SIMBAD references

2009MNRAS.400.1439L - Mon. Not. R. Astron. Soc., 400, 1439-1444 (2009/December-2)

Unusual glitch activity in the RRAT J1819-1458: an exhausted magnetar ?

LYNE A.G., McLAUGHLIN M.A., KEANE E.F., KRAMER M., ESPINOZA C.M., STAPPERS B.W., PALLIYAGURU N.T. and MILLER J.

Abstract (from CDS):

We present an analysis of regular timing observations of the high magnetic field Rotating Radio Transient (RRAT) J1819-1458 obtained using the 64-m Parkes and 76-m Lovell radio telescopes over the past 5 years. During this time, the RRAT has suffered two significant glitches with fractional frequency changes of 0.6x10–6 and 0.1x10–6. Glitches of this magnitude are a phenomenon displayed by both radio pulsars and magnetars. However, the behaviour of J1819-1458 following these glitches is quite different to that which follows glitches in other neutron stars, since the glitch activity resulted in a significant long-term net decrease in the slow-down rate. If such glitches occur every 30 years, the spin-down rate, and by inference the magnetic dipole moment, will drop to zero on a time-scale of a few thousand years. There are also significant increases in the rate of pulse detection and in the radio pulse energy immediately following the glitches.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): pulsars: general

Simbad objects: 12

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