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18 papers · 1 filter
Status Update of the Parkes Pulsar Timing Array
J. P. W. Verbiest, M. Bailes, N. D. R. Bhat +16
The Parkes Pulsar Timing Array project aims to make a direct detection of a gravitational-wave background through timing of millisecond pulsars. In this article, the main requireme…
The international pulsar timing array project: using pulsars as a gravitational wave detector
G. Hobbs, A. Archibald, Z. Arzoumanian +55
The International Pulsar Timing Array project combines observations of pulsars from both Northern and Southern hemisphere observatories with the main aim of detecting ultra-low fre…
Specification testing in nonlinear and nonstationary time series autoregression
Jiti Gao, Maxwell King, Zudi Lu +1
This paper considers a class of nonparametric autoregressive models with nonstationarity. We propose a nonparametric kernel test for the conditional mean and then establish an asym…
Mutual Fund Theorem for continuous time markets with random coefficients
Nikolai Dokuchaev
We study the optimal investment problem for a continuous time incomplete market model such that the risk-free rate, the appreciation rates and the volatility of the stocks are all…
100 Microarcsecond Resolution VLBI Imaging of Anisotropic Interstellar Scattering towards Pulsar B0834+06
Walter F. Brisken, Jean-Pierre Macquart, Jian-Jian Gao +4
We have invented a novel technique to measure the radio image of a pulsar scattered by the interstellar plasma with 0.1 mas resolution. We extend the "secondary spectrum" analysis…
Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009
LAT Collaboration, E. Angelakis, C. Bailyn +39
Following the recent discovery of gamma rays from the radio-loud narrow-line Seyfert 1 galaxy PMN J0948+0022 (z=0.5846), we started a multiwavelength campaign from radio to gamma r…