2008.07.28
Radio spectrum observed with the first antenna
This is an analysis result of the radio spectrum of CS molecular gases (rotational transition J=3-2, 146.969026 GHz) in a celestial object called Orion KL, whi…
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2008.07.28
This is an analysis result of the radio spectrum of CS molecular gases (rotational transition J=3-2, 146.969026 GHz) in a celestial object called Orion KL, whi…
2008.05.31
From May 25 through 30, the Japan Geoscience Union Meeting 2008 was held in the international exhibition hall at Makuhari Messe, and NAOJ set up a booth featur…
2008.05.14
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 in…
2008.04.15
The first four 12-m antennas of ALMA-Japan constructed at the ALMA Operations Support Facility in Chile.
2008.04.01
From May 1, Tetsuo Hasegawa, Professor at NAOJ, will be Interim ALMA Project Manager at the Joint ALMA Office (JAO). On April 1, prior to the assignment, he wa…
2008.03.18
Result of the Initial Testing of the Japanese ACA 12-m Antenna to be Delivered to ALMA First Radio Image of the Moon Taken with an ACA Antenna (Left: Optical i…
2008.02.27
In Mitaka, the Preliminary Design Review of Band-10 Cartridge Receiver (787-950 GHz) developed by Japan was held on February 26 and 27. The Band-10 Team of NAO…
2008.02.27
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 …
2008.02.15
From February 7 through 15, the first receiver was installed into the ACA antenna. To safely install the receiver weighing about 1 ton, we had to make a delibe…
2007.12.19
ACA Correlator and its Monitor and Control System made by Fujitsu Co. Ltd. were installed at ALMA Array Operations Site (alt. 5000 m).
2007.12.06
The characters “ACA” (Atacama Compact Array) were drawned by photographing Jupiter with antenna moving. One of the first three Japanese ACA antenna…
2007.10.12
Japan is responsible for manufacturing 16 antennas in total for ALMA. The first three Japanese antennas assembled looked very beautiful.
2007.10.04
At the ALMA Operations Support Facility in Chile, the first driving test of the Japanese ACA 12-m Antenna #1 was carried out. The antenna monitor and control s…
2007.09.19
From September 18 through 19, the ALMA Head of Administration Meeting was held at NAOJ in Mitaka, Tokyo, jointly by the Joint ALMA Office (JAO) in Chile and th…
2007.09.10
From September 10 through 12, a three-day joint external review of the ALMA project was held in Santiago, Chile. From Japan, 7 people attended the meeting: Nob…
2007.07.23
Three Japanese 12-meter antennas were shipped from Tamashima Port in Okayama, Japan to Mejillones Port in northern Chile, after completing the manufacturing pr…
2007.07.11
From July 9 through 11, an internal user test of CASA (Common Astronomical Software Applications) was conducted in the headquarters of European Southern Observ…
2007.06.14
The Preliminary Design Review (PDR) for the nutator was held on June 13 and 14 at Academia Sinica Institute of Astronomy and Astrophysics (ASIAA) in Taiwan. Th…
2007.05.19
From May 19 through 24, the Japan Geoscience Union Meeting 2007 is being held at Makuhari Messe International Convention Complex. Along with other participatin…
The ACA Spectrometer development team has received the NAOJ Director General’s Award in the Technical and Development C…
An international research team led by Professor Ken-ichi Tadaki of Hokkai-Gakuen University has made a groundbreaking d…
This article is based on the press release issued by the Kavli Institute for the Physics and Mathematics of the Univers…