High-energy observations of the millisecond pulsar PSR J0218+4232
Abstract
The very luminous millisecond binary radio pulsar PSRJ0218+4232 has been detected in soft X-rays, at a luminosity of 8.4x10^32^erg/s between 0.1-2.4keV. The EGRET source 2EGJ0220+4228 has a position which is consistent with that of PSRJ0218+4232. Both the X-ray source and the γ-ray source show indications for variations at the pulse period. If the γ-ray source is indeed the radio pulsar, then the energy loss in γ-rays corresponds to about 10% of the spin-down luminosity. The X-ray luminosity of PSRJ0218+4232 is high, but in line with the luminosity of PSRB1937+21 of ~2.3x10^32^erg/s.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- July 1996
- Bibcode:
- 1996A&A...311L...9V
- Keywords:
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- STARS: NEUTRON;
- PULSAR: INDIVIDUAL: PSRJ0218+4232;
- PSRB1937+21;
- GAMMA RAYS: OBSERVATIONS;
- X-RAYS: GENERAL