English
Related papers

Related papers: Polarization and the Age of Pulsars

200 papers

We report on the discovery of PSR J1141-6545, a radio pulsar in an eccentric, relativistic 5-hr binary orbit. The pulsar shows no evidence for being recycled, having pulse period P = 394 ms, characteristic age tau_c = 1.4 x 10^6 yr, and…

The properties of the young pulsars and their relations to the supernova remnants (SNRs) have been the interesting topics. At present, 383 SNRs in the Milky Way galaxy have been published, which are associated with 64 radio pulsars and 46…

Recently, Parthsarathy et al. analysed long-term timing observations of 85 young radio pulsars. They found that 11 objects have braking indices ranging $\sim 10-100$, far from the classical value $n=3$. They also noted a mild correlation…

High Energy Astrophysical Phenomena · Physics 2020-10-14 A. P. Igoshev , S. B. Popov

We have observed 79 supernova remnants (SNRs) with the Urumqi 25m telescope at 6cm during the Sino-German 6cm polarization survey of the Galactic plane. We measured flux densities of SNRs at 6cm, some of which are the first ever measured or…

Astrophysics of Galaxies · Physics 2014-06-03 J. L. Han , X. Y. Gao , X. H. Sun , W. Reich , L. Xiao , P. Reich , J. W. Xu , W. B. Shi , E. Fuerst , R. Wielebinski

Since their discovery 30 years ago, pulsars have been understood to be neutron stars (NSs) born rotating rapidly (~ 10-100 ms). These neutron stars are thought to be created in supernova explosions involving massive stars, which give rise…

Astrophysics · Physics 2011-09-07 E. V. Gotthelf , G. Vasisht , M. Boylan-Kolchin , K. Torii

A high-frequency survey of the Galactic plane for radio pulsars is in progress, using the multibeam receiver on the 64-m Parkes radiotelescope. We describe the survey motivations, the observing plan and the inital results. The survey is…

Pulsar's position, proper motion and parallax are important parameters in timing equations. It is a really challenging work to fit astrometric parameters accurately through pulsar timing, especially for pulsars that show irregular timing…

High Energy Astrophysical Phenomena · Physics 2020-07-08 Jie Liu , Zhen Yan , Zhi-Qiang Shen , Zhi-Peng Huang , Ru-Shuang Zhao , Ya-Jun Wu , Jian-Ping Yuan , Xin-Ji Wu

High-magnetic-field radio pulsars are important transition objects for understanding the connection between magnetars and conventional radio pulsars. We present a detailed study of the young radio pulsar J1119-6127, which has a…

High Energy Astrophysical Phenomena · Physics 2015-06-12 C. -Y. Ng , V. M. Kaspi , W. C. G. Ho , P. Weltevrede , S. Bogdanov , R. Shannon , M. E. Gonzalez

The observed population of young radio pulsars has grown substantially in recent years due to a combination of large-scale surveys and deep targeted searches. Many of the pulsars are associated with supernova remnants and/or unidentified…

Astrophysics · Physics 2007-05-23 D. R. Lorimer

We have observed 123 pulsars with periods longer than 0.1 seconds in the Meterwavelength Single-pulse Polarimetric Emission Survey. In this work a detailed study of polarization behaviour of these pulsars have been carried out. We were able…

High Energy Astrophysical Phenomena · Physics 2023-08-02 Dipanjan Mitra , George I. Melikidze , Rahul Basu

In this paper we compare the characteristics of pulsars with a high spin-down energy loss rate (Edot) against those with a low Edot. We show that the differences in the total intensity pulse morphology between the two classes are in general…

Astrophysics · Physics 2009-11-13 Patrick Weltevrede , Simon Johnston

The Parkes multibeam pulsar survey has unlocked vast areas of the Galactic plane which were previously invisible to earlier low-frequency and less-sensitive surveys. The survey has discovered more than 600 new pulsars so far, including many…

We report on Very Large Array observations in the direction of the recently-discovered slow X-ray pulsar AX J1845-0258. In the resulting images, we find a 5-arcmin shell of radio emission; the shell is linearly polarized with a non-thermal…

Astrophysics · Physics 2009-10-31 B. M. Gaensler , E. V. Gotthelf , G. Vasisht

We present the UV spectroscopy and timing of three nearby pulsars (Vela, B0656+14 and Geminga) recently observed with the Space Telescope Imaging Spectrograph. We also review the optical and X-ray properties of these pulsars and establish…

Astrophysics · Physics 2008-11-26 O. Kargaltsev , G. G. Pavlov

We present a method by using the phase characteristics of radio observation data for pulsar search and candidate identification. The phase characteristics are relations between the pulsar signal and the phase correction in the…

Instrumentation and Methods for Astrophysics · Physics 2023-01-04 Bo Peng , Qian-Chen Hu , Qiang Li , Lei Qian , Xiao-Bo Dong , Shi-Lin Peng , Ze-Lin Wang

We have used the Effelsberg 100-m radio telescope to conduct a 1400-MHz ($\lambda$ 21-cm) search for young and rapidly rotating radio pulsars along a 2 deg$^2$ strip of the northern Galactic plane defined by $28^{\circ} \leq l \leq…

Astrophysics · Physics 2007-05-23 D. R. Lorimer , M. Kramer , P. Mueller , N. Wex , A. Jessner , C. Lange , R. Wielebinski

We report on five binary pulsars discovered in the Parkes multibeam Galactic plane survey. All of the pulsars are old, with characteristic ages 1-11 Gyr, and have relatively small inferred magnetic fields, 5-90e8 G. The orbital periods…

The bright radio pulsar B1727$-$47 with a characteristic age of 80 kyr is among the first pulsars discovered 50 yr ago. Using its regular timing observations and interferometric positions at three epochs, we measured, for the first time,…

High Energy Astrophysical Phenomena · Physics 2019-05-30 Peter Shternin , Aida Kirichenko , Dmitry Zyuzin , Meng Yu , Andrey Danilenko , Maxim Voronkov , Yuriy Shibanov

We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at…

We report the discovery of three pulsars whose large dispersion measures and angular proximity to \sgr indicate the existence of a Galactic center population of neutron stars. The relatively long periods (0.98 to 1.48 s) most likely reflect…

Solar and Stellar Astrophysics · Physics 2015-05-13 J. S. Deneva , J. M. Cordes , T. J. W. Lazio