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We report the discovery of PSR J1847-0130, a radio pulsar with a 6.7-s spin period, in the Parkes multibeam survey of the Galactic plane. The slowdown rate for the pulsar, 1.3x10^{-12} s/s, is high and implies a surface dipole magnetic…

We report the results of 19 years of Arecibo timing for two pulsars in the globular cluster NGC 5904 (M5), PSR B1516+02A (M5A) and PSR B1516+02B (M5B). This has resulted in the measurement of the proper motions of these pulsars and, by…

天体物理学 · 物理学 2009-11-13 Paulo C. C. Freire , Alex Wolszczan , Maureen van den Berg , Jason W. T. Hessels

In this dissertation, we estimate the population of different classes of BNS systems that are visible to gravitational-wave observatories. Given that no ultra-compact BNS systems have been discovered in pulsar radio surveys, we place a 95\%…

高能天体物理现象 · 物理学 2020-08-12 Nihan Pol

The Five-hundred-meter Aperture Spherical Telescope is discovering hundreds of new pulsars, including a slowly spinning compact binary millisecond pulsar (spin period $P_{\rm spin}=14.2$\,ms) which showed radio eclipses and evidence of…

高能天体物理现象 · 物理学 2025-06-02 Devina Misra , Karri I. I. Koljonen , Manuel Linares

We report the discovery of 105-ms X-ray pulsations from the compact central object (CCO) in the supernova remnant Kes 79 using data acquired with the Newton X-Ray Multi-Mirror Mission. Two observations of the pulsar taken 6 days apart yield…

天体物理学 · 物理学 2009-11-10 E. V. Gotthelf , J. P. Halpern , F. D. Seward

We report the discovery with the Parkes radio telescope of a pulsar associated with the ~ 1700 yr-old oxygen-rich composite supernova remnant G292.0+1.8. PSR J1124-5916 has period 135 ms and period derivative 7.4e-13, implying…

天体物理学 · 物理学 2009-11-07 F. Camilo , R. N. Manchester , B. M. Gaensler , D. R. Lorimer , J. Sarkissian

We present the first X-ray observations of three recently discovered millisecond pulsars (MSPs) with interesting characteristics: PSR J0337+1715, PSR J0636+5129, and PSR J0645+5158. PSR J0337+1715 is a fast-spinning, bright, and so-far…

PSR J1910-5959A is a binary pulsar with a helium white dwarf companion located about 6 arcmin from the center of the globular cluster NGC6752. Based on 12 years of observations at the Parkes radio telescope, the relativistic Shapiro delay…

PSR J$1946+3417$ is a millisecond pulsar (MSP) with a spin period $P\simeq3.17\rm~ms$. Harbored in a binary with an orbital period $P_{\rm b}\simeq27$ days, the MSP is accompanied by a white dwarf (WD). The masses of the MSP and the WD were…

高能天体物理现象 · 物理学 2021-11-17 L. Jiang , Na Wang , Wen-Cong Chen , Wei-Min Liu , Chun-wei Leng , Jian-Ping Yuan , Xiang-Li Qian

PSR J1537+1155, also known as PSR B1534+12, is the second discovered double neutron star (DNS) binary. More than 20 years of timing observations of PSR J1537+1155 have offered some of the most precise tests of general relativity (GR) in the…

高能天体物理现象 · 物理学 2021-11-17 Hao Ding , Adam Deller , Emmanuel Fonseca , Ingrid Stairs , Benjamin Stappers , Andrew Lyne

The major programme for observing young, non-recycled pulsars with the Parkes telescope has transitioned from a narrow-band system to an ultra-wideband system capable of observing between 704 and 4032 MHz. We report here on the initial two…

高能天体物理现象 · 物理学 2021-02-10 Simon Johnston , C. Sobey , S. Dai , M. Keith , M. Kerr , R. N. Manchester , L. S. Oswald , A. Parthasarathy , R. M. Shannon , P. Weltevrede

With the possible detection of the fastest spinning nuclear-powered pulsar XTE J1739-285 of frequency 1122 Hz (0.8913 ms), it arouses us to constrain the mass and radius of its central compact object and to imply the stellar matter…

天体物理学 · 物理学 2011-08-04 C. M. Zhang , H. X. Yin , Y. H. Zhao , Y. C. Wei , X. D. Li

We present 3 yr of timing observations for PSR J1453+1902, a 5.79-ms pulsar discovered during a 430-MHz drift-scan survey with the Arecibo telescope. Our observations show that PSR J1453+1902 is solitary and has a proper motion of 8(2)…

天体物理学 · 物理学 2009-06-23 D. R. Lorimer , M. A. McLaughlin , D. J. Champion , I. H. Stairs

As discussed elsewhere in these proceedings, the double pulsar system is a magnificent laboratory for gravitational physics and for studying pulsar magnetospheres. Here we consider the uses of having two clocks in the system in the context…

The radio millisecond pulsar PSR B1620-26 is part of an extraordinary triple star system in the globular cluster M4. The inner companion to the neutron star is thought to be a white dwarf of mass m1 ~0.3 Msun in an orbit of period ~0.5…

天体物理学 · 物理学 2007-05-23 F. A. Rasio

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…

太阳与恒星天体物理 · 物理学 2015-05-13 J. S. Deneva , J. M. Cordes , T. J. W. Lazio

PSR~J2032+4127 is the only one of gamma-ray binary, that exhibits pulsations in gamma-ray. Previous research has indicated that the pulsar and the Be star MT91 213 orbit each other in a highly eccentric orbit with an extremely long period,…

高能天体物理现象 · 物理学 2026-02-04 Yu-Feng Luo , Shan-Shan Weng , Qing-Zhong Liu , Ming-Yu Ge , Han-Long Peng , Shi-Qi Zhou , Shi-Jie Gao , Yu-Jia Zheng , Yan Zhang

I introduce the two classes of pulsar, white-dwarf binaries, and describe for each what we have learned from a specific system, PSR J1012+5307 and PSR B0655+64, respectively, summarising what has been done, presenting new results, and…

天体物理学 · 物理学 2016-11-03 M. H. van Kerkwijk

The Double Pulsar, PSR J$0737$$-$$3039$A/B, is a unique system in which both neutron stars have been detected as radio pulsars. As shown in Ferdman et al., there is no evidence for pulse profile evolution of the A pulsar, and the geometry…

太阳与恒星天体物理 · 物理学 2015-06-19 B. B. P. Perera , C. Kim , M. A. McLaughlin , R. D. Ferdman , M. Kramer , I. H. Stairs , P. C. C. Freire , A. Possenti