Results 31 to 40 of about 13,579 (182)

Pulsar time delay estimation method based on two-level compressed sensing

Acta Physica Sinica, 2018
In the traditional compressed sensing algorithms, the precision of the time delay estimation is closely related to the number of atoms in the dictionary. The bigger the atom number, the smaller the atomic interval becomes, thus the higher the accuracy of the time delay estimation will be.
null Kang Zhi-Wei, null Wu Chun-Yan, null Liu Jin, null Ma Xin, null Gui Ming-Zhen   +4 more
openaire   +1 more source

Frequency-Dependent Template Profiles for High Precision Pulsar Timing [PDF]

, 2018
Pulsar timing experiments require high fidelity template profiles in order to minimize the biases in pulse time-of-arrival (TOA) measurements and their uncertainties.
Pennucci, Timothy T.
core   +2 more sources

An evidence based time-frequency search method for gravitational waves from pulsar glitches

Journal of Physics: Conference Series, 2008
We review and expand on a Bayesian model selection technique for the detection of gravitational waves from neutron star ring-downs associated with pulsar glitches. The algorithm works with power spectral densities constructed from overlapping time segments of gravitational wave data.
Clark, J., Heng, I. S., Pitkin, M., Woan, G.   +3 more
openaire   +2 more sources

Detection and localization of continuous gravitational waves with pulsar timing arrays: the role of pulsar terms [PDF]

, 2016
A pulsar timing array is a Galactic-scale detector of nanohertz gravitational waves (GWs). Its target signals contain two components: the `Earth term' and the `pulsar term' corresponding to GWs incident on the Earth and pulsar respectively.
Hobbs, George, Manchester, Richard N., Mohanty, Soumya D., Wang, Yan, Wen, Linqing, Xiong, Jie, Xu, Yanjun, Zhu, Xingjiang   +7 more
core   +3 more sources

The Green Bank North Celestial Cap Survey. VII. 12 New Pulsar Timing Solutions

The Astrophysical Journal, 2023
We present timing solutions for 12 pulsars discovered in the Green Bank North Celestial Cap 350 MHz pulsar survey, including six millisecond pulsars (MSPs), a double neutron star (DNS) system, and a pulsar orbiting a massive white dwarf companion. Timing
J. K. Swiggum, Z. Pleunis, E. Parent, D. L. Kaplan, M. A. McLaughlin, I. H. Stairs, R. Spiewak, G. Y. Agazie, P. Chawla, M. E. DeCesar, T. Dolch, W. Fiore, E. Fonseca, A. G. Istrate, V. M. Kaspi, V. I. Kondratiev, J. van Leeuwen, L. Levin, E. F. Lewis, R. S. Lynch, A. E. McEwen, H. Al Noori, S. M. Ransom, X. Siemens, M. Surnis   +24 more
doaj   +1 more source

Observing gravitational wave bursts in pulsar timing measurements

, 2010
We propose a novel method for observing the gravitational wave signature of super-massive black hole (SMBH) mergers. This method is based on detection of a specific type of gravitational waves, namely gravitational wave burst with memory (BWM), using ...
Baskaran, Bertotti, Blanchet, Bontz, Braginsky, Braginsky, Caramete, Christodoulou, Conselice, Cordes, D. Baskaran, Detweiler, Enoki, Estabrook, Foster, Grishchuk, Grishchuk, Hellings, Hobbs, Janssen, Jenet, Jenet, Jenet, K. A. Postnov, Keating, Kopeikin, Kovacs, M. S. Pshirkov, Manchester, Nazin, Ott, Payne, Romani, Sathyaprakash, Sazhin, Sesana, Sesana, Seto, Smarr, Thorne, van Haasteren, Verbiest, Zel'Dovich   +42 more
core   +1 more source

Realistic Sensitivity Curves For Pulsar Timing Arrays [PDF]

, 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.
Hazboun, J. S., Romano, J. D., Smith, Tristan L.   +2 more
core   +3 more sources

The NANOGrav 15 yr Data Set: Observations and Timing of 68 Millisecond Pulsars

The Astrophysical Journal Letters, 2023
We present observations and timing analyses of 68 millisecond pulsars (MSPs) comprising the 15 yr data set of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav).
Gabriella Agazie, Md Faisal Alam, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Paul T. Baker, Laura Blecha, Victoria Bonidie, Adam Brazier, Paul R. Brook, Sarah Burke-Spolaor, Bence Bécsy, Christopher Chapman, Maria Charisi, Shami Chatterjee, Tyler Cohen, James M. Cordes, Neil J. Cornish, Fronefield Crawford, H. Thankful Cromartie, Kathryn Crowter, Megan E. DeCesar, Paul B. Demorest, Timothy Dolch, Brendan Drachler, Elizabeth C. Ferrara, William Fiore, Emmanuel Fonseca, Gabriel E. Freedman, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Deborah C. Good, Kayhan Gültekin, Jeffrey S. Hazboun, Ross J. Jennings, Cody Jessup, Aaron D. Johnson, Megan L. Jones, Andrew R. Kaiser, David L. Kaplan, Luke Zoltan Kelley, Matthew Kerr, Joey S. Key, Anastasia Kuske, Nima Laal, Michael T. Lam, William G. Lamb, T. Joseph W. Lazio, Natalia Lewandowska, Ye Lin, Tingting Liu, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Chung-Pei Ma, Dustin R. Madison, Kaleb Maraccini, Alexander McEwen, James W. McKee, Maura A. McLaughlin, Natasha McMann, Bradley W. Meyers, Chiara M. F. Mingarelli, Andrea Mitridate, Cherry Ng, David J. Nice, Stella Koch Ocker, Ken D. Olum, Elisa Panciu, Timothy T. Pennucci, Benetge B. P. Perera, Nihan S. Pol, Henri A. Radovan, Scott M. Ransom, Paul S. Ray, Joseph D. Romano, Laura Salo, Shashwat C. Sardesai, Carl Schmiedekamp, Ann Schmiedekamp, Kai Schmitz, Brent J. Shapiro-Albert, Xavier Siemens, Joseph Simon, Magdalena S. Siwek, Ingrid H. Stairs, Daniel R. Stinebring, Kevin Stovall, Abhimanyu Susobhanan, Joseph K. Swiggum, Stephen R. Taylor, Jacob E. Turner, Caner Unal, Michele Vallisneri, Sarah J. Vigeland, Haley M. Wahl, Qiaohong Wang, Caitlin A. Witt, Olivia Young, The NANOGrav Collaboration   +100 more
doaj   +1 more source

Generative pulsar timing analysis

, 2015
A new Bayesian method for the analysis of folded pulsar timing data is presented that allows for the simultaneous evaluation of evolution in the pulse profile in either frequency or time, along with the timing model and additional stochastic processes ...
Alexander, P., Hobson, M. P., Lentati, L
core   +1 more source

Pulsar timing methods for evaluating dispersion measure time series

Astronomy & Astrophysics
Context. Radio pulsars can be used for many studies, including the investigation of the ionized interstellar medium and the solar wind via their dispersive effects. These phenomena affect the high-precision timing of pulsars and are among the main sources of noise in experiments searching for low-frequency gravitational waves in pulsar data. Aims.
F. Iraci, A. Chalumeau, C. Tiburzi, J. P. W. Verbiest, A. Possenti, G. M. Shaifullah, S. C. Susarla, M. A. Krishnakumar, M. T. Lam, H. T. Cromartie, M. Kerr, Jean-Mathias Grießmeier   +11 more
openaire   +4 more sources