2006A&A...460L..31R


Query : 2006A&A...460L..31R

2006A&A...460L..31R - Astronomy and Astrophysics, volume 460, L31-34 (2006/12-3)

Mimicking neutron star precession by polar cap current-pattern drifting.

RUDERMAN M. and GIL J.

Abstract (from CDS):

We propose a model for rotating current patterns within radiopulsar polar cap accelerators which has observational consequences that mimic those which have been attributed to neutron star precession. The model is a simple extension of a commonly used one for the origin of the ``drifting subpulses'' often observed within the pulse envelope of radiopulsars. The new model's current pattern rotation period (with respect to the neutron star) is estimated to be of order a year. Associated with that rotation are small oscillations in spin-down torque, pulse arrival time, and radiobeam direction with this same period. These have estimated magnitudes which support a possible reinterpretation of precession ``observations'' which could resolve the problem of obtaining the required precession parameters with canonical neutron star models.

Abstract Copyright:

Journal keyword(s): pulsars: general - stars: neutron

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5028 0
2 M 1 SNR 05 34 32 +22 00.8           ~ 5904 1
3 RX J0720.4-3125 N* 07 20 24.961 -31 25 50.21   26.1   27.0   ~ 291 0
4 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 313 1
5 PSR B1557-50 Psr 16 00 53.0150 -50 44 21.300           ~ 101 0
6 PSR B1642-03 Psr 16 45 02.0330 -03 17 57.200           ~ 335 0
7 PSR B1828-10 Psr 18 30 47.566 -10 59 27.90           ~ 149 1
8 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 720 0

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2022.05.27-05:25:40

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