A bounty of potential gravitational wave events hints at exciting possibilities0
- From Around the Web, Space
- August 5, 2021
Most are probably false alarms, but some could be spacetime ripples that are extra hard to spot
Most are probably false alarms, but some could be spacetime ripples that are extra hard to spot
ESO’s fleet of telescopes in Chile have detected the first visible counterpart to a gravitational wave source. These historic observations suggest that this unique object is the result of the merger of two neutron stars. The cataclysmic aftermaths of this kind of merger — long-predicted events called kilonovae — disperse heavy elements such as gold and platinum throughout the Universe. This discovery, published in several papers in the journal Nature and elsewhere, also provides the strongest evidence yet that short-duration gamma-ray bursts are caused by mergers of neutron stars.
An elusive source of ripples in spacetime has finally been found
The “area law” says that a black hole’s surface area cannot decrease over time
On 21 May 2019, from a distance of 7 billion light-years away, our gravitational wave detectors were rocked by the most massive collision yet. From analysis of the signal, astronomers concluded that the detection was the result of two black holes smashing together, weighing in at 66 and 85 times the mass of the Sun respectively.
Gravitational-wave scientists have unveiled their latest catalog of events, revealing a surprising number of massive black holes.
The LIGO Scientific Collaboration and Virgo Collaboration released a catalog of results from the first half of its third observing run (O3a), and scientists have detected more than three times as many gravitational waves than the first two runs combined.
A binary black hole merger likely produced gravitational waves equal to the energy of eight suns
Spacetime ripples reveal the most massive and most distant black hole collision yet
Hypothetical tunnels in spacetime could show up in LIGO and Virgo data