Query : 2004A&A...425..255J

2004A&A...425..255J - Astronomy and Astrophysics, volume 425, 255-261 (2004/10-1)

Intermittent nulls in PSR B0818-13, and the subpulse-drift alias mode.


Abstract (from CDS):

We show that all long nulls in PSR B0818-13 are trains of rapidly alternating nulls and pulses (each shorter than one pulse period). Sometimes only the nulls coincide with our pulse window, resulting in one of the apparently long nulls seen occasionally. We show these are seen as often as expected if during such a train the probability for nulls is 1.2 times less than for pulses. During nulls, the subpulse drift-speed appears to increase. We assume that the carousel of sparks that possibly underlies the subpulses actually slows down, as it does in similar pulsars like PSR B0809+74, and conclude that the subpulse-drift in this pulsar must be aliased. The carousel must then rotate in 30s or less, making it the fastest found to date.

Abstract Copyright:

Journal keyword(s): stars: neutron - stars: pulsars: general - stars: pulsars: individual: PSR B0818-13

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
1 PSR B0809+74 Psr 08 14 59.500 +74 29 05.70           ~ 396 0
2 PSR B0818-13 Psr 08 20 26.4020 -13 50 56.400           ~ 202 0
3 PSR B0943+10 Psr 09 46 07.31 +09 51 57.3           ~ 326 1

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