May have been detected by a gravitational wave of a new type

May have been detected by a gravitational wave of a new type


According to rumors reported by New Scientist, scientists noticed subtle distortion of fabric of space, caused by a catastrophic collision of two neutron stars. This means that we may have caught a gravity wave of a new type. Now, optical telescopes, including the Hubble space telescope, directed to the point a possible source of waves: elliptical galaxy millions of light years away.

Gravitational waves are markers of the most violent events in our Universe resulting from the collision of dense objects such as black holes or neutron stars, with great energy. Two experiments — LIGO in the USA and VIRGO in Europe — has set itself the task to detect small changes in the path of laser beams caused by passing gravitational waves.

Currently, LIGO has detected three sources of gravitational waves, all of them are colliding black holes. Two of these Observatory data exchange from November, increasing the sensitivity of the equipment. This cooperation can pay off.

Neutron stars

Last weekend, the astronomer George. Craig Wheeler of the University of Texas at Austin started to talk about a potential new detection LIGO, running wave on Twitter: “New LIGO. Source with an optical counterpart. Let’s go!”.

Under the optical analogue of the he was probably referring to the fact that astronomers can observe the light emitted by a source of gravitational waves. This suggests that the source is a neutron star, because, unlike black holes, they can be seen at visible wavelengths. LIGO researchers have long anticipated this opportunity and has partnered with optical observatories for faster tracking of potential signals prior to the official announcement of the opening.

The representative of the LIGO David shoemaker declined to confirm or deny the gossip, saying only: “Very interesting session observing the O2 runs until August 25. We plan to place a major upgrade to this moment.”

The rumors are centered around NGC 4993, galaxies 130 million light-years away in the constellation Hydra. In her pair of neutron stars whirl in a deadly dance. Although astronomers do not say whether they participate in the optical observations to detect gravitational waves, last night the Hubble space telescope turned their attention to the merger of two neutron stars. Publicly available the this merger was later removed.