Surface adjustment of a 12-m antenna is conducted using a manlift. The smoothness of the surface is measured by radio holography to achieve a surface accuracy on a micron scale, equivalent to the thickness of a plastic kitchen wrap. We need flexibility of a body because we have to access the antenna in an improper body posture [texts provided by Masato Ishiguro].
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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…
2025 5.27
ALMA Booth at Japan Geoscience Union Meeting 2025
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NAOJ ALMA is exhibiting a booth at the Japan Geoscience Union (JpGU) Meeting every year. This year’s event was held fro…
2025 5.22
A Fierce Storm in a Giant Barred Spiral Galaxy 11 Billion Years Ago
A research team led by Shuo Huang (NAOJ and Nagoya University) has observed a massive and extremely active barred spira…