By studying the signal GW170817, as a result of the fusion of two neutron stars, among others, in one kilonova, the astronomers point to the singularity of this phenomenon, which is likely to provide flux clues of the remaining X-rays. About the nature of matter caused by the fusion of these two massive stars.
Detected August 17, 2017 Is a signal that causes direct attention. Described as oscillations in the curve Gravitational waves propagating from one source were predicted by Albert As early as 1916, but in September 2015 it took almost a hundred years for the first observation of gravitational waves to be made.NGC 4993 by Tools And (Designed to detect two interferometers ),
A unique signal
As stated in it . But its specialty is to find it Related to: This is the first time an astronomical phenomenon has been detected in the form of gravitational waves, as well as light. In fact, detected by gamma-ray burst (GRB170817A) associated with GW170817 Within two seconds of the onset of the gravitational wave signal.This signal will continue to be issued Between the two
Since then, nearly 70 observatories have been involved in monitoring the event, either on the ground or in space. American radio telescopes And VLBA, for example, was able to observe the waves Residues associated with GW170817 confirm the view of the integration of the two .
A Kilonova associated with the event
Detected almost 11 hours after observing the gravitational waves, the AT 2017gfo event was described as one. (Can be defined as a Underlight). Due to its spatial-temporal proximity to GW170817, this Kilonova is associated with the same neutron star link. This phenomenon is accompanied by a jet of electrified particles, moving at one o’clock Near it And a production X-rays, measured by observation From NASA. According to a team of American astrophysicists, the study of these X-rays is important to identify the material that results from the fusion of these two neutron stars.
Shortly after they were detected, the emissionsMade by Jet As the jet speed of the object decreases, it will decrease slightly. But since 2020, this decline Leading to a relatively constant emission of X-rays and being stopped. As stated in it This implies the detection of an additional object different from the charged particle jet: another source of X-rays is needed to interpret these observations.
Backlight … or black hole?
, This new source of X-rays may come from the shock created by the rapid expansion of debris resulting from the connection between the two stars. The shock heats up the surrounding objects, thus emitting X-rays – a phenomenon that is then associated with the residual luminosity of the Kilonova.
To find the end of the story, see The X-rays and radio waves will continue their observations about GW170817: Emissions of X-rays and radio waves are expected to increase in the next few months if residual luminosity from Kilonova occurs. On the other hand, if the emission of X-rays decreases and the emission of radio waves stops, scientists will lean towards the scene of a formation. (This would be the least detectable!).