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相关论文: Improved timing formula for the PSR B1257+12 plane…

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We present measurements of the true masses and orbital inclinations of the two Earth-mass planets in the PSR B1257+12 system, based on the analysis of their mutual gravitational perturbations detectable as microsecond variations of the…

天体物理学 · 物理学 2009-11-07 Maciej Konacki , Alex Wolszczan

In this paper we present a new method that can be used for analysis of time of arrival of a pulsar pulses (TOAs). It is designated especially to detect quasi-periodic variations of TOAs. We apply our method to timing observations of PSR…

天体物理学 · 物理学 2009-10-30 Maciej Konacki , Andrzej J. Maciejewski , Alex Wolszczan

We investigate on the relative inclination of the planets B and C orbiting the pulsar PSR B1257+12 in connection with potential violations of the equivalence principle (Abridged).

广义相对论与量子宇宙学 · 物理学 2010-11-16 Lorenzo Iorio

We call attention to the surprising similarity between the newly discovered planetary system around PSR B1257+12 and the inner solar system. The similarity is in the ratios of the orbital radii and the masses of the three planets.

天体物理学 · 物理学 2009-10-22 Tsevi Mazeh , Itzhak Goldman

We present an analysis of $23~$yr of pulse arrival times for PSR B1259$-$63. The pulsar is in a binary orbit about its approximately $20~M_{\odot}$ companion LS$~$2883. Our best-fitting timing solution has none of the pulse-number…

太阳与恒星天体物理 · 物理学 2015-06-17 R. M. Shannon , S. Johnston , R. N. Manchester

High-precision pulsar timing relies on a solar-system ephemeris in order to convert times of arrival (TOAs) of pulses measured at an observatory to the solar system barycenter. Any error in the conversion to the barycentric TOAs leads to a…

We analytically compute the effects that a mass variation rate \dot M/M of a pulsar may have on the changes \Delta\tau in the times of arrival of its pulses due to test particle companions, and on their orbital dynamics. We apply our…

广义相对论与量子宇宙学 · 物理学 2010-12-01 Lorenzo Iorio

About two years ago, Wolszczan and Frail announced the detection of a possible planetary system consisting of two Earth-mass planets around a millisecond pulsar. It was pointed out shortly thereafter that the mutual gravitational…

天体物理学 · 物理学 2007-05-23 Renu Malhotra

Freire et al. (2009, MNRAS, 396, 1764) have put forward a technique for timing the double pulsar system PSR J0737-3039A/B (hereafter A and B, respectively). Their technique can be used to determine the sense of rotation of A relative to its…

太阳与恒星天体物理 · 物理学 2014-02-05 Zhu-Xing Liang , Yi Liang

We report on 12 years of observations of PSR J1713+0747, a pulsar in a 68-day orbit with a white dwarf. Pulse times of arrival were measured with uncertainties as small as 200 ns. The timing data yielded measurements of the relativistic…

天体物理学 · 物理学 2009-11-10 Eric M. Splaver , David J. Nice , Ingrid H. Stairs , Andrea N. Lommen , Donald C. Backer

Tempo2 is a new software package for the analysis of pulsar pulse times of arrival. In this paper we describe in detail the timing model used by tempo2, and discuss limitations on the attainable precision. In addition to the intrinsic…

天体物理学 · 物理学 2009-11-11 R. T. Edwards , G. B. Hobbs , R. N. Manchester

We present a principal component analysis method which tracks and compensates for short-timescale variability in pulsar profiles, with a goal of improving pulsar timing precision. We couple this with a fast likelihood technique for…

天体物理仪器与方法 · 物理学 2017-12-13 Hsiu-Hsien Lin , Kiyoshi Masui , Ue-Li Pen , Jeffrey B. Peterson

We describe the techniques used in pulsar timing observations, and show how these observations may be applied to tests of strong-field general relativity for double-neutron-star binary systems. We describe the tests of GR resulting from the…

天体物理学 · 物理学 2017-08-23 I. H. Stairs

We present a new timing solution for PSR B1534+12, based on coherently-dedispersed observations at Jodrell Bank and, recently, Arecibo. The new data have resulted in improved measurements of the post-Keplerian timing parameters, including…

天体物理学 · 物理学 2007-05-23 I. H. Stairs , D. J. Nice , S. E. Thorsett , J. H. Taylor

We present a new theoretical analysis of the PSR B1620-26 triple system in the globular cluster M4, based on the latest radio pulsar timing data, which now include measurements of five time derivatives of the pulse frequency. These data…

天体物理学 · 物理学 2009-10-31 E. B. Ford , K. J. Joshi , F. A. Rasio , B. Zbarsky

We present a general method for determining the masses and orbital parameters of binary millisecond pulsars with long orbital periods (P_orb >> 1 yr), using timing data in the form of pulse frequency derivatives. We apply our method to…

天体物理学 · 物理学 2009-10-28 K. J. Joshi , F. A. Rasio

Efforts are made to understand the timing behaviors (e.g., the jumps of the projected pulsar semimajor axis in the periastron passages) observed via 13-year timing for PSR B1259-63. In the first, planet-like objects are suggested to orbit…

天体物理学 · 物理学 2014-10-13 R. X. Xu

The double pulsar (PSR J0737-3039A/B) provides some of the most stringent tests of general relativity (GR) and its alternatives. The success of this system in tests of GR is largely due to the high-precision, long-term timing of its…

PSR J1518+4904 is one of only 9 known double neutron star systems. These systems are highly valuable for measuring the masses of neutron stars, measuring the effects of gravity, and testing gravitational theories. We determine an improved…

天体物理学 · 物理学 2009-11-13 G. H. Janssen , B. W. Stappers , M. Kramer , D. J. Nice , A. Jessner , I. Cognard , M. B. Purver , .

Pulsar timing is a powerful tool that, by accounting for every rotation of a pulsar, precisely measures the spin frequency, spin frequency derivatives, astrometric position, binary parameters when applicable, properties of the ISM, and…

高能天体物理现象 · 物理学 2024-04-05 Jackson Taylor , Scott Ransom , Prajwal V. Padmanabh
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