Chandra Catches Pulsar in X-ray Speed Trap

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Chandra Catches Pulsar in X-ray Speed Trap

Post by bystander » Thu Jun 16, 2022 1:06 pm

G292.0+1.8: Chandra Catches Pulsar in X-ray Speed Trap
NASA | MSFC | SAO | Chandra X-ray Observatory | 2022 Jun 15
The G292.0+1.8 supernova remnant contains a pulsar moving at over a million miles per hour. This image features data from NASA's Chandra X-ray Observatory (red, orange, yellow, and blue), which was used to make this discovery, as discussed in our latest press release. The X-rays were combined with an optical image from the Digitized Sky Survey, a ground-based survey of the entire sky.

Pulsars are rapidly spinning neutron stars that can form when massive stars run out of fuel, collapse and explode. Sometimes these explosions produce a "kick," which is what sent this pulsar racing through the remains of the supernova explosion. An inset shows a close-up look at this pulsar in X-rays from Chandra.

To make this discovery, the researchers compared Chandra images of G292.0+1.8 taken in 2006 and 2016. A pair of supplemental images show the change in position of the pulsar over the 10-year span. The shift in the source's position is small because the pulsar is about 20,000 light-years from Earth, but it traveled about 120 billion miles over this period. The researchers were able to measure this by combining Chandra's high-resolution images with a careful technique of checking the coordinates of the pulsar and other X-ray sources by using precise positions from the Gaia satellite. ...

The Proper Motion of the Pulsar J1124-5916 in
the Galactic Supernova Remnant G292.0+1.8
~ Xi Long et al
Last edited by bystander on Mon Aug 15, 2022 7:43 pm, edited 1 time in total.
Reason: added ApJ reference
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