The Proper Motion of the Pulsar J1124-5916 in the Galactic Supernova Remnant G292.0+1.8

Abstract

We present the first direct measurement of the proper motion of pulsar J1124-5916 in the young, oxygen-rich supernova remnant G292.0+1.8. Using deep Chandra ACIS-I observations from 2006 and 2016, we measure a positional change of $0{.}^{\prime \prime }21$ $\pm$ $0{.}^{\prime \prime }05$ over the $\sim$ 10 year baseline, or $\sim$ $0{.}^{\prime \prime }02$ yr${}^{-1}$. At a distance of 6.2 $\pm$ 0.9 kpc, this corresponds to a kick velocity in the plane of the sky of $612\pm 152\mathrm{km}{\mathrm{s}}^{-1}$. We compare this direct measurement against the velocity inferred from estimates based on the center of mass of the ejecta. Additionally, we use this new proper motion measurement to compare the motion of the neutron star to the center of expansion of the optically emitting ejecta. We derive an age estimate for the supernova remnant of $\gtrsim$ 2000 years. The high measured kick velocity is in line with recent studies of high proper motion neutron stars in other Galactic supernova remnants, and consistent with a hydrodynamic origin to the neutron star kick.

Accepted for publication in ApJ, 15 pages, 12 figures, 6 tables

References in corpus (13)

• Features of the Acoustic Mechanism of Core-Collapse Supernova Explosions
• Hydrodynamical Neutron Star Kicks in Three Dimensions
• Supernova Fallback as Origin of Neutron Star Spins and Spin-kick Alignment
• Comparing Neutron Star Kicks to Supernova Remnant Asymmetries
• A Half-Megasecond Chandra Observation of the Oxygen-Rich Supernova Remnant G292.0+1.8
• The Outer Shock of the Oxygen-Rich Supernova Remnant G292.0+1.8: Evidence for the Interaction with the Stellar Winds from its Massive Progenitor
• Detailed X-Ray Mapping of the Shocked Ejecta and Circumstellar Medium in the Galactic Core-Collapse Supernova Remnant G292.0+1.8
• The Proper Motion of the Central Compact Object RX J0822-4300 in the Supernova Remnant Puppis A, Revisited
• A kinematic study of central compact objects and their host supernova remnants
• VLT observations of the Central Compact Object in the Vela Jr. supernova remnant
• Proper Motion of the High-Velocity Pulsar in SNR MSH 15-56
• A Grid of Core-Collapse Supernova Remnant Models I: The Effect of Wind-Driven Mass-Loss
• The nature of the infrared counterpart and of the optical nebula associated with the Central Compact Object in Vela Jr.\

Cited by in corpus (4)

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• Updated Proper Motion of the Neutron Star in the Supernova Remnant Cassiopeia A
• Chandra Proper Motions and Milliarcsecond Astrometry of Nineteen Pulsars