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VLT polarimetry observations of the middle-aged pulsar PSR B0656+14
(EDP Sciences, 2015-11-02)
Context. Optical polarisation measurements are key tests for different models of the pulsar magnetosphere. Furthermore, comparing the relative orientation of the phase-averaged linear polarisation direction and the pulsar ...
Circular polarization of synchrotron radiation in high magnetic fields
(Oxford University Press, 2015-04-17)
The general model for incoherent synchrotron radiation has long been known, with the first theory being published by Westfold in 1959 and continued by Westfold and Legg in 1968. When this model was first developed, it was ...
The Galway astronomical Stokes polarimeter: an all-Stokes optical polarimeter with ultra-high time resolution
(Springer Verlag, 2013-06-28)
Many astronomical objects emit polarised light, which can give information both about their source mechanisms, and about (scattering) geometry in their source regions. To date (mostly) only the linearly polarised components ...
An investigation of the Eigenvalue Calibration Method (ECM) using GASP for non-imaging and imaging detectors
(Springer Verlag, 2016-02)
Polarised light from astronomical targets can yield a wealth of information about their source radiation mechanisms, and about the geometry of the scattered light regions. Optical observations, of both the linear and ...
The study of neutron star magnetospheres with LOFT
(2015)
The Large Observatory for X-ray Timing, LOFT, is designed to perform fast X-ray timing and spectroscopy
with uniquely large throughput (Feroci et al. 2014). LOFT focuses on two fundamental questions of
ESA’s Cosmic Vision ...
A recent change in the optical and gamma ray polarization of the Crab nebula and pulsar
(Oxford journals, 2015-12-31)
We report on observations of the polarization of optical and γ-ray photons from the Crab nebula and pulsar system using the Galway Astronomical Stokes Polarimeter (GASP), the Hubble Space Telescope, Advanced Camera for ...
High Time Resolution Astrophysics in the Extremely Large Telescope Era : White Paper
(2010)
High Time Resolution Astrophysics (HTRA) concerns itself with observations on short scales normally defined as being lower than the conventional read-out time of a CCD. As such it is concerned with condensed objects such ...
Dark spot, Spiral waves and the SW Sex behaviour: it is all about UX Ursae Majoris
(2010)
We present an analysis of time-resolved, medium resolution optical spectroscopic observations of UX UMa in the blue (3920-5250 A) and red (6100-7200 A) wavelength ranges, that were obtained in April 1999 and March 2008 ...
Discovery of a faint X-ray counterpart and of a parsec-long X-ray tail for the middle-aged, gamma-ray only pulsar PSR J0357+3205
(2011)
The Large Area Telescope (LAT) onboard the Fermi satellite opened a new era for pulsar astronomy, detecting gamma-ray pulsations from more than 60 pulsars, ~40% of which are not seen at radio wavelengths. One of the most ...
Investigations of the magnetospheric plasma distribution in the vicinity of a pulsar - I Basic formulation
(2008)
The magnetospheric plasma distribution in the vicinity of a pulsar at various inclination angles is investigated using a new relativistic, parallel 3D Particle-In-Cell (PIC) code DYMPHNA3D. DYMPHNA3D uses a superposition ...