Results 121 to 130 of about 12,076,896 (214)

Algorithmic Pulsar Timer for Binaries

The Astrophysical Journal
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 interstellar medium, and ...
Jackson Taylor, Scott Ransom, Prajwal V. Padmanabh   +2 more
doaj   +1 more source

The NANOGrav 12.5 yr Dataset: Chromatic Noise Characterization and Mitigation with Time-domain Kernels

The Astrophysical Journal
Pulsar timing arrays (PTAs) have recently entered the detection era, quickly moving beyond the goal of simply improving sensitivity at the lowest frequencies for the sake of observing the stochastic gravitational wave background (GWB), and focusing on ...
Jeffrey S. Hazboun, Joseph Simon, Jeremy Baier, Bjorn Larsen, Daniel J. Oliver, Paul T. Baker, Bence Bécsy, Siyuan Chen, Alberto Diaz Hernandez, Justin A. Ellis, A. Miguel Holgado, Kristina Islo, Aaron Johnson, Andrew R. Kaiser, Nima Laal, Alexander McEwen, Nihan S. Pol, Joey Shapiro Key, Min Young Kim, Matthew Samson, Brent J. Shapiro-Albert, Jerry P. Sun, Stephen R. Taylor, Caitlin A. Witt, Jeremy Volpe, Christine Ye, Harsha Blumer, Paul R. Brook, Shami Chatterjee, James M. Cordes, Fronefield Crawford, H. Thankful Cromartie, Megan E. DeCesar, Paul B. Demorest, Timothy Dolch, Robert D. Ferdman, Elizabeth C. Ferrara, William Fiore, Emmanuel Fonseca, Nathan Garver-Daniels, Peter A. Gentile, Deborah C. Good, Ross J. Jennings, Megan L. Jones, David L. Kaplan, Michael T. Lam, T. Joseph W. Lazio, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Dustin R. Madison, Maura A. McLaughlin, Chiara M. F. Mingarelli, Cherry Ng, David J. Nice, Timothy T. Pennucci, Scott M. Ransom, Paul S. Ray, Xavier Siemens, Renée Spiewak, Ingrid H. Stairs, Daniel R. Stinebring, Kevin Stovall, Joseph K. Swiggum, Jacob E. Turner, Michele Vallisneri, Sarah J. Vigeland   +66 more
doaj   +1 more source

A noise independent method of measuring sky location and chirp mass of gravitational waves single sources, using non-simultaneously timing of pulsars

, 2013
We propose a new method to measure parameters of SMBHBs as individual resolvable evolving single GWs sources, using the timing data of three or more non-simultaneous pulsars. These parameters include the sky position of the SMBHB and a chirp mass-red shift combination M_c(1+z).
openaire   +2 more sources

Bias from small-scale leakage in Pulsar Timing Array maps

Pulsar Timing Array experiments are rapidly approaching the era of gravitational wave background anisotropy detection. The timing residuals of each pulsar are an integrated measure of the gravitational-wave power across all angular scales. However,
Alvise Raccanelli, Chiara M.F. Mingarelli, Federico Semenzato, Nicola Bellomo   +3 more
core   +1 more source

A method for searching single gravitational wave sources with a pulsar timing array

, 2013
L'existence des ondes gravitationnelles, fluctuations de l'espace-temps lui-même, a été prédite sans, pour l'instant, qu'une détection directe n'ait été encore possible. A l'heure actuelle, des méthodes consistant en des détecteurs interférométriques de plusieurs kilomètres de long sont à l'oeuvre pour permettre une première détection.
openaire   +1 more source

Two decades of pulsar timing of Vela

, 2007
Pulsar timing at the Mt Pleasant observatory has focused on Vela, which can be tracked for 18 hours of the day. These nearly continuous timing records extend over 24 years allowing a greater insight into details of timing noise, micro glitches and other ...
Dodson, R (15510863), Lewis, D (15511508), Peter McCulloch (14743786)   +2 more
core  

Gravitational wave detection with pulsar timing

, 2013
With pulsar timing experiments gravitational waves can be detected in much the same way as with laser interferometers. Primary source candidates include a postulated stochastic background of gravitational waves by merging supermassive black hole systems ...
van Haasteren, R.
core  

Advanced pulsar timing methods : deep learning for the mitigation of radio frequency interferences and timing analysis of the relativistic binary system PSR J1528-3146

, 2023
Pulsars are rapidly-rotating and highly magnetized neutron stars with radio beams originating from the magnetic poles which sweep through space with each rotation of the star. This thesis focuses on the processing chain of radio observations of pulsars and on the exploitation of high precision timing data for the detailed study of the binary pulsar ...
openaire   +1 more source

A radio pulsar phase from SGR J1935+2154 provides clues to the magnetar FRB mechanism. [PDF]

Sci Adv, 2023
Zhu W, Xu H, Zhou D, Lin L, Wang B, Wang P, Zhang C, Niu J, Chen Y, Li C, Meng L, Lee K, Zhang B, Feng Y, Ge M, Göğüş E, Guan X, Han J, Jiang J, Jiang P, Kouveliotou C, Li D, Miao C, Miao X, Men Y, Niu C, Wang W, Wang Z, Xu J, Xu R, Xue M, Yang Y, Yu W, Yuan M, Yue Y, Zhang S, Zhang Y.   +36 more
europepmc   +1 more source

Neutron star mass estimates from gamma-ray eclipses in spider millisecond pulsar binaries. [PDF]

Nat Astron, 2023
Clark CJ, Kerr M, Barr ED, Bhattacharyya B, Breton RP, Bruel P, Camilo F, Chen W, Cognard I, Cromartie HT, Deneva J, Dhillon VS, Guillemot L, Kennedy MR, Kramer M, Lyne AG, Sánchez DM, Nieder L, Phillips C, Ransom SM, Ray PS, Roberts MSE, Roy J, Smith DA, Spiewak R, Stappers BW, Tabassum S, Theureau G, Voisin G.   +28 more
europepmc   +1 more source