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相关论文: Radio Polarimetry Results for Young Southern Pulsa…

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We report on radio polarimetry observations for nine southern pulsars. Six of the nine in the sample are young, with characteristic ages under 100 kyr and high spin-down luminosities. All six show a significant degree of linear…

天体物理学 · 物理学 2008-11-26 F. Crawford , R. N. Manchester , V. M. Kaspi

Mean pulse profiles and polarization properties are presented for nine southern pulsars. The observations were made using the Parkes radio telescope at frequencies near 1330 MHz; three of the nine pulsars were also observed at 660 MHz. A…

天体物理学 · 物理学 2009-11-10 R N Manchester , J L Han

We present polarization profiles at 1.4 and 3.1 GHz for 14 young pulsars with characteristic ages less than 75 kyr. Careful calibration ensures that the absolute position angle of the linearly polarized radiation at the pulsar is obtained.…

天体物理学 · 物理学 2009-11-11 Simon Johnston , Joel M. Weisberg

We have investigated the radio polarization properties of PSR J1119-6127, a recently discovered young radio pulsar with a large magnetic field. Using pulsar-gated radio imaging data taken at a center frequency of 2496 MHz with the Australia…

天体物理学 · 物理学 2009-11-07 Fronefield Crawford , Nathan C. Keim

Using polarimetric radio profiles of 84 pulsars at a wavelength of 6 cm, we present a correlation between the polarization and characteristic age of pulsars. Considering the large error connected with the value of the characteristic age, we…

天体物理学 · 物理学 2007-05-23 Alexis von Hoensbroech

We report on polarimetric observations of 100 pulsars centered on 774 MHz, made using the Green Bank Telescope, presenting their polarization profiles and polarized flux densities and comparing them with previous observations when possible.…

太阳与恒星天体物理 · 物理学 2009-03-25 J. L. Han , P. B. Demorest , W. van Straten , A. G. Lyne

We report on the X-ray properties of four rotation-powered pulsars with characteristic ages in the range 0.3-5 Myr, derived from the analysis of XMM-Newton archival observations. We found convincing evidence of thermal emission only in the…

高能天体物理现象 · 物理学 2018-07-18 Michela Rigoselli , Sandro Mereghetti

We present a polarimetric analysis of 49 long-period pulsars discovered as part of the High Time Resolution Universe (HTRU) southern survey. The sources exhibit the typical characteristics of "old" pulsars, with low fractional linear and…

We present polarisation profiles for 48 southern pulsars observed with the new 10-cm receiver at the Parkes telescope. We have exploited the low system temperature and high bandwidth of the receiver to obtain profiles which have good signal…

天体物理学 · 物理学 2009-11-10 A. Karastergiou , S. Johnston , R. N. Manchester

We present polarization observations of the radio emitting magnetar AXP J1810-197. Using simultaneous multi-frequency observations performed at 1.4, 4.9 and 8.4 GHz, we obtained polarization information for single pulses and the average…

天体物理学 · 物理学 2008-11-26 M. Kramer , B. W. Stappers , A. Jessner , A. G. Lyne , C. A. Jordan

We present polarization data for 32 mainly southern pulsars at 8.4 GHz. The observations show that the polarization fraction is low in most pulsars at this frequency except for the young, energetic pulsars which continue to show…

天体物理学 · 物理学 2016-08-16 Simon Johnston , Aris Karastergiou , Kyle Willett

The study of high-magnetic-field pulsars is important for examining the relationships between radio pulsars, magnetars, and X-ray-isolated neutron stars (XINSs). Here we report on X-ray observations of three such high-magnetic-field radio…

We present strong observational evidence for a relationship between the direction of a pulsar's motion and its rotation axis. We show carefully calibrated polarization data for 25 pulsars, 20 of which display linearly polarized emission…

天体物理学 · 物理学 2009-11-13 Simon Johnston , G. Hobbs , S. Vigeland , M. Kramer , J. M. Weisberg , A. G. Lyne

We present polarisation observations of five pulsars whose profiles exhibit two distinct emission regions separated by close to 180 degrees of longitude. We fitted the position angle of the linear polarisation using the rotating vector…

太阳与恒星天体物理 · 物理学 2015-05-14 M. J. Keith , S. Johnston , M. Kramer , P. Weltevrede

Using pulsewidth data for 872 isolated radio pulsars we test the hypothesis that pulsars evolve through a progressive narrowing of the emission cone combined with progressive alignment of the spin and magnetic axes. The new data provide…

高能天体物理现象 · 物理学 2015-05-14 Matthew D. T. Young , Lee S. Chan , Ron R. Burman , David G. Blair

In this paper we study a set of twelve pulsars that previously had not been characterized. Our timing shows that eleven of them are "normal" isolated pulsars, with rotation periods between 0.22 and 2.65 s, characteristic ages between 0.25…

高能天体物理现象 · 物理学 2017-12-27 Casey Brinkman , Paulo Freire , Joanna Rankin , Kevin Stovall

We report on high-speed optical photometry of the radio positions of two young rotation-powered pulsars. No pulsations were detected from the optical counterpart proposed by Caraveo et al. (1994) for PSR B1509-58, with a 2 sigma upper limit…

天体物理学 · 物理学 2009-10-30 Deepto Chakrabarty , Victoria M. Kaspi

We report the discovery and follow-up timing observations of the 63 ms radio pulsar, PSR J1105-6107. The pulsar is young, having a characteristic age of only 63 kyr and, from its dispersion measure, is estimated to be at a distance of ~7…

天体物理学 · 物理学 2009-10-30 V. M. Kaspi , M. Bailes , R. N. Manchester , B. W. Stappers , J. S. Sandhu , J. Navarro , N. D'Amico

We have extensively searched for periodic signals in the area of the soft gamma-ray repeater SGR 1900+14, at 430 and 1410 MHz with the Arecibo telescope. Our observations did not reveal the 5.16-s periodicity reported for the magnetar down…

天体物理学 · 物理学 2007-05-23 K. Xilouris , D. R. Lorimer

We observed the nearby 100$\%$-duty-cycle radio pulsar B0950+08 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We obtained the polarization profile for its entire rotation, which enabled us to investigate its…

高能天体物理现象 · 物理学 2024-10-23 Zhengli Wang , Jiguang Lu , Jinchen Jiang , Shunshun Cao , Kejia Lee , Enwei Liang , Lunhua Shang , Renxin Xu , Weiwei Zhu
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