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Proceedings Paper

ALMA band 10 (787-950 GHz) first astronomical fringes
Author(s): 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
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Paper 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.

Paper Details

Date Published: 22 July 2014
PDF: 8 pages
Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91454I (22 July 2014); doi: 10.1117/12.2054966
Show Author Affiliations
Shin'ichiro Asayama, Joint ALMA Observatory (Chile)
National Astronomical Observatory of Japan (Japan)
Lewis B. G. Knee, National Research Council Canada (Canada)
Paolo G. Calisse, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
Juan P. Colque, Joint ALMA Observatory (Chile)
Cristian M. Lopez, Joint ALMA Observatory (Chile)
Theodoros Nakos, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
Neil M. Phillips, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
Kurt H. Plarre, Joint ALMA Observatory (Chile)
Matias C. Radiszcz, Joint ALMA Observatory (Chile)
Giorgio Siringo, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
Nicholas D. Whyborn, Joint ALMA Observatory (Chile)
European Southern Observatory (Chile)
Hiroshi Yatagai, Joint ALMA Observatory (Chile)
National Astronomical Observatory of Japan (Japan)


Published in SPIE Proceedings Vol. 9145:
Ground-based and Airborne Telescopes V
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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