X-Ray Observations of the New Pulsar-Supernova Remnant System PSR J1119-6127 and Supernova Remnant G292.2-0.5
Abstract
PSR J1119-6127 is a recently discovered 1600-yr-old radio pulsar that has a very high inferred surface dipolar magnetic field. We present a detailed analysis of a pointed ASCA observation and archival ROSAT data of PSR J1119-6127 and its surroundings. Both data sets reveal extended emission coincident with the newly discovered radio supernova remnant G292.2-0.5, which is reported in a companion paper by Crawford et al. A hard point source, offset ~1.5‧ from the position of the radio pulsar, is seen with the ASCA Gas Imaging Spectrometer (GIS). No pulsations are detected at the radio period with a pulsed fraction upper limit of 61% (95% confidence). The limited statistics prevent a detailed spectral analysis, although a power-law model with photon index Γ~1-2 describes the data well. Both the spectral model and derived X-ray luminosity are consistent with those measured for other young radio pulsars, although the spatial offset renders an identification of the source as the X-ray counterpart of the pulsar uncertain.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 2001
- DOI:
- 10.1086/321340
- arXiv:
- arXiv:astro-ph/0102084
- Bibcode:
- 2001ApJ...554..161P
- Keywords:
-
- ISM: individual (G292.2-0.5;
- AX J1119.1-6128.5);
- pulsars: individual (J1119-6127);
- Stars: Neutron;
- ISM: Supernova Remnants;
- X-Rays: Stars;
- Astrophysics
- E-Print:
- Accepted by ApJ