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

Shin'ichiro Asayama; Lewis B. G. Knee; Paolo G. Calisse; Juan P. Colque; Cristian M. Lopez; Theodoros Nakos; Neil M. Phillips; Kurt H. Plarre; Matias C. Radiszcz; Giorgio Siringo; Nicholas D. Whyborn; Hiroshi Yatagai

doi:10.1117/12.2054966

22 July 2014 ALMA band 10 (787-950 GHz) first astronomical fringes

Shin'ichiro Asayama, Lewis B. G. Knee, Paolo G. Calisse, Juan P. Colque, Cristian M. Lopez, Theodoros Nakos, Neil M. Phillips, Kurt H. Plarre, Matias C. Radiszcz, Giorgio Siringo, Nicholas D. Whyborn, Hiroshi Yatagai

Author Affiliations +

Proceedings Volume 9145, Ground-based and Airborne Telescopes V; 91454I (2014) https://doi.org/10.1117/12.2054966
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

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.

Citation Download Citation

Shin'ichiro Asayama, Lewis B. G. Knee, Paolo G. Calisse, Juan P. Colque, Cristian M. Lopez, Theodoros Nakos, Neil M. Phillips, Kurt H. Plarre, Matias C. Radiszcz, Giorgio Siringo, Nicholas D. Whyborn, and Hiroshi Yatagai "ALMA band 10 (787-950 GHz) first astronomical fringes", Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91454I (22 July 2014); https://doi.org/10.1117/12.2054966

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