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Observing the Sun with the Atacama Large Millimeter/submillimeter Array – from continuum to magnetic fields

Published online by Cambridge University Press:  24 September 2020

Sven Wedemeyer Open the ORCID record for Sven Wedemeyer [Opens in a new window] ,
Mikolaj Szydlarski ,
Jaime de la Cruz Rodriguez  and
Shahin Jafarzadeh
Sven Wedemeyer
Affiliation:
Rosseland Centre for Solar Physics, University of Oslo, Postboks 1029 Blindern, N-0315 Oslo, Norway Institute of Theoretical Astrophysics, University of Oslo, Postboks 1029 Blindern, N-0315 Oslo, Norway
Mikolaj Szydlarski
Affiliation:
Rosseland Centre for Solar Physics, University of Oslo, Postboks 1029 Blindern, N-0315 Oslo, Norway Institute of Theoretical Astrophysics, University of Oslo, Postboks 1029 Blindern, N-0315 Oslo, Norway
Jaime de la Cruz Rodriguez
Affiliation:
Institute for Solar Physics, Dept. of Astronomy, Stockholm University, Albanova University Center, SE-10691 Stockholm, Sweden
Shahin Jafarzadeh
Affiliation:
Rosseland Centre for Solar Physics, University of Oslo, Postboks 1029 Blindern, N-0315 Oslo, Norway Institute of Theoretical Astrophysics, University of Oslo, Postboks 1029 Blindern, N-0315 Oslo, Norway
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Abstract

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The Atacama Large Millimeter/submillimeter Array offers regular observations of our Sun since 2016. After an extended period of further developing and optimizing the post-processing procedures, first scientific results are now produced. While the first observing cycles mostly provided mosaics and time series of continuum brightness temperature maps with a cadence of 1-2s, additional receiver bands and polarization capabilities will be offered in the future. Currently, polarization capabilities are offered for selected receiver bands but not yet for solar observing. An overview of the recent development, first scientific results and potential of solar magnetic field measurements with ALMA will be presented.

Keywords

Sun: atmosphereSun: chromosphereSun: radio radiationradiation mechanisms: thermalmagnetic fieldspolarizationtechniques: interferometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S354: Solar and Stellar Magnetic Fields: Origins and Manifestations , June 2019 , pp. 24 - 37
Copyright
© International Astronomical Union 2020

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