中文
相关论文

相关论文: Statistics of interpulse radio pulsars - the key t…

200 篇论文

In this paper we have used the data of 1315 pulsars (Guseinov et al. 2002) for statistical analysis and showed the changes in pulsar parameters since the appearance of Taylor et al. (1996) catalog. Here we present the space distribution of…

天体物理学 · 物理学 2009-11-07 O. H. Guseinov , E. Yazgan , S. Ozkan , A. Sezer , S. Tagieva

Using the standard equation for the slowdown of a neutron star, we derive a formula for the braking index via integration rather than the conventional differentiation. The new formula negates the need to measure the second time derivative…

天体物理学 · 物理学 2009-10-31 Simon Johnston , David Galloway

Pulsars are the fast rotating neutron stars with strong magnetic field, that emit over a wide frequency range. In spite of the efforts during 40 years after the discovery of pulsars, the mechanism of their radio emission remains to be…

太阳与恒星天体物理 · 物理学 2015-03-19 V. M. Kontorovich , A. B. Flanchik

We evaluate the result of the recent pioneering numerical simulations in Spitkovsky~2006 on the spindown of an oblique relativistic magnetic dipole rotator. Our discussion is based on our experience from two idealized cases, that of an…

天体物理学 · 物理学 2007-05-23 I. Contopoulos

We investigate the birth and evolution of isolated radio pulsars using a population synthesis method, modeling the birth properties of the pulsars, their time evolution, and their detection in the Parkes and Swinburne Multibeam (MB)…

天体物理学 · 物理学 2007-10-25 C. -A. Faucher-Giguere , V. M. Kaspi

Over the past several years, it has become apparent that some radio pulsars demonstrate significant variability in their single pulse amplitude distributions. The Rotating Radio Transients (RRATs), pulsars discovered through their single,…

太阳与恒星天体物理 · 物理学 2015-03-19 E. F. Keane , M. A. McLaughlin , .

Precision pulsar timing requires optimization against measurement errors and astrophysical variance from the neutron stars themselves and the interstellar medium. We investigate optimization of arrival time precision as a function of radio…

高能天体物理现象 · 物理学 2018-06-28 M. T. Lam , M. A. McLaughlin , J. M. Cordes , S. Chatterjee , T. J. W. Lazio

In the canonical model of a pulsar, rotational energy is transmitted through the surrounding plasma via two electrical circuits, each connecting to the star over a small region known as a "polar cap." For a dipole-magnetized star, the polar…

高能天体物理现象 · 物理学 2018-01-03 Samuel E. Gralla , Alexandru Lupsasca , Alexander Philippov

In this communication we report the existence of a dynamic ``spin-reversal'' transition in an Ising system perturbed by a pulsed external magnetic field. The transition is achieved by tuning the strength ($h_p$) and/or the duration ($\Delta…

凝聚态物理 · 物理学 2015-06-25 A. Misra , B. K. Chakrabarti

Many pulsars are formed with a binary companion from which they can accrete matter. Torque exerted by accreting matter can cause the pulsar spin to increase or decrease, and over long times, an equilibrium spin rate is achieved. Application…

太阳与恒星天体物理 · 物理学 2014-01-03 Wynn C. G. Ho , H. Klus , M. J. Coe , Nils Andersson

We develop a theory for non-planar interaction between two identical type I spatial solitons propagating at opposite, but arbitrary transverse angles in quadratic nonlinear (or so-called chi(2)) bulk media. We predict quantitatively the…

斑图形成与孤子 · 物理学 2007-05-23 Steffen Kjaer Johansen , Ole Bang , Mads Peter Soerensen

Pulsars are famous for their rotational stability. Most of them steadily spin down and display a highly repetitive pulse shape. But some pulsars experience timing irregularities such as nulling, intermittency, mode changing and timing…

高能天体物理现象 · 物理学 2015-09-23 Lev Arzamasskiy , Alexander Philippov , Alexander Tchekhovskoy

Pulsars have long been studied in the electromagnetic spectrum. Their environments are rich in high-energy cosmic-ray electrons and positrons likely enriching the interstellar medium with such particles. In this work we use recent…

高能天体物理现象 · 物理学 2022-01-26 Ilias Cholis , Iason Krommydas

We consider the polarization properties of radiation emitted by relativistic charged particles while moving along the curved magnetic field lines in a pulsar manetosphere. We propose that the radiation emitted by positrons and electrons…

天体物理学 · 物理学 2007-05-23 R. T. Gangadhara

Although pulsars can radiate electromagnetic wave from radio to gamma ray bands, we still have no a united model to understand the multi-band emission. In this paper the effort for a joint model is presented. The inverse Compton scattering…

天体物理学 · 物理学 2007-05-23 G. J. Qiao , K. J. Lee , H. G. Wang , R. X. Xu

Accreting Millisecond X-ray Pulsars like IGR J00291+5934 are important because it is possible to test theories of pulsar formation and evolution. They give also the possibility to constrain gravitational wave emission theories and the…

高能天体物理现象 · 物理学 2015-05-19 Alessandro Patruno

Drifting subpulse patterns in pulsar signals are frequently interpreted in terms of a model in which a rotating ring of sparks on the polar cap gives rise to emission from regions of the magnetsophere connected to the sparks by dipolar…

天体物理学 · 物理学 2009-11-10 R. T. Edwards , B. W. Stappers

The values of the bending delays in the signal of a radio pulsar in a binary with a stellar mass black hole as a companion have been calculated accurately within a full general relativistic framework considering the Schwarzchid spacetime…

广义相对论与量子宇宙学 · 物理学 2023-07-26 Jyotijwal Debnath , Manjari Bagchi , Avishek Basu

We carry out a classification of the glitch amplitudes of radio pulsars using Extreme Deconvolution technique based on the Gaussian Mixture Model, where the observed uncertainties in the glitch amplitudes $\Delta \nu/\nu$ are taken into…

高能天体物理现象 · 物理学 2022-12-22 Swetha Arumugam , Shantanu Desai

Rapidly rotating magnetic neutron stars in eccentric binary systems containing an early type star provide a unique opportunity to investigate the interplay between radio pulsar, stellar wind and accretion phenomena. We summarise the radio…

天体物理学 · 物理学 2007-05-23 S. Campana , L. Stella , S. Mereghetti , M. Colpi
‹ 上一页 1 8 9 10 下一页 ›