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Related papers: Orientation Angles of a Pulsar's Polarization Vect…

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I present a brief update on the transverse polarization distributions, focusing on model calculations and phenomenological perspectives.

High Energy Physics - Phenomenology · Physics 2009-10-31 V. Barone

In this paper we propose a way to use optical polarisation observations to provide independent constraints and guide to the modelling of the spectral energy distribution (SED) of blazars, which is particularly useful when two-zone models…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Ulisses Barres de Almeida , Fabrizio Tavecchio , Nijil Mankuzhiyil

The sizes of pulsar radio pulses in the plane of the sky are determined. This is important not only in relation to the possibility of directly resolving the radio pulses spatially, but also for verifying and placing constraints on existing…

High Energy Astrophysical Phenomena · Physics 2015-06-23 H. L. Hakobyan , V. S. Beskin

The Stokes parameters have been found in the framework of quantum electrodynamics for the description of polarization of radiation emitted by relativistic positrons channeled between (110) planes in Si crystal. The degree of polarization,…

Accelerator Physics · Physics 2017-08-31 S. Bellucci , M. Shatnev

Highly polarized components of pulse profiles are investigated by analyzing observational data and simulating the emission processes. The highly polarized components appear at the leading or trailing part of a pulse profile, which…

High Energy Astrophysical Phenomena · Physics 2016-08-29 P. F. Wang , J. L. Han

The strong coupling between the spatial and polarisation degrees of freedom (DoF) in vector modes enables a diverse array of exotic, inhomogeneous polarisation distributions through a non-separable superposition, which are conventionally…

Based on a sample of 355 quasars with significant optical polarization, we found that quasar polarization vectors are not randomly oriented over the sky as naturally expected. The probability that the observed distribution of polarization…

Astrophysics · Physics 2014-01-22 D. Hutsemekers , A. Payez , R. Cabanac , H. Lamy , D. Sluse , B. Borguet , J. -R. Cudell

We present a simple but powerful technique for the analysis of polarized emission from radio galaxies and other objects. It is based on the fact that images of Stokes parameters often contain considerably more information than is available…

Astrophysics of Galaxies · Physics 2021-11-10 Lawrence Rudnick , Debora Katz , Lerato Sebokolodi

We report on the experimental implementation of a polarimeter based on a scheme known to be optimal for obtaining the polarization vector of ensembles of spin-1/2 quantum systems, and the alignment procedure for this polarimeter is…

Quantum Physics · Physics 2007-05-23 Alexander Ling , Soh Kee Pang , Antia Lamas-Linares , Christian Kurtsiefer

Using new techniques based on the polarimetric fluctuation spectrum, the fluctuation behaviour of the polarization of individual pulses is examined in three pulsars that show drifting subpulses, allowing various aspects of the fluctuations…

Astrophysics · Physics 2009-11-10 R. T. Edwards

We present the model for determination of pulsar distances or average electron distribution using a method similar to the widely used dependence of A$_V$ on distances in different directions. To have reliable pulsar distances, we have used…

Astrophysics · Physics 2007-05-23 Oktay H. Guseinov , Efe Yazgan , Sevinc Tagieva , Aybuke Kupce Yoldas

The radiation emission spectra of polarized photons emitted from charged particles in single oriented crystals are obtained in Bayer-Katkov quasiclassical approach. The results of numerical calculations are presented in the region of small…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. M. Darbinyan , N. L. Ter-Isaakyan

Profile comparison of the Stokes parameters $V$ and $I$ is a powerful tool for maser data analysis, providing the first direct methods for unambiguous determination of (1) the maser saturation stage, (2) the amplification optical depth and…

Astrophysics · Physics 2009-10-30 Moshe Elitzur

Using all available multi-component radio pulse profiles for pulsars with medium to long periods and good polarisation data, we have constructed a two-dimensional image of the mean radio beamshape. This shows a peak near the centre of the…

Astrophysics · Physics 2009-10-31 J. L. Han , R. N. Manchester

We suggest a technique for construction of profiles of incoherent pulsar emission using instantaneous angular distribution indicatrix of radiation from relativistic source moving in the neutron star magnetosphere. In the general case the…

Astrophysics · Physics 2007-05-23 V. A. Bordovitqsyn , V. Ya. Epp , V. G. Bulenok

Propagation of radio waves in the ultrarelativistic magnetized electron-positron plasma of pulsar magnetosphere is considered. Polarization state of the original natural waves is found to vary markedly on account of the wave mode coupling…

Astrophysics · Physics 2009-11-13 S. A. Petrova

We investigate the polarization state dynamics of single photon pulse for optical fiber quantum communication channels. On the basis of a birefringence vector model in which amplitude and direction are both stochastic variables, Jones…

Quantum Physics · Physics 2009-09-01 Chang-hua Zhu , Chang-xing Pei , Dong-xiao Quan , Nan Chen , Yun-hui Yi

Observations of the five confirmed optical pulsars indicate that the peak emission scales according to the magnetic field strength at the light cylinder. To the accuracy that such low number allows we show that this gives further…

Astrophysics · Physics 2007-05-23 A. Shearer , A. Golden

It is now known that the emission from radio pulsars can vary over a wide range of timescales, from fractions of seconds to decades. However, it is not yet known if long- and short-term emission variability are caused by the same physical…

High Energy Astrophysical Phenomena · Physics 2019-08-28 Paul Brook , Aris Karastergiou , Simon Johnston

Polarizations of electromagnetic waves from distant galaxies are known to be correlated with the source orientations. These quantities have been used to search for signals of cosmological birefringence. We review and classify transformation…

Astrophysics · Physics 2009-10-30 John P. Ralston , Pankaj Jain