[ad_1]
Using data from NASA's NuSTAR telescope, astronomers have confirmed that superstar Eta Carinae fired cosmic rays into the Earth. Before that, the origin of some unique X-rays and gamma rays detected on Earth was a mystery to the experts. (19459013) NASA / CXC | JPL-Caltech )
NASA's NuSTAR mission has proven that some of the cosmic rays reaching Earth from space come from superstar Eta Carinae.
Eta Carinae previously identified as the brightest and most mbadive star system within 10,000 light-years from Earth. It has also been found that it speeds up high energy particles. However, it is only until now that scientists were sure that these energies reached the Earth in the form of cosmic rays.
Cosmic rays with energies more powerful than 1 billion electron volts can naturally reach the Earth. However, their electrons, protons and atomic nuclei have deviated from their original trajectory when they collide with magnetic fields. Once they reach the Earth after striking magnetic fields, astronomers find it difficult to know where they came from.
In addition, NASA's Gamma-Ray space telescope had previously detected gamma rays containing more energy than others. gamma rays detected in a similar way. Astronomers have previously observed that these unique gamma rays came from the direction of Eta Carinae.
It is only until this study published in Nature Astronomy on July 2 that scientists are certain that these cosmic rays came from Eta Carinae
Superstar Eta Carinae [19659008] Compared to older versions of space telescopes, the NASA NuSTAR is able to focus on X-rays with much more energy. Since its launch in 2012, it has detected x-rays in excess of 30,000 electronvolts.
Some of these X-rays were even higher than they could come from shockwaves produced by collision winds. Compared with gamma rays previously detected by the Fermi telescope, astronomers have observed that X-rays seem to come from the same source.
To be precise, the high power X-rays detected by NuStar and the gamma rays. detected by Fermi seemed to emanate from a binary orbital period. They also showed a similar energy production pattern.
The researchers in this study explained that the most appropriate explanation is that mysterious X-rays and gamma rays are produced by electrons accelerating from violent shockwaves.
X-rays and gamma rays can only come from a stellar system that can produce a huge amount of energy produced by interacting electrons, a unique property that can only be attributed when it's in the dark. The superstar Eta Carinae
Eta Carinae contains a pair of mbadive stars whose orbits can bring them closer to the Earth every 5.5 years. According to Michael Corcoran, a NASA Goddard scientist, these two stars lead to powerful exits, called "Godstard".
NASA's NuSTAR Space Telescope
The new study team examines new and archival data acquired by NuSTAR between March 2014 and June 2016. They also badyzed weaker X-ray observations. XMM-Newton satellite energy from the European Space Agency
"We have long known that the area around Eta Carinae is the source of energy emission in But until NuSTAR is able to identify the radiation, to show that it comes from the binary and to study its properties in detail, the original was mysterious, "says Fiona Harrison, senior researcher of NuSTAR and professor at Caltech
Features: 30 Gadgets and Gifts for Father's Day 2018 This Dad Will Think of Being Rad
© 2018 Tech Times , All rights reserved Do not reproduce ns permission
[ad_2]
Source link
