File:ALMA first fringes at Chajnantor.jpg

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English: The first two ALMA antennas linked together as an interferometer on the 5000-metre altitude plateau of Chajnantor. These antennas were used to make the first interferometric measurements of radio signals — so-called “fringes” — of an astronomical source from this site. This is an important technical step for ALMA, as it used a full suite of the production equipment, including two of the 12-metre diameter antennas, and sophisticated electronic systems for receiving and correlating the signals.
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来源 ESO
作者 ALMA (ESO/NAOJ/NRAO), A. Quintana/J. Olivares (ALMA)

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当前2009年11月17日 (二) 10:342009年11月17日 (二) 10:34版本的缩略图2,871 × 1,545（860 KB）Originalwana（留言 | 贡献）{{Information |Description={{en|1=The first two ALMA antennas linked together as an interferometer on the 5000-metre altitude plateau of Chajnantor. These antennas were used to make the first interferometric measurements of radio signals — so-called

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