ALMA High-frequency Long Baseline Campaign in 2017: Band-to-band Phase Referencing in Submillimeter Waves

23 Mar 2020 Asaki Yoshiharu Maud Luke T. Fomalont Edward B. Phillips Neil M. Hirota Akihiko Sawada Tsuyoshi Barcos-Muñoz Loreto Richards Anita M. S. Dent William R. F. Takahashi Satoko Corder Stuartt Carpenter John M. Villard Eric Humphreys Elizabeth M.

In 2017, an Atacama Large Millimeter/submillimeter Array (ALMA) high-frequency long baseline campaign was organized to test image capabilities with baselines up to 16 km at submillimeter (submm) wavelengths. We investigated image qualities using ALMA receiver Bands 7, 8, 9, and 10 (285-875 GHz) by adopting band-to-band (B2B) phase referencing in which a phase calibrator is tracked at a lower frequency... (read more)

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