Visit ASIAA Homepage Deadline: February 15, 2016
M87 Workshop: Towards the 100th Anniversary of the Discovery of Cosmic Jets
May 23-27, 2016
Taipei, Taiwan

Poster Presentation

MeqSilhouette : A mm-VLBI simulator

Author(s): Tariq Blecher, Roger Deane, Oleg Smirnov, Gianni Bernardi (RHODES + SKA SA)

Presenter: Tariq Blecher (RHODES UNIVERSITY + SKA SA)

A global mm-VLBI network enables the finest angular resolution in astronomy at tens of micro arcseconds. The science possibilities however are limited by signal corruptions which take place in the troposphere, interstellar medium and within the stations themselves. In addition sources can be variable, violating the usual static sky assumption of interferometry. In this paper we develop an observation simulator in order to map out the realistic scientific potential in the field, research calibration and parameter estimation strategies and optimise observations.The pipeline corrupts and 'observes' full polarisation, variable sources. The corruptions take the form of kolmogorov phase screens, flux dimming and increased noise. We make use of the Atmospheric Transmission Model code (Pardo et al, 2001) for realistic weather modelling and MeqTrees for UV sampling.

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