Statistics
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..921..419s&link_type=abstract
THE FIRST GLAST SYMPOSIUM. AIP Conference Proceedings, Volume 921, pp. 419-420 (2007).
Statistics
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Pulsars, Radiation Mechanisms, Polarization, Magnetic And Electric Fields, Polarization Of Starlight
Scientific paper
We present the optical polarization of the Crab pulsar (P = 33 ms) and its environment based on 14 hours (selected out of 25 hours) of observations with the high-speed photo-polarimeter Optical Pulsar TIMing Analyzer (OPTIMA). Time resolution as short as 10 μsec and high statistics allow the derivation of details in the degree (p) and angle (θ) of linear polarization never resolved before. The phase resolved optical polarization shows surprising correlations (bends) in the degree and angle of polarization with the phase structure at radio wavelengths. This subtle connection between presumed coherent and non-coherent emissions, which have also been detected between the giant radio pulses and the optical intensity of Crab, will require more elaborate theoretical models than those currently available in the literature [e.g. 2,3,4,5]. The cases of polarized pulsars (and e.g. blazars) show that mapping optical polarization could serve as a tool to identify counterparts for unidentified GLAST sources.
Kanbach Gottfried
Stefanescu Alexander
Słowikowska Agnieszka
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