On the Multi-frequency Emission Regions of the Mode Switching Pulsar PSR J0614+2229

Zhang Yanrong; Chen Jianling; Wang Hongguang; Huang Xiujian

Astronomical Research and Technology > 2020 > 17(1): 13-20.

Zhang Yanrong, Chen Jianling, Wang Hongguang, Huang Xiujian. On the Multi-frequency Emission Regions of the Mode Switching Pulsar PSR J0614+2229[J]. Astronomical Research and Technology, 2020, 17(1): 13-20.

Citation:

PDF (2019 KB)

On the Multi-frequency Emission Regions of the Mode Switching Pulsar PSR J0614+2229

1. Guangzhou University, Guangzhou 510006, China;
2. Yuncheng University, Yuncheng 044000, China;
3. Central China Normal University, Wuhan 430079, China

More Information

Received Date: April 10, 2019
Revised Date: May 07, 2019
Available Online: November 20, 2023

Graphical Abstract

Abstract

Abstract

The young pulsar PSR J0614+2229 is one of a few known pulsars with phase offset during mode switching. With the polarimetry data at 10cm, 20cm and 50cm archived at Parkes Observatory, we employ the Rotating Vector Model to fit the linear polarization position angle data for the burst and normal modes at each frequency and obtained the phases offsets between the steepest slope-rate points of best-fit curve. Using the relativistic method that is widely used to determine the emission altitude, we firstly calculate the difference between the emission altitudes of the two modes. It is found that the emission altitude of the normal mode is higher than that of the burst mode, and the difference increases with frequency. On the basis of the phase offset between the centers of the averaged pulse windows of the two modes, it is inferred that the emission regions of the two modes should not be symmetric, in the same time, about the meridian plane that contains the rotation and magnetic axes of the pulsar.
- Pulsar,
- Radio emission,
- PSR J0614+2229,
- Mode switch,
- Polarization

FullText(HTML)

References (17)

References

[1]	DAVIES J G, LYNE A G, SEIRADAKIS J H, et al. Pulsar associated with the supernova remnant IC 443[J]. Nature, 1972, 240(5378):229-230.
[2]	FERGUSON D C, BORIAKOFF V. Short time scale integrated pulse shape variations in PSR 0611+22[J]. The Astrophysical Journal, 1980, 239(1):310-315.
[3]	SEYMOUR A D, LORIMER D R, RIDLEY J P. Bursting emission from PSR B0611+22[J]. Monthly Notices of the Royal Astronomical Society, 2014, 439(4):3951-3961.
[4]	RAJWADE K, SEYMOUR A, LORIMER D R, et al. Simultaneous radio and X-ray observations of PSR B0611+22[J]. Monthly Notices of the Royal Astronomical Society, 2016, 462(3):2518-2526.
[5]	GOULD D M, LYNE A G. Multifrequency polarimetry of 300 radio pulsars[J]. Monthly Notices of the Royal Astronomical Society, 1998, 301(1):235-260.
[6]	WEISBERG J M, CORDES J M, LUNDGREN S C, et al. Arecibo 1418 MHZ polarimetry of 98 pulsars:full stokes profiles and morphological classifications[J]. The Astrophysical Journal Supplement Series, 1999, 121(1):171-217.
[7]	RADHAKRISHNAN V, COOKE D J. Magnetic poles and the polarization structure of pulsar radiation[J]. The Astrophysical Letters, 1969, 3:225-229.
[8]	HINATA S. A possible mechanism for the pulsar radio emission[J]. Astrophysics and Space Science, 1977, 51(2):303-318.
[9]	BLASKIEWICZ M, CORDES J M, WASSERMAN I. A relativistic model of pulsar polarization[J]. The Astrophysical Journal, 1991, 370:643-669.
[10]	DYKS J. Altitude-dependent polarization in radio pulsars[J]. Monthly Notices of the Royal Astronomical Society, 2008, 391(2):859-868.
[11]	HIBSCHMAN J A, ARONS J. Polarization sweeps in rotation-powered pulsars[J]. The Astrophysical Journal, 2001, 546(1):382-393.
[12]	HOBBS G, MILLERA D, MANCHESTER R N. The Parkes observatory pulsar data archive[J]. Publications of the Astronomical Society of Australia, 2011, 28(3):202-214.
[13]	HOTAN A W, VAN STRATEN W, MANCHESTER R N. PSRCHIVE and PSRFITS:an open approach to radio pulsar data storage and analysis[J]. Publications of the Astronomical Society of Australia, 2004, 21(3):302-309.
[14]	KHOO J, HOBBS G, MANCHESTER R N, et al. Using the Parkes Pulsar Data Archive[J]. Astronomical Research & Technology——Publications of National Astronomical Observatories of China, 2012, 9(3):229-236.
[15]	徐守喜, 王洪光, 陈建玲,等. 脉冲星辐射区结构研究[J]. 天文学进展, 2007, 25(4):323-337.
[16]	GOLDREICH P, JULIAN W H. Pulsar electrodynamics[J]. The Astrophysical Journal, 1969, 157:869.
[17]	EVERETT J E, WEISBERG J M. Emission beam geometry of selected pulsars derived from average pulse polarization data[J]. The Astrophysical Journal, 2001, 553(1):341-357.