Results 1 to 10 of about 605 (176)

Multi-method Timing of Transient Radio Pulsars with the GBT350 and GBNCC Surveys

The Astrophysical Journal
We present the timing solutions for three radio pulsars discovered with the Green Bank North Celestial Cap and 350 MHz Green Bank Telescope drift-scan surveys. These pulsars were initially discovered through their single-pulse emissions and are therefore
E. F. Lewis, M. A. McLaughlin, J. K. Swiggum, H. Blumer, J. Boyles, P. Chawla, T. Dolch, J. W. T. Hessels, D. L. Kaplan, C. Karako-Argaman, V. Kaspi, V. Kondratiev, L. Levin, R. S. Lynch, J. G. Martinez, A. E. McEwen, R. Miller, E. Parent, S. M. Ransom, M. S. E. Roberts, A. Rowe, R. Spiewak, I. H. Stairs, K. Stovall, J. Thorley, J. van Leeuwen   +25 more
doaj   +3 more sources

Exploring Pulsar Timing Precision: A Comparative Study of Polarization Calibration Methods for NANOGrav Data from the Green Bank Telescope

The Astrophysical Journal
Pulsar timing array experiments have recently uncovered evidence for a nanohertz gravitational wave background by precisely timing an ensemble of millisecond pulsars.
Lankeswar Dey, Maura A. McLaughlin, Haley M. Wahl, Paul B. Demorest, Zaven Arzoumanian, Harsha Blumer, Paul R. Brook, Sarah Burke-Spolaor, H. Thankful Cromartie, Megan E. DeCesar, Timothy Dolch, Justin A. Ellis, Robert D. Ferdman, Elizabeth C. Ferrara, William Fiore, Emmanuel Fonseca, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Deborah C. Good, Ross J. Jennings, Megan L. Jones, Michael T. Lam, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Cherry Ng, David J. Nice, Timothy T. Pennucci, Nihan S. Pol, Scott M. Ransom, Renée Spiewak, Ingrid H. Stairs, Kevin Stovall, Joseph K. Swiggum   +34 more
doaj   +3 more sources

Applying clock comparison methods to pulsar timing observations [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Frequency metrology outperforms any other branch of metrology in accuracy (parts in 10−16) and small fluctuations (<10−17). In turn, among celestial bodies, the rotation speed of millisecond pulsars is by far the most stable (<10−18). Therefore, the precise measurement of the time of arrival (TOA) of pulsar signals
Siyuan Chen, François Vernotte, Enrico Rubiola   +2 more
openaire   +4 more sources

Wide-band Timing of the Parkes Pulsar Timing Array UWL Data

The Astrophysical Journal, 2023
In 2018 an ultra–wide-bandwidth low-frequency (UWL) receiver was installed on the 64 m Parkes Radio Telescope, enabling observations with an instantaneous frequency coverage from 704 to 4032 MHz.
Małgorzata Curyło, Timothy T. Pennucci, Matthew Bailes, N. D. Ramesh Bhat, Andrew D. Cameron, Shi Dai, George Hobbs, Agastya Kapur, Richard N. Manchester, Rami Mandow, Matthew T. Miles, Christopher J. Russell, Daniel J. Reardon, Ryan M. Shannon, Renée Spiewak, Willem van Straten, Xing-Jiang Zhu, Andrew Zic   +17 more
doaj   +1 more source

Iterative time-domain method for resolving multiple gravitational wave sources in pulsar timing array data

Physical Review D, 2022
18 pages, 8 figures, appendix A was changed to further clarify AvPhase, submitted to ...
Yi-Qian Qian, Soumya D. Mohanty, Yan Wang   +2 more
openaire   +2 more sources

The Green Bank North Celestial Cap Survey. VIII. 21 New Pulsar Timing Solutions

The Astrophysical Journal, 2023
We present timing solutions for 21 pulsars discovered in 350 MHz surveys using the Green Bank Telescope (GBT). All were discovered in the Green Bank North Celestial Cap pulsar survey, with the exception of PSR J0957−0619, which was found in the GBT 350 ...
W. Fiore, L. Levin, M. A. McLaughlin, A. Anumarlapudi, D. L. Kaplan, J. K. Swiggum, G. Y. Agazie, R. Bavisotto, P. Chawla, M. E. DeCesar, T. Dolch, E. Fonseca, V. M. Kaspi, Z. Komassa, V. I. Kondratiev, J. van Leeuwen, E. F. Lewis, R. S. Lynch, A. E. McEwen, R. Mundorf, H. Al Noori, E. Parent, Z. Pleunis, S. M. Ransom, X. Siemens, R. Spiewak, I. H. Stairs, M. Surnis, T. J. Tobin   +28 more
doaj   +1 more source

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

Universe, 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

Acta 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]

Physical 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., Alexander, P., Hobson, M., Taylor, S., Gair, J., Balan, S., van Haasteren, R.   +6 more
openaire   +3 more sources

A Pilot Study of Nulling in 22 Pulsars Using Mixture Modeling

The 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, Joseph K. Swiggum, David L. Kaplan, Travis D. J. Fichtenbauer   +3 more
doaj   +1 more source