Image Simulation for Mingantu Ultrawide Spectral Radioheliograph in the Decimetre Wave Range. (5th June 2015)

• Record Type: Journal Article
• Authors: Du, Jing; Yan, Yihua; Wang, Wei; Liu, Donghao
• Is Part Of: Publications of the Astronomical Society of Australia. Volume 32(2015)
• Publication Date: 2015-06-05
• Subjects: instrumentation: interferometers – techniques: image processing – Sun: radio radiation; Astronomy -- Periodicals; Southern sky (Astronomy) -- Periodicals; Astrophysics -- Periodicals; Periodicals; 520.5
• DOI: 10.1017/pasa.2015.24
• Languages: English
• ISSNs: 1323-3580

Abstract

Abstract: The MUSER is a solar-dedicated radio interferometric array, which will observe the Sun over a wide range of radio frequencies (0.4–15 GHz), and make high time, space and frequency resolution images of the Sun simultaneously. MUSER is located in Mingantu Station in Inner Mongolia of China, which is about 400 kilometres away from Beijing. MUSER consists of two arrays: MUSER-I and MUSER-II. MUSER-I contains 40 antennas with 4.5-m aperture operating at 400 MHz to 2 GHz. MUSER-II contains 60 antennas with 2-m aperture operating at 2 to 15 GHz. Currently, MUSER has already been established and entered into the stage of test observation. This work is focus on the imaging performance of MUSER-I. This paper introduces MUSER-I briefly, presents the analysis of the array configurations, and evaluates the image quality mainly using the dynamic range, fidelity index, and the peak signal-to-noise ratio, also make some actual solar model simulations with CASA, the results will be shown below.