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- European Southern ObservatoryCL197 papers
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6 papers · 2 filters
New methods for ALMA angular-scale based observation scheduling, quality assessment, and beam shaping
Dirk Petry, María Díaz Trigo, Rüdiger Kneissl +2
Up to now, the completion of an ALMA interferometric observation is determined based on the achievement of a given shape and size of the synthesized beam and the noise RMS in the r…
ALMA High-frequency Long-baseline Campaign in 2017: A Comparison of the Band-to-band and In-band Phase Calibration Techniques and Phase-calibrator Separation Angles
Luke T. Maud, Yoshiharu Asaki, Edward B. Fomalont +9
The Atacama Large millimeter/submillimeter Array (ALMA) obtains spatial resolutions of 15 to 5 milli-arcsecond (mas) at 275-950GHz (0.87-0.32mm) with 16km baselines. Calibration at…
ALMA Band-to-band Phase Referencing: Imaging Capabilities on Long Baselines and High Frequencies
Yoshiharu Asaki, Luke T. Maud, Edward B. Fomalont +8
High-frequency long-baseline experiments with the Atacama Large Millimeter/submillimeter Array were organized to test the high angular resolution imaging capabilities in the submil…
Characterizing the accuracy of ALMA linear-polarization mosaics
Charles L. H. Hull, Paulo C. Cortes, Valentin J. M. Le Gouellec +9
We characterize the accuracy of linear-polarization mosaics made using the Atacama Large Millimeter/submillimeter Array (ALMA). First, we observed the bright, highly linearly polar…
The ALMA Development Program: Roadmap to 2030
John Carpenter, Daisuke Iono, Francisca Kemper +1
The Atacama Large Millimeter/submillimeter Array (ALMA) is the premier telescope for sensitive, high-resolution observations at millimeter and submillimeter wavelengths. The array…
DESHIMA on ASTE: On-sky Responsivity Calibration of the Integrated Superconducting Spectrometer
Tatsuya Takekoshi, Kenichi Karatsu, Junya Suzuki +36
We are developing an ultra-wideband spectroscopic instrument, DESHIMA (DEep Spectroscopic HIgh-redshift MApper), based on the technologies of an on-chip filter-bank and Microwave K…