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We present a 142-ks Chandra observation of the enigmatic combination supernova remnant G310.6-1.6 consisting of a bright pulsar-wind nebula driven by an energetic pulsar, surrounded by a highly circular, very faint shell with a featureless,…

高能天体物理现象 · 物理学 2020-01-08 Stephen P. Reynolds , Kazimierz J. Borkowski

Recent proper motion and parallax measurements for the pulsar PSR B1508+55 indicate a transverse velocity of ~1100 km/s, which exceeds earlier measurements for any neutron star. The spin-down characteristics of PSR B1508+55 are typical for…

天体物理学 · 物理学 2008-11-26 V. V. Gvaramadze , A. Gualandris , S. Portegies Zwart

We report the discovery of a young and energetic pulsar in the Parkes multibeam survey of the Galactic plane. PSR J1016-5857 has a rotation period of 107 ms and period derivative of 8e-14, implying a characteristic age of 21 kyr and…

We present radio observations of a region in the vicinity of the young pulsar PSR B1853+01 in the supernova remnant W44. The pulsar is located at the apex of an extended feature with cometary morphology. We argue on the basis of its…

天体物理学 · 物理学 2009-10-28 D. A. Frail , E. B. Giacani , W. M. Goss , G. Dubner

Context: We investigate the possible theoretical properties of the putative pulsar associated with the pulsar wind nebula IGR J18135-1751/HESS J1813-178 based upon recent gamma-ray observations and archival multi-wavelength observations.…

天体物理学 · 物理学 2009-11-13 A. J. Dean , A. B. Hill

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

We present spatially resolved spectroscopy of the supernova remnant (SNR) G292.0+1.8 with the Chandra X-ray observatory. This SNR contains the 135 ms pulsar, J1124-5916. We apply non-equilibrium ionization (NEI) models to the data. By…

天体物理学 · 物理学 2009-11-07 Marjorie Gonzalez , Samar Safi-Harb

We present and analyse a catalogue of 233 pulsars with proper motion measurements. The sample contains a wide variety of pulsars including recycled objects and those associated with globular clusters or supernova remnants. After taking the…

天体物理学 · 物理学 2011-05-05 G. Hobbs , D. R. Lorimer , A. G. Lyne , M. Kramer

Calvera (1RXS J141256.0+792204) is a pulsar of characteristic age 285 kyr at a high Galactic latitude of b=+37{\deg}, detected only in soft thermal X-rays. We measure a new and precise proper motion for Calvera using Chandra HRC-I…

高能天体物理现象 · 物理学 2024-10-30 Michela Rigoselli , Sandro Mereghetti , Jules P. Halpern , Eric V. Gotthelf , Cees G. Bassa

The magnetic fields of neutron stars have a large range (~3e10 - 1e15 G). There may be a tendency for more highly magnetized neutron stars to come from more massive stellar progenitors, but other factors must also play a role. When combined…

高能天体物理现象 · 物理学 2015-05-20 Roger A. Chevalier

The observed fraction of pulsars with interpulses, their period distribution and the observed pulse width versus pulse period correlation is shown to be inconsistent with a model in which the angle alpha between the magnetic axis and the…

天体物理学 · 物理学 2009-11-13 Patrick Weltevrede , Simon Johnston

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…

From considerations of spin evolution and kinematics in the galactic potential, we argue that the pulsars B1913+16, B1534+12, and B2127+11C may be younger than previously assumed, and we find that a lower bound on the formation and merger…

天体物理学 · 物理学 2009-10-31 Z. Arzoumanian , J. M. Cordes , I. Wasserman

We report the discovery of a radio pulsar with a characteristic age of 7300 years, making it one of the 10 apparently youngest Galactic pulsars known. PSR J1357-6429, with a spin period of P = 166 ms and spin-down luminosity of 3.1e36…

PSR J1813--1749 has peculiarities that make it a very interesting object of study. It is one of the most energetic and the most scattered pulsar known. It is associated with HESS J1813--178, one of the brightest and most compact TeV sources…

高能天体物理现象 · 物理学 2022-01-05 Sergio A. Dzib , Luis F. Rodríguez

Almost 40 years after the discovery of pulsars -- and despite a plethora of secured data on them -- pulsar theory is still beset by a number of fundamental inconsistencies. In this short contribution, I will argue that (i) magnetars do not…

天体物理学 · 物理学 2007-05-23 W. Kundt

We present the serendipitous discovery of 16 ms pulsed X-ray emission from the Crab-like supernova remnant N157B in the Large Magellanic Cloud. This is the fastest spinning pulsar associated with a supernova remnant (SNR). Observations with…

天体物理学 · 物理学 2009-10-30 F. E. Marshall , E. V. Gotthelf , W. Zhang , J. Middleditch , Q. D. Wang

The "Mouse" (PWN G359.23-0.82) is a spectacular bow shock pulsar wind nebula, powered by the radio pulsar J1747-2958. The pulsar and its nebula are presumed to have a high space velocity, but their proper motions have not been directly…

高能天体物理现象 · 物理学 2014-11-20 C. A. Hales , B. M. Gaensler , S. Chatterjee , E. van der Swaluw , F. Camilo

We present the first direct measurement of the proper motion of pulsar J1124-5916 in the young, oxygen-rich supernova remnant G292.0+1.8. Using deep Chandra ACIS-I observations from 2006 and 2016, we measure a positional change of…

高能天体物理现象 · 物理学 2022-06-29 Xi Long , Daniel J. Patnaude , Paul P. Plucinsky , Terrance J. Gaetz

The Monogem ring is a bright, diffuse, 25-degree-diameter supernova remnant easily visible in soft X-ray images of the sky. Projected within the ring is a young radio pulsar, PSR B0656+14. An association between the remnant and pulsar has…

天体物理学 · 物理学 2009-11-10 S. E. Thorsett , R. A. Benjamin , Walter F. Brisken , A. Golden , W. M. Goss