| Autor: |
Lobanov, Andrei P., Zensus, J. Anton, Cesarsky, Catherine, Diamond, Phillip J., Peck, A.B. |
| Zdroj: |
Exploring the Cosmic Frontier; 2006, p215-218, 4p |
| Abstrakt: |
The Submillimeter Array (SMA) is nearing completion on the summit of Mauna Kea and has begun science operations. The completed instrument will consist of eight 6-m diameter elements in recon.gurable arrays providing baselines from 7 to 500 m and resolutions of about 0.1 to 5 arcseconds. The full array will cover the atmospheric windows around 230, 345, 460, 650 and 850 GHz (1.3 to 0.3 millimeter wavelength) with a total bandwidth of 2GHz in each of 2 sidebands and high spectral resolution. The dedication took place in November 2003, and internal science proposals have been accepted for the 230 GHz and 345 GHz receivers since that time. We will report on exciting results that are becoming available as data using the 230 GHz and 345 GHz receivers during the commissioning phase of operations are reduced. The science topics explored with these early observations range from star formation and evolved stars in our Galaxy to imaging starburst regions in nearby galaxies and attempting to perform high precision astrometry on extremely high redshift submillimeter galaxies. In addition, phase closure at 682 GHz and 691 GHz was achieved in late 2002 using 3 antennas, and further test observations at these frequencies are ongoing. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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