X-RAY AND RADIO TIMING OF THE PULSAR IN 3C 58
- Department of Physics, McGill University, Montreal, QC H3A 2T8 (Canada)
- National Radio Astronomy Observatory (NRAO), Charlottesville, VA 22903 (United States)
- Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States)
- University of Manchester, Jodrell Bank Centre for Astrophysics, Manchester M13 9PL (United Kingdom)
We present timing data spanning 6.4 yr for the young and energetic PSR J0205+6449, in the supernova remnant 3C 58. Data were obtained with the Rossi X-ray Timing Explorer, the Jodrell Bank Observatory, and the Robert C. Byrd Green Bank Telescope. We present phase-coherent timing analyses showing timing noise and two spin-up glitches with fractional frequency increases of approx3.4 x 10{sup -7} near MJD 52555 and approx3.8 x 10{sup -6} between MJDs 52777 and 53062. These glitches are unusually large if the pulsar was created in the historical supernova in 1181, as has been suggested. For the X-ray timing, we developed a new unbinned maximum likelihood method for determining pulse arrival times, which performs significantly better than the traditional binned techniques. In addition, we present an X-ray pulse profile analysis of four years of RXTE data showing that the pulsar is detected up to approx40 keV. We also present the first measurement of the phase offset between the radio and X-ray pulse for this source, showing that the radio pulse leads the X-ray pulse by phi = 0.10 +- 0.01 in phase. We compile all known measurements of the phase offsets between radio and X-ray and radio and gamma-ray pulses for X-ray and gamma-ray pulsars. We show that there is no relationship between pulse period and phase offset, supported by our measurement of the phase offset for PSR J0205+6449.
- OSTI ID:
- 21378110
- Journal Information:
- Astrophysical Journal, Vol. 706, Issue 2; Other Information: DOI: 10.1088/0004-637X/706/2/1163; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COSMOLOGY AND ASTRONOMY
GAMMA RADIATION
MAXIMUM-LIKELIHOOD FIT
PULSARS
PULSES
SPIN
STARS
SUPERNOVA REMNANTS
TELESCOPES
X RADIATION
ANGULAR MOMENTUM
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
MATHEMATICAL SOLUTIONS
NUMERICAL SOLUTION
PARTICLE PROPERTIES
RADIATIONS