THE ALMA PROJECT
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2009
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| _version_ | 1876466074886602752 |
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| author | L.-Å. Nyman |
| author_facet | L.-Å. Nyman |
| contents | THE ALMA PROJECT L.-Å. Nyman ALMA Project Física, Astronomía y Matemáticas Telescopes The Atacama Large Millimeter/Submillimeter Array (ALMA) is an international millimeter-wavelength radio telescope under construction in the Atacama Desert of northern Chile. ALMA will be situated on a high-altitude site at 5000 m elevation which provides excellent atmospheric transmission over the instrument wavelength range of 0.3 to 9 mm. ALMA will be comprised of two key observing components a main array of fty 12 m diameter antennas arranged in a multiple congurations ranging in size from 0.15 to 18 km, and a set of four 12 m and twelve 7 m antennas operating in a compact array 50 m in diameter (known as the Atacama Compact Array, or ACA), providing both interferometric and total-power astronomical information. High-sensitivity dual-polarization 8 GHz-bandwidth spectral-line and continuum measurements between all antennas will be available from two exible digital correlators. At the shortest planned wavelength and largest conguration, the angular resolution of ALMA will be 0.00500. The instrument will use superconducting (SIS) mixers to provide the lowest possible receiver noise contribution, and special-purpose water vapor radiometers to assist in calibration of atmospheric phase distortions. Early science observations are expected in 2010, with full operations in 2012. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57115758103 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.35 |
| format | Artículo científico |
| id | redalyc_57115758103 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | THE ALMA PROJECT L.-Å. Nyman Física, Astronomía y Matemáticas Telescopes THE ALMA PROJECT L.-Å. Nyman ALMA Project Física, Astronomía y Matemáticas Telescopes The Atacama Large Millimeter/Submillimeter Array (ALMA) is an international millimeter-wavelength radio telescope under construction in the Atacama Desert of northern Chile. ALMA will be situated on a high-altitude site at 5000 m elevation which provides excellent atmospheric transmission over the instrument wavelength range of 0.3 to 9 mm. ALMA will be comprised of two key observing components a main array of fty 12 m diameter antennas arranged in a multiple congurations ranging in size from 0.15 to 18 km, and a set of four 12 m and twelve 7 m antennas operating in a compact array 50 m in diameter (known as the Atacama Compact Array, or ACA), providing both interferometric and total-power astronomical information. High-sensitivity dual-polarization 8 GHz-bandwidth spectral-line and continuum measurements between all antennas will be available from two exible digital correlators. At the shortest planned wavelength and largest conguration, the angular resolution of ALMA will be 0.00500. The instrument will use superconducting (SIS) mixers to provide the lowest possible receiver noise contribution, and special-purpose water vapor radiometers to assist in calibration of atmospheric phase distortions. Early science observations are expected in 2010, with full operations in 2012. 2009 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57115758103 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.35 |
| title | THE ALMA PROJECT |
| topic | Física, Astronomía y Matemáticas Telescopes |
| url | https://www.redalyc.org/articulo.oa?id=57115758103 |