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From September 13 through 14 (Chilean Time), an interferometer test was conducted with a Band 8 receiver developed by NAOJ and three Japanese 7-m antennas, and…

2012.08.01

Successful Interferometer Test with Band 4 Receiver

On July 31(Chile Time), interference fringes were successfully detected in an interferometer test with Band 4 receivers at the Operations Support Facility (OSF…

2012.06.05

ALMA Telescope Upgrade to Power New Science

Before its construction is even completed, the new ALMA (Atacama Large Millimeter/submillimeter Array) telescope is embarking on an upgrade that will help astr…

2012.05.29

First Test Polarization Observation with ACA Antennas and ACA Correlator

On April 29 (Chilean time), we conducted a test polarization observation using five Japanese 7-m ACA (Atacama Compact Array) antennas and a Japanese ACA correl…

2012.05.02

Successful Interferometer Test with Two Japanese Antennas 1966 m away

On the night of April 28 (Chilean time), interference fringes were successfully detected in an interferometer test using two Japanese antennas at a distance of…

2012.03.28

Successful Interferometer Test with Band 8 Receiver

On March 18, 2012, an interferometer test was conducted at the Array Operations Site (AOS) at 5000 m asl using two Japanese 7-m antennas equipped with the Band…

2011.11.22

Packing of Band 4 and Band 8 Receivers

One Band 4 and one Band 8 receivers were packed at the NAOJ Advanced Technology Center in Mitaka on November 8, and sent by air from Narita to Washington on No…

2011.10.03

ALMA Opens Its Eyes

Tags: ALMA Discoveries Press Releases ALMA Technology Cosmic Mysteries

The most powerful millimeter/submillimeter-wavelength telescope in the world opens for business and reveals its first image Humanity’s most complex grou…

2011.09.02

Successful Interferometer Test with Japanese 7-m and 12-m Antennas at AOS

On September 2, an interferometer test was conducted with the first Japanese 7-m and first 12-m antennas at the Array Operations Site (AOS) at 5000 m asl and i…

2011.08.11

Successful Interferometer Test with Two Japanese 7-m Antennas

On August 11, an interferometer test using two Japanese 7-m antennas was conducted at the Operations Support Facility (OSF) at 2900 m asl and interference frin…

2011.08.11

Successful Interferometer Test with Sixteen 12-m Antennas

On August 6, an interferometer test was conducted at the Array Operations Site (AOS) at 5000 m asl and fringes of 120 baselines were successfully obtained with…

2011.07.22

Band 8 Manufacturing Readiness Review (MRR)

On June 29, the Manufacturing Readiness Review (MRR) for Band 8 (one of the three receiver cartridges to be developed and manufactured by Japan) was held at t…

2011.06.06

Successful Interferometer Test with Japanese 7-m antenna and 12-m antenna

On May 30, radio waves emitted by a variable star VX Sagittarii were collected by a Japanese 7-m antenna and a 12-m antenna, and interference fringes were suc…

2011.04.26

First Successful Interferometer Test with Two Japanese Antennas

On March 10, 2011, at the Operations Support Facility (OSF) at 2900 m asl., radio waves emitted by the Sun were collected by two 12-m Japanese antennas and in…

2010.11.12

Development of the reference light source with the world highest quality - successful generation of optical signals with high stability, accuracy, and speed -

The National Institute of Information and Communications Technology (NICT) and the National Astronomy Observatory of Japan (NAOJ) have successfully developed a…

2010.07.30

Japanese ALMA Receivers Received the First Spectrum

Two different types of the receivers Japan developed for ALMA (Atacama Large Millimeter/submillimeter Array) successfully received the first spectrum from the …

2010.01.05

Successful Three-Antenna Interferometry at ALMA 5000-meter Site

The Atacama Large Millimeter/submillimeter Array (ALMA) has passed a key milestone crucial to producing the high-quality images that will be the trademark of t…

2009.09.18

Japanese ALMA antenna became the first to arrive at the ALMA 5000 m site.

Japanese ALMA antenna became the first to arrive at the ALMA 5000 m site. Japanese ALMA antenna became the first to arrive at the ALMA 5000 m site. The ALMA (…

2009.06.16

World's Highest Performance Submillimeter (terahertz) Receiver
- Band 10, the highest frequency receiver in ALMA, was successfully developed -