Science development study for the Atacama Large Aperture Submillimeter Telescope (AtLAST): Solar and stellar observations

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dc.contributor.authorWedemeyer S.
dc.contributor.authorBarta M.
dc.contributor.authorBrajsa R.
dc.contributor.authorChai Y.
dc.contributor.authorCosta J.
dc.contributor.authorGary D.
dc.contributor.authorGimenez de Castro G.
dc.contributor.authorGunar S.
dc.contributor.authorFleishman G.
dc.contributor.authorHales A.
dc.contributor.authorHudson H.
dc.contributor.authorKirkaune M.
dc.contributor.authorMohan A.
dc.contributor.authorMotorina G.
dc.contributor.authorPellizzoni A.
dc.contributor.authorSaberi M.
dc.contributor.authorSelhorst C.L.
dc.contributor.authorSimoes P.J.A.
dc.contributor.authorShimojo M.
dc.contributor.authorSkokic I.
dc.contributor.authorSudar D.
dc.contributor.authorMenezes F.
dc.contributor.authorWhite S.M.
dc.contributor.authorBooth M.
dc.contributor.authorKlaassen P.
dc.contributor.authorCicone C.
dc.contributor.authorMroczkowski T.
dc.contributor.authorCordiner M.A.
dc.contributor.authorDi Mascolo L.
dc.contributor.authorJohnstone D.
dc.contributor.authorvan Kampen E.
dc.contributor.authorLee M.
dc.contributor.authorLiu D.
dc.contributor.authorMaccarone T.
dc.contributor.authorOrlowski-Scherer J.
dc.contributor.authorSaintonge A.
dc.contributor.authorSmith M.
dc.contributor.authorThelen A.E.
dc.date.accessioned2024-09-01T06:16:17Z
dc.date.available2024-09-01T06:16:17Z
dc.date.issued2024
dc.description.abstractCopyright: © 2024 Wedemeyer S et al.Observations at (sub-)millimeter wavelengths offer a complementary perspective on our Sun and other stars, offering significant insights into both the thermal and magnetic composition of their chromospheres. Despite the fundamental progress in (sub-)millimeter observations of the Sun, some important aspects require diagnostic capabilities that are not offered by existing observatories. In particular, simultaneously observations of the radiation continuum across an extended frequency range would facilitate the mapping of different layers and thus ultimately the 3D structure of the solar atmosphere. Mapping large regions on the Sun or even the whole solar disk at a very high temporal cadence would be crucial for systematically detecting and following the temporal evolution of flares, while synoptic observations, i.e., daily maps, over periods of years would provide an unprecedented view of the solar activity cycle in this wavelength regime. As our Sun is a fundamental reference for studying the atmospheres of active main sequence stars, observing the Sun and other stars with the same instrument would unlock the enormous diagnostic potential for understanding stellar activity and its impact on exoplanets. The Atacama Large Aperture Submillimeter Telescope (AtLAST), a single-dish telescope with 50m aperture proposed to be built in the Atacama desert in Chile, would be able to provide these observational capabilities. Equipped with a large number of detector elements for probing the radiation continuum across a wide frequency range, AtLAST would address a wide range of scientific topics including the thermal structure and heating of the solar chromosphere, flares and prominences, and the solar activity cycle. In this white paper, the key science cases and their technical requirements for AtLAST are discussed.
dc.description.volume4
dc.identifier.doi10.12688/openreseurope.17453.1
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/39271
dc.relation.ispartofOpen Research Europe
dc.rightsAcesso Restrito
dc.subject.otherlanguagemagnetic fields
dc.subject.otherlanguageprominences
dc.subject.otherlanguagesolar-terrestrial relations
dc.subject.otherlanguageSun activity
dc.subject.otherlanguageSun atmosphere
dc.subject.otherlanguageSun filaments
dc.subject.otherlanguageSun flares
dc.subject.otherlanguagesunspots
dc.titleScience development study for the Atacama Large Aperture Submillimeter Telescope (AtLAST): Solar and stellar observations
dc.typeArtigo
local.scopus.citations1
local.scopus.eid2-s2.0-85201392402
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85201392402&origin=inward
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