Results 21 to 30 of about 12,076,896 (214)

Realistic Sensitivity Curves For Pulsar Timing Arrays [PDF]

open access: yes, 2019
We construct realistic sensitivity curves for pulsar timing array searches for gravitational waves, incorporating both red and white noise contributions to individual pulsar noise spectra, and the effect of fitting to a pulsar timing model.
Romano, J. D.   +4 more
core   +3 more sources

Multi-Messenger Astrophysics of a Millisecond Pulsar Orbiting around a Massive Black Hole

open access: yesUniverse, 2022
Extreme-mass-ratio and intermediate-mass-ratio binaries with a millisecond pulsar are gravitational-wave sources that emit also electromagnetic radiation.
Kinwah Wu
doaj   +1 more source

A new time-domain estimation method for period of pulsars

open access: yesActa Physica Sinica, 2012
The estimation of pulsar period is important for pulsar searching, observation and timing. In this paper, the frequency-domain method which is popular in periodicity searches is analyzed, and further more, a novel method in time-domain is proposed to estimate the cyclo-period of pulsars based on the second-order cyclo-stationary model of the radiation ...
Li Jian-Xun, Ke Xi-Zheng, Zhao Bao-Sheng
openaire   +1 more source

Hyper-efficient model-independent Bayesian method for the analysis of pulsar timing data [PDF]

open access: yesPhysical Review D, 2013
A new model independent method is presented for the analysis of pulsar timing data and the estimation of the spectral properties of an isotropic gravitational wave background (GWB). We show that by rephrasing the likelihood we are able to eliminate the most costly aspects of computation normally associated with this type of data analysis.
Lentati, L.   +6 more
openaire   +3 more sources

A Pilot Study of Nulling in 22 Pulsars Using Mixture Modeling

open access: yesThe Astrophysical Journal, 2023
The phenomenon of pulsar nulling, observed as the temporary inactivity of a pulsar, remains poorly understood both observationally and theoretically.
Akash Anumarlapudi   +3 more
doaj   +1 more source

Timing-residual power spectrum of a polarized stochastic gravitational-wave background in pulsar-timing-array observation

open access: yes, 2022
We study the observation of a stochastic gravitational-wave background (SGWB) made by a pulsar-timing array in the spherical harmonic space of the observable. The observable is a timing residual which is the time-averaged redshift fluctuation of a pulsar
Liu, Guo-Chin;Ng, Kin-Wang   +2 more
core   +1 more source

Decade-long Timing Study of the Black Widow Millisecond Pulsar J1544+4937

open access: yesThe Astrophysical Journal, 2023
Results from 11 yr of radio timing for the eclipsing black widow millisecond pulsar (MSP) binary J1544+4937 is presented in this paper. We report a phase-connected timing model for this MSP, using observations with the Giant Metrewave Radio Telescope ...
Sangita Kumari   +3 more
doaj   +1 more source

PRACTICAL METHODS FOR CONTINUOUS GRAVITATIONAL WAVE DETECTION USING PULSAR TIMING DATA

open access: yesThe Astrophysical Journal, 2012
submitted to ...
Ellis, J. A.   +2 more
openaire   +3 more sources

Scattering Delay Mitigation in High-accuracy Pulsar Timing: Cyclic Spectroscopy Techniques

open access: yesThe Astrophysical Journal, 2023
We simulate scattering delays from the interstellar medium to examine the effectiveness of three estimators in recovering these delays in pulsar timing data. Two of these estimators use the more traditional process of fitting autocorrelation functions to
Jacob E. Turner   +5 more
doaj   +1 more source

Pulsar timing array

open access: yes, 2009
Simultaneous timing of several pulsars distributed over the sky, so called Pulsar Timing Array (PTA), is used for a variety of metrological and astronomical applications.
Alexander E. Rodin
core   +1 more source

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