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- W2298656621 abstract "Millisecond pulsar PSR J0218+4232 shows remarkable high-energy properties: very hard pulsed X-ray emission up to ~10 keV and a likely detection of high-energy gamma-rays (> 100 MeV) with a soft spectrum. The relative phasing of the X-ray and gamma-ray profiles, however, was unknown. A recently performed Chandra (0.08-10 keV) observation of PSR J0218+4232 settled the phasing down to 0.2 millisecond, and shows that the X-ray pulses are aligned with the gamma-ray pulses providing supporting evidence for our first detection of high-energy gamma-rays from this source. The preliminary results from a recent RXTE (2-250 keV) observation (27-12-2001 -- 7-01-2002) show significant pulsed emission, in a complex profile, up to ~20 keV. The composite high-energy spectrum of this millisecond pulsar is similar to the canonical spectrum of Unidentified Gamma-ray Sources (UGS), making fast (<3-4 ms) millisecond pulsars with low characteristic ages (<10^8 years) good candidates for an UGS association and challenging targets for INTEGRAL observations." @default.
- W2298656621 created "2016-06-24" @default.
- W2298656621 creator A5064780062 @default.
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- W2298656621 date "2002-06-20" @default.
- W2298656621 modified "2023-09-27" @default.
- W2298656621 title "Chandra and RXTE studies of X-ray/gamma-ray millisecond pulsar PSR J0218+4232: A clue to unidentified gamma-ray sources?" @default.
- W2298656621 hasPublicationYear "2002" @default.
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