SIMBAD references

2003A&A...410L...9C - Astronomy and Astrophysics, volume 410, L9-12 (2003/11-1)

The phase of the radio and X-ray pulses of PSR B1937+21.

CUSUMANO G., HERMSEN W., KRAMER M., KUIPER L., LOEHMER O., MASSARO E., MINEO T., NICASTRO L. and STAPPERS B.W.

Abstract (from CDS):

We present timing and spectral results of PSR B1937+21, the fastest known millisecond pulsar (P≃1.56ms), observed with RXTE. The pulse profile, detected up to ∼20keV, 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 2-25keV 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 results 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.

Abstract Copyright:

Journal keyword(s): stars: neutron - pulsars: individual: PSR B1937+21 - X-rays: stars

Simbad objects: 5

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2021.02.25-04:03:11

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