Results 51 to 60 of about 12,076,896 (214)

Timing gamma-ray pulsars using Gibbs sampling

Astronomy & Astrophysics
Timing analyses of gamma-ray pulsars in the Fermi Large Area Telescope (LAT) dataset can provide sensitive probes of many astrophysical processes, including timing noise in young pulsars, orbital period variations in redback binaries, and the stochastic ...
Clark C. J., Valtolina S., Nieder L., van Haasteren R.   +3 more
doaj   +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

Data‐Independent Acquisition Mass Spectrometry in Tumor Classification and Cancer Biomarker Research

Mass Spectrometry Reviews, EarlyView.
Abstract Cancer treatment is far from optimal also because current classification systems do not reflect the complex molecular status of the tumor and its phenotype in sufficient detail. To construct molecular tumor classifiers, omics tools provide complex molecular data reflecting many aspects from genotype to phenotype.
Jan Simonik, Petr Lapcik, Pavla Bouchalova, Pavel Bouchal   +3 more
wiley   +1 more source

The art of precision pulsar timing

, 2009
Pulsar timing has proven to be a wonderful tool with which to study neutron stars, providing insights into their ages, distances, proper motions, magnetic field strengths, internal structure, binary histories and evolution, and for tests of General ...
Matthew Bailes (18925756)
core   +1 more source

The effect of Shapiro delay on pulsar timing [PDF]

, 2011
Light passing near a massive object (star) will take longer to arrive at the Earth than it would if the object was not present. This additional time is called the Shapiro delay.
Sakai, Satoru
core   +5 more sources

Timing Gravity with Pulsars in the Strong Field

The Astrophysical Journal Letters
We propose a novel approach for the timing of pulsars orbiting a supermassive black hole, which implements the fully relativistic calculations of the photon travel time into a robust timing model.
Riccardo Della Monica, Ivan De Martino
doaj   +1 more source

Rapid construction of joint pulsar timing array data sets: the Lite method

Monthly Notices of the Royal Astronomical Society
ABSTRACT The International Pulsar Timing Array (IPTA)’s second data release (IPTA DR2) combines decades of observations of 65 millisecond pulsars from 7 radio telescopes. IPTA data sets should be the most sensitive data sets to nanohertz gravitational waves (GWs), but take years to assemble, often excluding valuable recent data.
B Larsen, C M F Mingarelli, P T Baker, J S Hazboun, S Chen, L Schult, S R Taylor, J Simon, J Antoniadis, J Baier, R N Caballero, A Chalumeau, Z Chen, I Cognard, D Deb, V Di Marco, T Dolch, I O Eya, E C Ferrara, K A Gersbach, D C Good, H Hu, A Kapur, S Kala, M Kramer, M T Lam, W G Lamb, T J W Lazio, K Liu, Y Liu, M McLaughlin, D J Nice, B B P Perera, A Petiteau, S M Ransom, D J Reardon, C J Russell, G M Shaifullah, L Speri, A Srivastava, G Theureau, J Wang, J Wang, L Zhang   +43 more
openaire   +4 more sources

A COHERENT METHOD FOR THE DETECTION AND PARAMETER ESTIMATION OF CONTINUOUS GRAVITATIONAL WAVE SIGNALS USING A PULSAR TIMING ARRAY

The Astrophysical Journal, 2014
The use of a high precision pulsar timing array is a promising approach to detecting gravitational waves in the very low frequency regime ($10^{-6} -10^{-9}$ Hz) that is complementary to the ground-based efforts (e.g., LIGO, Virgo) at high frequencies ($\sim 10 -10^3$ Hz) and space-based ones (e.g., LISA) at low frequencies ($10^{-4} -10^{-1}$ Hz). One
Yan Wang, Soumya D. Mohanty, Fredrick A. Jenet   +2 more
openaire   +3 more sources

DrLS: Distortion‐Resistant Lossless Steganography via Colour Depth Interpolation

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT The lossless data steganography is to hide a certain amount of information into a container image. Previous lossless steganography methods fail to strike a balance between capacity, imperceptibility, accuracy, and robustness, commonly vulnerable to distortion on container images.
Youmin Xu, Xuanyu Zhang, Xiandong Meng, Jian Zhang   +3 more
wiley   +1 more source

The Search For Pulsar Wind Nebulae in the Very High Energy Gamma-ray Regime [PDF]

, 2010
The aim of this Thesis is to study the development of pulsar wind nebulae in the TeV regime and in doing so uncover more sources which have as yet not been observed at these wavelengths.
KEOGH, DOMINIC,ROBERT, Keogh, Dominic Robert   +1 more
core