Open AccessUnusual glitch behaviours of two young pulsars
Author(s) -
Zou W. Z.,
Wang N.,
Wang H. X.,
Manchester R. N.,
Wu X. J.,
Zhang J.
Publication year - 2004
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2004.08241.x
Subject(s) - glitch , physics , pulsar , astrophysics , sign (mathematics) , millisecond pulsar , astronomy , optics , mathematical analysis , mathematics , detector
In this paper we report unusual glitches in two young pulsars, PSR J1825–0935 (B1822–09) and PSR J1835–1106. For PSR J1825–0935, a slow glitch characterized by a temporary decrease in the slow‐down rate occurred between 2000 December 31 and 2001 December 6. This event resulted in a permanent increase in frequency with fractional size Δν/ν∼ 31.2(2) × 10 −9 ; however, little effect remained in the slow‐down rate. The glitch in PSR J1835–1106 occurred abruptly in 2001 November (MJD 52 220 ± 3) with Δν/ν∼ 14.6(4) × 10 −9 and little or no change in the slow‐down rate. A significant change in apparently occurred at the glitch with having opposite sign for the pre‐ and post‐glitch data.