Results 31 to 40 of about 13,607 (215)

The optimal filters for the construction of the ensemble pulsar time [PDF]

, 2008
The algorithm of the ensemble pulsar time based on the optimal Wiener filtration method has been constructed. This algorithm allows the separation of the contributions to the post-fit pulsar timing residuals of the atomic clock and pulsar itself. Filters
Rodin, Alexander E.
core   +1 more source

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

From theory to inference: New methods for probing the nanohertz Gravitational Wave sky with Pulsar Timing Arrays

Pulsar Timing Array (PTA) experiments aim to detect gravitational wave (GW) signals at nanohertz frequencies through pulsar timing, by characterising the timing delays they are expected to induce. Pulsars are incredibly stable, compact, fast-rotating objects with a collimated jet of radio emission, observed as a pulsating signal (lighthouse effect ...
Valtolina, Serena
openalex   +2 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

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

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

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

Strong-Field Gravity Tests with the Double Pulsar

Physical Review X, 2021
Continued timing observations of the double pulsar PSR J0737–3039A/B, which consists of two active radio pulsars (A and B) that orbit each other with a period of 2.45 h in a mildly eccentric (e=0.088) binary system, have led to large improvements in the ...
M. Kramer, I. H. Stairs, R. N. Manchester, N. Wex, A. T. Deller, W. A. Coles, M. Ali, M. Burgay, F. Camilo, I. Cognard, T. Damour, G. Desvignes, R. D. Ferdman, P. C. C. Freire, S. Grondin, L. Guillemot, G. B. Hobbs, G. Janssen, R. Karuppusamy, D. R. Lorimer, A. G. Lyne, J. W. McKee, M. McLaughlin, L. E. Münch, B. B. P. Perera, N. Pol, A. Possenti, J. Sarkissian, B. W. Stappers, G. Theureau   +29 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

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