy To solve a long-standing puzzle about how long a neutron can “live” outside an atomic nucleus, physicists entertained a wild … Read more