Solar observing with the Atacama large millimeter-submillimeter array

0564021 - ASÚ 2023 CH eng J - Journal Article
Bastian, T.S. - Shimojo, M. - Bárta, Miroslav - White, S. M. - Iwai, K.
Solar observing with the Atacama large millimeter-submillimeter array.
Frontiers in Astronomy and Space Sciences. Roč. 9, October (2022), č. článku 977368. E-ISSN 2296-987X
R&D Projects: GA ČR(CZ) GC20-09922J; GA MŠMT(CZ) LM2015067
Institutional support: RVO:67985815
Keywords : instrumentation * millimeter-submillimeter wavelengths * solar observing
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 3, year: 2022
Method of publishing: Open access

The Atacama Large Millimeter-submillimeter Array (ALMA), sited on the high desert plains of Chajnantor in Chile, has opened a new window onto solar physics in 2016 by providing continuum observations at millimeter and sub-millimeter wavelengths with an angular resolution comparable to that available at optical (O), ultraviolet (UV), extreme ultraviolet (EUV), and X-ray wavelengths, and with superior time resolution. In the intervening years, progress has been made testing and commissioning new observing modes and capabilities, in developing data calibration strategies, and in data imaging and restoration techniques. Here we review ALMA current solar observing capabilities, the process by which a user may propose to use the instrument, and summarize the observing process and work flow. We then discuss some of the challenges users may encounter in imaging and analyzing their data. We conclude with a discussion of additional solar observing capabilities and modes under consideration that are intended to further exploit the unique spectral coverage provided by ALMA.
Permanent Link: https://hdl.handle.net/11104/0337578