Direct Measurement of Neutron-Star Recoil in the Oxygen-Rich Supernova Remnant Puppis A

Details Direct Measurement of Neutron-Star Recoil in the Oxygen-Rich Supernova Remnant Puppis A Direct Measurement of Neutron-Star Recoil in the Oxygen-Rich Supernova Remnant Puppis A

2006-08-09

arxiv.org/abs/astro-ph/0608205v2

Astronomy and Astrophysics

Astrophysics

Scientific paper

10.1086/522101

A sequence of three Chandra X-ray Observatory High Resolution Camera images taken over a span of five years reveals arc-second-scale displacement of RX J0822-4300, the stellar remnant (presumably a neutron star) near the center of the Puppis A supernova remnant. We measure its proper motion to be 0.165+/-0.025 arcsec/yr toward the west-southwest. At a distance of 2 kpc, this corresponds to a transverse space velocity of ~1600 km/s. The space velocity is consistent with the explosion center inferred from proper motions of the oxygen-rich optical filaments, and confirms the idea that Puppis A resulted from an asymmetric explosion accompanied by a kick that imparted roughly 3*10^49 ergs of kinetic energy (some 3 percent of the kinetic energy for a typical supernova) to the stellar remnant. We discuss constraints on core-collapse supernova models that have been proposed to explain neutron star kick velocities.

Affiliated with

Also associated with

No associations

Rating

Direct Measurement of Neutron-Star Recoil in the Oxygen-Rich Supernova Remnant Puppis A does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Direct Measurement of Neutron-Star Recoil in the Oxygen-Rich Supernova Remnant Puppis A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct Measurement of Neutron-Star Recoil in the Oxygen-Rich Supernova Remnant Puppis A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-248402