SGR 0501+4516 is the most likely candidate in our Milky Way jar for a magnetic sake that was not born in a supernova explosion as predicted at the beginning; The object is so strange that it may provide evidence of the mechanism behind the rapid radio bursts.
“Magnets are neutron stars that are fully composed of neutrons. What makes the magnet unique is its extremist magnetic field,” said Dr. Ashley Cremes, astronomer at the European Space and Technology Research Center.
SGR 0501+4516 was identified with the help of sensitive tools on the NASA spacecraft as well as the ESA gaia spacecraft.
Initially, Magnetar was discovered in 2008 when I monitored the Swift Swift Swift Observatory, an intense flash of gamma rays from the suburbs of the Milky Way.
Since magnets are neutron stars, the natural interpretation of their formation is that they are born in an overdose, when the star explodes and can collapse into a very dense neutron star.
This seems to be the case for SGR 0501+4516, which is located near Supernova residue called HB9.
The separation of magneticism and the center of Fasa’s remains on the sky is only 80 Arcminuts, or a little wider than your pinky finger when displayed at the end of your outstretched arm.
However, a study took a decade with Hubble causes doubt about the birthplace of the magnet.
After the initial notes with the Earth’s telescopes shortly after the discovery of SGR 0501+4516, astronomers used the wonderful Hubble sensitivity and the fixed signal to the discovery of the faint infrared glow of the singer in 2010, 2012 and 2020.
Each of these images was aligned with a specific reference frame of notes from the GAIA spacecraft, which has placed a very accurate 3D map for about two billion stars in the Milky Way.
This method revealed the microscopic movement of the magnet where he passed the sky.
“All this movement that we measure is smaller than one pixel than Hubble’s image,” said Dr. Joe Lean, an astronomer at Warwick University.
“The ability to perform such measurements strongly is a testimony to the long -term stability of Hubble.”
By tracking the position of the magnet, astronomers were able to measure the movement of an object that appears across the sky.
Both SGR 0501+4516 movement showed that magnetism cannot be linked to nearby Supernova remains.
Magnetar tracking has shown thousands of years in the past that there are no other Supernova residue or huge stars groups that can be associated with.
If SGR 0501+4516 is not born in Supernova, Magnetar should be older than 20,000 years, or may be formed in another way.
Magneticism may also be able to form through the process of integrating two low -mass neutron stars or through a process called accumulation collapse.
The collapse caused by accumulation requires a bilateral system for a star with a white dwarf: the essence of a star -like star.
If the white dwarf controls the gas from its companion, it can grow very huge to support itself, which leads to an explosion – or perhaps the creation of a magnetic.
“This scenario usually ignites nuclear reactions, does not explode the white dwarf, and has left nothing behind,” said Dr. Andrew Levan, astronomer at the University of Radbod and the University of Warwick.
“But theoretically, under certain circumstances, the white dwarf can instead to a neutron star. We believe that this may be how SGR 0501+4516 was born.”
SGR 0501+4516 is currently the best magnetic candidate in our galaxy that may have been formed through the merger or collapse caused by accumulation.
Magnets that are formed through the collapse caused by accumulation can explain some mysterious rapid radio bursts, which are short but strong flashes of radio waves.
In particular, this scenario may explain the origin of the rapid radio bursts that emerge from the very ancient stars so that the stars are not born recently enough to explode as Supernovae.
“Magnetic birth rates and training scenarios are among the most urgent questions in high -energy astronomical physics, with effects on many of the strongest temporary events in the universe, such as rays of gamma rays at the Space Institute in Barcelona, Space,” said Dr. Nanda Ray, an astronomical scientist at the Barcelona Space Institute.
the Results It appears in the magazine Astronomy and astronomical physics.
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AA chrime And others. 2025. Influent and healthy movement of the magnet SGR 0501+4516. A & A. 696, A127; Doi: 10.1051/0004-6361/202453479