These are radio images of the sun, which were obtained using the first ACA 12-m antenna manufactured by Japan. In these images, white color indicates strong intensity of radio waves, while darker color lower intensity. Since the pattern changes day by day, we can find that these images show the daily rotation and the surface structure of the sun. These high quality radio images were obtained by an observation for 20 minutes using the high-performance antenna.
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2025 6.26
Development of Total Power GPU Spectrometer was approved by ALMA Board
In April 2025, the ALMA Board approved the development of a new spectrometer for the Morita Array (*) designed and deve…
2025 6.24
New Super-resolution Imaging Reveals the First Step of Planet Formation after Star Birth
A research team led by Ayumu Shoshi of Kyushu University and the Academia Sinica Institute of Astronomy and Astrophysic…
2025 6.3
Joint ALMA Observatory Open Day 2025
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On March 21, 2025, NAOJ participated in the public event "Open Day 2025" held at the Joint ALMA Observatory in Santiago…