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Flares detected in ALMA single-dish images of the Sun
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SYSNO ASEP 0571483 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Flares detected in ALMA single-dish images of the Sun Author(s) Skokić, I. (HR)
Benz, A. O. (CH)
Brajša, R. (HR)
Sudar, D. (HR)
Matkovic, F. (HR)
Bárta, Miroslav (ASU-R) RID, ORCIDNumber of authors 6 Article number A156 Source Title Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361
Roč. 669, January (2023)Number of pages 11 s. Publication form Online - E Language eng - English Country FR - France Keywords Sun ; flares ; chromosphere OECD category Astronomy (including astrophysics,space science) Method of publishing Open access Institutional support ASU-R - RVO:67985815 UT WOS 000923230500005 EID SCOPUS 85147091987 DOI 10.1051/0004-6361/202244532 Annotation The millimeter and submillimeter radiation of solar flares is poorly understood. Without spatial resolution, millimeter emission cannot be easily compared to flare emission in other wavelengths. Though the Atacama Large Millimeter-submillimeter Array (ALMA) offers sufficient resolution for the first time, ALMA cannot be used on demand to observe when a flare occurs, and when used as an interferometer, its field of view is smaller than an active region. We used readily available large-scale single-dish ALMA observations of solar millimeter flares and compared them to well-known features observed in other wavelengths. The properties of these other flare emissions, correlating in space and time, could then be used to interpret the millimeter brightenings and vice versa. The aim is to obtain reliable associations limited by the time and space resolution of single-dish observations. Ordinary interferometric ALMA observations require single-dish images of the full Sun for calibration. We collected such observations at 3 mm and 1 mm and searched for millimeter brightenings during times listed in a flare catalog. Workplace Astronomical Institute Contact Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0343107
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