Mathematics – Logic
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21921706s&link_type=abstract
American Astronomical Society, AAS Meeting #219, #217.06
Mathematics
Logic
Scientific paper
Recent theoretical work and data gathered from ground-based astrophysics experiments have shown unambiguously that all features of pulsar emission can be explained in terms of supraluminal (faster than light in vacuum) polarization currents whose distribution pattern follows a circular orbit. Using the supraluminal model of pulsar emission, it was possible to explain quantitatively several observables from the Crab pulsar, including the spacing and the widths of the emission bands at frequencies around 8 GHz, the maximum of the radiation spectrum, and the overall continuum spectrum across 16 orders of magnitude in frequency. Subsequently, successful quantitative fits were carried out for 8 other pulsars and a related supraluminal model reproduced the general form of pulsar Stokes parameters. Here, we demonstrate a further prediction for rotating supraluminal sources; that there is a component of the pulsar's flux that decays as 1/distance, rather than as the conventional inverse square law. To this end we will employ a Maximum Likelihood Method (MLM) analysis of observational data from 971 pulsars in the Parkes Multibeam Survey. The MLM, derived from a widely accepted approach originally used by George Efstathiou to study the red shifts of very distant objects, is carried out to circumvent the significant Malmquist bias due to the increasing non-detection of weaker pulsars. We will then apply the results of this analysis to Supernova 1987A and show how our model can account for the fine details of its bipolarity, ``Mystery Spot'', and early light curve, as well as for the apparent anomalous dimming with distance of many Type Ia SNe in general, thereby questioning their usefulness as "standard candles” in cosmological interpretation.
Ardavan Arzhang
Ardavan Houshang
Middleditch John
Schmidt Andrea C.
Singleton John
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