Observations of Interplanetary Scintillation (IPS) Using the Mexican Array Radio Telescope (MEXART)

Details Observations of Interplanetary Scintillation (IPS) Using the Mexican Array Radio Telescope (MEXART) Observations of Interplanetary Scintillation (IPS) Using the Mexican Array Radio Telescope (MEXART)

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010soph..265..309m&link_type=abstract

Solar Physics, Volume 265, Issue 1-2, pp. 309-320

Physics

1

Interplanetary Scintillations, Interplanetary Shocks, Cmes, Remote Sensing, Radiotelescopes

Scientific paper

The Mexican Array Radio Telescope (MEXART) consists of a 64×64 (4096) full-wavelength dipole antenna array, operating at 140 MHz, with a bandwidth of 2 MHz, occupying about 9660 square meters (69 m × 140 m) ( http://www.mexart.unam.mx ). This is a dedicated radio array for Interplanetary Scintillation (IPS) observations located at latitude 19°48'N, longitude 101°41'W. We characterize the performance of the system. We report the first IPS observations with the instrument, employing a Butler Matrix (BM) of 16×16 ports, fed by 16 east - west lines of 64 dipoles (1/4 of the total array). The BM displays a radiation pattern of 16 beams at different declinations (from -48, to +88 degrees). We present a list of 19 strong IPS radio sources (having at least 3 σ in power gain) detected by the instrument. We report the power spectral analysis procedure of the intensity fluctuations. The operation of MEXART will allow us a better coverage of solar wind disturbances, complementing the data provided by the other, previously built, instruments.

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