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The phase of the radio and X-ray pulses of PSR B1937+21
- Source :
-
Nuclear Physics B Proceedings Supplement . Jun2004, Vol. 132 Issue 1-3, p596-599. 4p. - Publication Year :
- 2004
-
Abstract
- We present some results of an RXTE observation on PSR B1937+21, the fastest known millisecond pulsar (P≃1.56 ms). The pulse profile, detected up to ∼20 keV, shows a double peak, with the main component much stronger than the other. The peak phase separation is 0.526±0.002 and the pulsed spectrum over the energy range 2-25 keV is well described by a power law with a photon index equal to 1.14±0.07. We find that the X-ray pulses are closely aligned in phase with the giant pulses observed in the radio band. This result suggest that giant radio pulses and X-ray pulses originate in the same region of the magnetosphere due to a high and fluctuating electron density that occasionally emits coherently in the radio band. The X-ray events, however, do not show any clustering in time indicating that no X-ray flares are produced. [Copyright &y& Elsevier]
- Subjects :
- *X-rays
*RADIO waves
*SPECTRUM analysis
*PHOTONS
Subjects
Details
- Language :
- English
- ISSN :
- 09205632
- Volume :
- 132
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Nuclear Physics B Proceedings Supplement
- Publication Type :
- Periodical
- Accession number :
- 13434706
- Full Text :
- https://doi.org/10.1016/j.nuclphysbps.2004.04.101