A first look at the submillimeter Sun with ALMA

@article{Alissandrakis2022AFL,
  title={A first look at the submillimeter Sun with ALMA},
  author={C. E. Alissandrakis and Timothy S. Bastian and Alexander Nindos},
  journal={Astronomy \& Astrophysics},
  year={2022}
}
We present the first full-disk solar images obtained with the Atacama Large Millimeter / submillimeter Array (ALMA) in Band 7 (0.86mm; 347GHz). In spite of the low spatial resolution (21 (cid:48)(cid:48) ), several interesting results were obtained. During our observation, the sun was practically devoid of active regions. Quiet Sun structures on the disk are similar to those in Atmospheric Imaging Assembly images at 1600Å and 304Å, after the latter are smoothed to the ALMA resolution, as noted… 

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Solar observing with the Atacama large millimeter-submillimeter array

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References

Radio emission of the sun and planets