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Home / Science / Whirling Pulsar escapes from the supernova area at epic speed

Whirling Pulsar escapes from the supernova area at epic speed



A supernova explosion threw up a super-dense, swirling star core and swept it through space at nearly 4 million km / h (12 million km / h), with a fiery 13-light-year trail in progress.

The researchers traced the star nucleus, called Pulsar with NASA's Fermi-Gamma-Ray Space Telescope and the National Science Foundation's Very Large Array (VLA) astronomical observatory. The Pulsar is located about 6,500 light-years from Earth and was first discovered in 2017 by a Citizenship Project, Einstein @ Home . It moves fast enough to travel from Earth to the Moon in just 6 minutes – five times faster than the average pulsatile momentum and faster than 99 percent of the pulsar velocity documented by the researchers. Scientists described the pulsar in a NASA statement as a cosmic "cannonball".

"Thanks to its narrow, arrow-like tail and random viewpoint, we can trace this pulsar back to its birthplace," says researcher Frank Schinzel at the National Radio Astronomy Observatory in New Mexico, in the Declaration . "Further investigations of this object will help us to understand how these explosions" let "neutron stars" kick "at such a high speed.

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94559007] NASA's Fermi Space Telescope Marks 10 Years of Gamma-Ray Science ” class=”expandable lazy-image lazy-image-loading lazyload optional-image” onerror=”this.parentNode.replaceChild(window.missingImage(),this)” sizes=”auto” data-normal=”https://vanilla.futurecdn.net/space/media/img/missing-image.svg” src=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6-320-80.jpg” srcset=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6-650-80.jpg 650w” data-sizes=”auto” data-original-mos=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6.jpg” data-pin-media=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6.jpg”/>

19659006] The Pulsar J0002 + 6216 strips away from the bubble-like supernova remnant CTB 1. This composite image combines radio, visible light and infrared data.CTB 1, when viewed in the night sky, appears as big as a full moon. ” class=”expandable lazy-image lazy-image-loading lazyload optional-image” onerror=”this.parentNode.replaceChild(window.missingImage(),this)” sizes=”auto” data-normal=”https://vanilla.futurecdn.net/space/media/img/missing-image.svg” src=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6-320-80.jpg” srcset=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6-320-80.jpg 320w, https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6-650-80.jpg 650w” data-sizes=”auto” data-original-mos=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6.jpg” data-pin-media=”https://cdn.mos.cms.futurecdn.net/uYVVPE8qBo3KgiHwTMMRA6.jpg”/>

The Pulsar J0002 + 6216 strips away from the bubble-like supernova remnant CTB 1. This composite image combines radio, visible light and infrared data, and when viewed in the night sky, CTB 1 appears to be the size of a full moon.

(Image: © Composite by Jayanne English, University of Manitoba, using data from NRAO / F. Schinzel et al., DRAO (Canadian Galactic Plane Survey and NASA / IRAS)

Pulsa The J0002 + 6126 was probably thrown out of the system after the supernova of its predecessor star, eventually surpassing the growing shell of gas and dust that was also released in the blast. The long tail of the object, which can be detected in radio wavelengths, comes from shockwaves that move through interstellar gas and dust called the interstellar medium.

The pulsar flashes regularly, with the earth's gamma rays flowing through the earth 8.7 times per second second as it rotates. The research team used its regularity to measure the exact speed and direction of the object.

"The longer the data set is, the more powerful the pulsar timing method," said Matthew Kerr, co-designer of the discovery and researcher at the US Naval Research Laboratory in Washington, said in the statement. "Fermi's beautiful 10-year data has essentially enabled this measurement."

The supernova explosion that originally propelled the pulsar occurred probably about 10,000 years ago; The object is 53 light-years from the epicenter of the explosion. After about 5,000 years, the pulsar shot past the shell of gas and debris, which was slowed down by the interstellar medium. The researchers are not sure how the supernova triggered the pulsar flight. One explanation, officials said in the statement, could be that during the collapse of the star, a dense material leak has formed that has taken long enough to pull the star's core toward the body. NASA's Chandra X-ray Observatory could provide more light throw on the fast output of the pulsar.

The new work was presented at a meeting of the American Astronomical Society in California and was accepted for publication in The Astrophysical Journal Letters (1945).

E-mail Sarah Lewin at slewin@space.com or follow her @SarahExplains . Follow us on Twitter @SpaceTotcom and Facebook .


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