Observation of the “Inner Composition Explorer of the Neutron Star”NICER) NASA, for the first time, merged X-ray spots millions of temperatures on the surface of a magnetic star, according to a report RT .
George Younes, a researcher at George Washington University and Goddard’s Travel Center, said: outer space “The biggest spot eventually merged with a smaller spot, something we’ve never seen before,” NASA director of Greenbelt, Maryland.
This unique set of notes, published on January 13 in the journal The Astrophysical Journal Lettersin directing scientists to a more complete understanding of the interaction between the crust and the magnetic field of these extreme objects.
A magnetar is a type of isolated neutron star characterized by a strong magnetic field, the fractured core that a massive star leaves behind when it explodes.
By compressing a mass greater than that of the Sun into a sphere regarding 12 miles (20 km) in diameter, the neutron star is made of matter so dense that a teaspoon weighs like a mountain on Earth.
What distinguishes neutron stars is that they have the strongest magnetic fields known, which are a thousand times stronger than a typical neutron star magnet.
The magnetic field represents an enormous store of energy that, when perturbed, can lead to a burst of enhanced X-ray activity that lasts from months to years.
On October 10, 2020, NASA’s Neil Girls Swift Observatory detected such a sudden outburst of a new magnetic star, called SGR 1830-0645 (or acronym SGR 1830), which is located in the constellation Gear. Although the exact distance is not known, astronomers estimate the object is regarding 13,000 light-years away.
According to NASA, the observatory Swift X-ray monitored repetitive pulses that revealed that the body rotates every 10.4 seconds.
Show measurements NICERan X-ray telescope installed aboard the International Space Station, found that the X-ray emission showed three nearby peaks with each rotation, which occurred when three individual surface spots hotter than their surroundings merged in and out of our view.
observing telescopeNICER Magnetic star SGR 1830 Almost daily, from its discovery on October 10 until November 17, 2020, following which the Sun was very close to the field of view for safe observation. During this period, the emission peaks gradually changed, occurring at slightly different times in the magnetar’s rotation.
And NASA explained that the spots form and move as a result of the movement of the crust, just like the movement of tectonic plates on Earth that drives seismic activity.
Astronomers believe that the three moving hot spots likely represent the locations where the coronal rings, which are often seen on the Sun, connect to the surface.
“Understanding this process has been a major challenge for theorists, and now we have been given both the NICER AndSGR 1830 A more direct look at how the crust behaves under extreme stress.”
The team believes that these observations reveal a single active region in which the crust has become partially molten, slowly deforming under magnetic stress. The three moving hot spots likely represent the sites where coronal rings, similar to the bright, glowing arcs of plasma visible on the Sun, contact the surface. The interaction between epitopes and cortical motion leads to drift and fusion behaviour.
Zaven Arzumanian, Head of NICER Goddard Science Center: “Changes in pulse shape, including decreasing numbers of peaks, had previously been seen only in a few rapid observations, which fell apart widely in time, so there was no way to trace their evolution
