2012.06.01
ALMA turns its eyes to Centaurus A
A new image of the center of the distinctive galaxy Centaurus A, made with the Atacama Large Millimeter/submillimeter Array (ALMA), shows how the new observato…
ALMA Discoveries
261 - 280 / 395
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…
2012.04.12
ALMA Reveals Workings of Nearby Planetary System
A new observatory still under construction has given astronomers a major breakthrough in understanding a nearby planetary system that can provide valuable clu…
2012.04.02
NAOJ Chile Observatory Established
On April 1, 2012, the NAOJ Chile Observatory was established as a center of NAOJ’s research activities in Chile. Since April 2000, the NAOJ ALMA Project …
2012.02.03
ALMA EA-FEIC Completed the Last ACA Receiver System
On January 4, the ALMA East Asia Front-End Integration Center (EA-FEIC) in Taiwan completed the fabrication and evaluation of all the receiver systems for the …
2011.11.21
25 Antennas at AOS
On November 15, one more North American 12-m antenna was transported from the Operations Support Facility (OSF) at 2900 m to the Array Operations Site (AOS) at…
2011.10.03
ALMA Opens Its Eyes
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…
2011.06.06
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…
2010.12.12
Nine 12-m Antennas at AOS
On December 12, an American antenna of 12 m in diameter was transported from OSF (2,900 m asl) to AOS (5,000 m asl), bringing the total number of the antenna…
2010.12.08
ALMA Board Statement on Early Science
— ALMA Board Statement on Early Science — “At its meeting on November 16th-18th 2010, the ALMA Board noted the tremendous recent progress in…
2010.12.08
Test Image 1: Spiral Galaxy NGC253
This shows the well-known spiral NGC253, with an optical image of the whole galaxy on the left (credit: ESO). The ALMA test images show dense clouds of gas in …
2010.12.08
Test Image 2: Hot Molecular Core G34.26+0.15
An example of ALMA’s potential as a spectroscopic instrument: on the left is the map of the molecular “hot core” G34.26+0.15, which is unreso…
2010.12.08
Test Image 3: Disk around Bata-Pictoris
This shows the emission from the disk of dust surrounding the star Beta-Pictoris. On the left is an image at 70 microns from Herschel, (Olofsson et al., SDP Pr…
2010.12.08
Test Image 4: Quasar BRI 0952-0115
As a test of ALMA’s ability to observe broad spectral lines, we observed the quasar BRI 0952-0115, which is at a redshift of z = 4.43. The object is agai…
2010.05.29
Four 12-meter Antennas at AOS
At the Array Operations Site (AOS), there are currently four 12-meter antennas, which are under the performance evaluation. Since each of the antennas is usual…
NEW ARTICLES
2025 9.25
Winding Motion of Planet-Forming Spirals Captured on Video for the First Time
An international research team led by Tomohiro Yoshida, a graduate student at the Graduate University for Advanced Stud…
2025 8.8
The Universe’s Secret Harvest: ALMA Sheds Light on “the Cosmic Grapes”
Super high-resolution ALMA and JWST observations unveil unexpected substructure and underlying gas dynamics in a faint,…
2025 8.5
Discovery of Protoplanetary Disk Caught in Explosion Driven by Stellar Jet
A research team led by Masataka Aizawa of Ibaraki University studied a protoplanetary disk around the young star WSB 52…
