ALMA band 10 (787-950 GHz) first astronomical fringes

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1117/12.2054966
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Name affiliation
  1. National Research Council of Canada. National Science Infrastructure
FormatText, Article
Proceedings titleGround-Based and Airborne Telescopes V
Series titleProceedings of SPIE; no. 9145
ConferenceGround-Based and Airborne Telescopes V, June 22-27, 2014
ISSN0277-786X
1996-756X
ISBN9780819496133
Article number91454I
SubjectAstrophysics; Interferometers; Interferometry; Atacama Large Millimeter/sub-millimeter Array (ALMA); Frequency receivers; Power Optimization; Radio interferometers; SIS mixers; Submillimeter astrophysics; Submillimeters; Airborne telescopes
Abstract
The Atacama Large Millimeter/submillimeter Array (ALMA) Band 10 receiver covering 787 to 950 GHz is the highest frequency receiver of the ten bands envisioned for the ALMA Front End system. The Band 10 receivers have been undergoing installation and commissioning since 2012. After the Band 10 receiver tuning scripts (Josephson currents suppression, LO power optimization) and operation procedures had been developed and implemented, astronomical verification procedures (radio pointing, focus, beam squint, and end-to-end spectroscopic verification) were established in single dish mode at the ALMA Operations Support Facility (OSF; 2900 m elevation). Subsequently, the first Band 10 astronomical fringes were achieved at the Array Operations Site in October 2013 (AOS; 5000 m elevation). This is the highest frequency ever achieved by a radio interferometer and opens up a new window into submillimeter astrophysics.
Publication date
PublisherSPIE
LanguageEnglish
Peer reviewedYes
NPARC number21275590
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