Solar Science with the Atacama Large Millimeter/Submillimeter Array — A New View of Our Sun

Sven Wedemeyer, Tim Bastian, Roman Brajša, Hugh Hudson, Gregory Fleishman, Maria Loukitcheva, Bernhard Fleck, Eduard Kontar, Bart De Pontieu, Pavel Yagoubov, Sanjiv K. Tiwari, Roberto Soler, John Black, Patrick Antolin, Eamon Scullion, Stanislav Gunár, Nicolas Labrosse, Hans-Günter Ludwig, Arnold Benz, Stephen WhitePeter Hauschildt, John Gerard Doyle, Valery Nakariakov, Thomas Ayres, Petr Heinzel, Marian Karlický, Tom van Doorsselaere, Dale E. Gary, Constantine E. Alissandrakis, Alexander Nindos, Sami K. Solanki, Luc Rouppe van der Voort, Masumi Shimojo, Yoshiaki Kato, Teimuraz Zaqarashvili, Enrique Perez, Caius Lucius Selhorst, Miroslav Barta

Research output: Contribution to journalArticlepeer-review

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Abstract

The Atacama Large Millimeter/submillimeter Array (ALMA) is a new powerful tool for observing the Sun at high spatial, temporal, and spectral resolution. These capabilities can address a broad range of fundamental scientific questions in solar physics. The radiation observed by ALMA originates mostly from the chromosphere—a complex and dynamic region between the photosphere and corona, which plays a crucial role in the transport of energy and matter and, ultimately, the heating of the outer layers of the solar atmosphere. Based on first solar test observations, strategies for regular solar campaigns are currently being developed. State-of-the-art numerical simulations of the solar atmosphere and modeling of instrumental effects can help constrain and optimize future observing modes for ALMA. Here we present a short technical description of ALMA and an overview of past efforts and future possibilities for solar observations at submillimeter and millimeter wavelengths. In addition, selected numerical simulations and observations at other wavelengths demonstrate ALMA’s scientific potential for studying the Sun for a large range of science cases.
Original languageEnglish
Pages (from-to)1-73
Number of pages73
JournalSpace Science Reviews
Volume200
Issue number1
Early online date22 Dec 2015
DOIs
Publication statusPublished - Apr 2016

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