Published August 18, 2011 | Version v1
Journal article Metadata-only

The Vela Double Glitch

Creators

  • 1. School of Physics, University of the Witwatersrand, Johannesburg (South Africa)
  • 2. HartRAO, PO Box 443, Krugersdorp, 1740 (South Africa)
  • 3. Johannesburg Planetarium (South Africa)

Description

The Vela pulsar has been monitored almost daily since 1985 using the HartRAO 26 m antenna. During this time ten large glitches have been observed. In 1994 the Vela pulsar experienced two large glitches (Δν/ν = 8.61x10-7 and Δν/ν = 1.99x10-7) separated by only 32 days. The event is accompanied by typical transients in rotation frequency derivative (ν) although all of the long-term offset occurs at the first event and the rapidly-decaying transient is only seen with the second spin-up. We discuss the unique features of these glitches and show that they do not seem to fit in with the widely accepted creep theory of post-glitch recovery.

Additional details

Identifiers

DOI
10.1063/1.3615092;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1357
Journal Issue
1
Journal Page Range
p. 113-116
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
An astrophysical key to unlock the secrets of the Universe
Acronym
Conference on radio pulsars
Dates
10-15 Oct 2010
Place
Chia, Sardinia (Italy)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43083709
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ASTROPHYSICS; DEFORMATION; FREQUENCY MEASUREMENT; PULSARS; RADIO TELESCOPES; RADIOASTRONOMY; ROTATION; SPIN; TRANSIENTS
Descriptors DEC
ANGULAR MOMENTUM; ANTENNAS; ASTRONOMY; COSMIC RADIO SOURCES; ELECTRICAL EQUIPMENT; ELECTRONIC EQUIPMENT; EQUIPMENT; MOTION; PARTICLE PROPERTIES; PHYSICS; RADIO EQUIPMENT; TELESCOPES

Optional Information

Notes
(c) 2011 American Institute of Physics