SIMBAD references

2001A&A...368.1055N - Astronomy and Astrophysics, volume 368, 1055-1062 (2001/3-4)

Scintillation measurements of the millisecond pulsar PSR J0030+0451 and pulsar space velocities.

NICASTRO L., NIGRO F., D'AMICO N., LUMIELLA V. and JOHNSTON S.

Abstract (from CDS):

Scintillation observations of the nearby single millisecond pulsar (MSP) PSR J0030+0451 were carried out with the Parkes 64 m radiotelescope at three different epochs in 1999. From analysis of the dynamic spectrum we obtained the amplitude of the electron density power spectrum log<CN2≥~-3.33 and a scintillation velocity Viss≲15km/s. This result shows that the Shklovskii effect on the spin-down rate {dot}(P) is negligible. We also performed a correlation analysis between pulsar proper motions (Vpm) and scintillation velocities (Viss) using updated measurements for a sample of 77 objects, 17 of which are MSPs. The full sample shows a correlation coefficient rs≃80% at an extremely high significance level, while for the MSP sub-sample (excluding 2 outliers) we obtain rs≃90%.

Abstract Copyright:

Journal keyword(s): stars: kinematics - pulsars: individual: PSR J0030+0451 - ISM: general - ISM: kinematics and dynamics - ISM: structure - radio continuum: stars

Simbad objects: 77

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