By Massimo Tarenghi (auth.), Rafael Bachiller, José Cernicharo (eds.)
ISBN-10: 1402069340
ISBN-13: 9781402069345
ISBN-10: 1402069359
ISBN-13: 9781402069352
Currently less than development within the Andean Altiplano, Northern Chile, the Atacama huge Millimeter Array (ALMA) is the main formidable astronomy facility below building. ALMA is a radio interferometer composed of fifty four antennas of 12 m diameter, and twelve 7 m antennas with approximately 6600 sq. meters of overall gathering quarter. at the start protecting the main attention-grabbing spectral wavelength levels from three to 0.3 mm, ALMA could be a progressive telescope aimed to unveil the main points of superstar and planet formation and to supply astronomy with the 1st exhaustive view of the darkish and youngest items of the Universe.
This booklet describes the big features of ALMA, the country of the undertaking, and so much particularly the medical clients with one of these targeted facility. The publication comprises entire experiences and up to date effects on such a lot sizzling themes of contemporary Astronomy (the formation and evolution of galaxies, the physics and chemistry of the interstellar medium, and the strategies of big name and planet formation) with clients to the progressive effects to be bought with ALMA. those themes, mentioned with unique emphasis on millimeter and sub-millimeter astronomy, are awarded by means of essentially the most world-wide reputed scientists of their fields.
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Additional info for Science with the Atacama Large Millimeter Array: A New Era for Astrophysics
Sample text
In Europe, it is funded by the European Southern Observatory (ESO) and Spain. In the bilateral project, ALMA construction and operations are led on behalf of North America by the National Radio Astronomy Observatory (NRAO) which is managed by Associated Universities, Inc. (AUI), and on behalf of Europe by ESO. A rebaselining process was carried out in 2005–2006. L. Wilson ( ) European Southern Observatory, K-Schwarzschild-Str. org 2 High level science goals related to continuum measurements One of the high level science goals of ALMA is the production of high quality images.
3 Response to extended emission For any interferometer, there is a ‘short spacings’ problem. That is, for ALMA (and all multiplying interferometers) the largest structure recorded is proportional to the closest spacing of two antennas. This value is given in the last 2 columns of Table 1. For ALMA there are also four 12 meter antennas which are used to record the total flux density of a source. With the 7 meter antenna array and the four 12 meter antennas of the Atacama Compact Array, ACA, extended structures can be measured.
The antennas can be moved (reconfigured) among 186 prepared antenna locations (see Fig. 4) to provide a range of spatial resolutions in the final astronomical images. Each station has a concrete foundation to support the antenna and provision for electrical power and fiber-optic based data communications. The antennas are moved by a pair of speciallydesigned rubber-tired antenna transporters currently under construction. 5 km in diameter (for the study of small, high surface brightness objects).
Science with the Atacama Large Millimeter Array: A New Era for Astrophysics by Massimo Tarenghi (auth.), Rafael Bachiller, José Cernicharo (eds.)
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