IRAM is an international research institute for radio astronomy. Its overall objective is to explore the universe and to study its origins and evolution.

Founded in 1979, IRAM’s headquarters are located in Grenoble. With a staff of more than 120 scientists, engineers, technicians and administrative personnel, IRAM maintains and develops two observatories: the 30-meter telescope located on Pico Veleta near Granada in Spain, and the Plateau de Bure interferometer (an array of six 15-meter telescopes) in the French Alps. Both instruments are prime facilities for radio astronomy and the most powerful observatories today operating at millimetre wavelengths. [...]

August 26, 2010
Les étoiles massives font des vagues
En combinant le radiotélescope de 30-mètres de l’IRAM et le télescope Spitzer (NASA), une équipe d’astronomes a pu observer pour la première fois le phénomène des 'vagues' à la surface d'un nuage interstellaire dans la nébuleuse d'Orion.

April 20, 2010
New Plateau de Bure correlator WideX now operating
We are pleased to announce the availability of WideX for astronomical observations with the Plateau de Bure Interferometer. The new digital processing hardware system executes more than 900 tera multiplications by second to process by correlation the output signals of an interferometer of up to 8 antennas and over a total instantaneous bandwidth of 64 GHz.

April 12, 2010
Observing with ALMA - Early Science - Registration now open!
From November 29th to December 1st 2010, the IRAM node of the European ALMA Regional Center will organize a practical workshop on how to plan and analyze ALMA Early Science observations. The goal of the workshop is to provide the practical information needed to plan ALMA Early Science observations and answer the first Call for Proposals.

April 8, 2010
7th IRAM Interferometry School 2010 - Registration is now open!
IRAM will organize this year its 7th Millimeter Interferometry School. These schools are organized every two years since 1998. The 7th school will take place at the IRAM headquarters (Grenoble, France) on October 4-8th, 2010.

February 11, 2010
Les jeunes galaxies mangent du froid
Une équipe internationale d’astronomes a réussi à montrer que quelques milliards d’années après le Big Bang, lorsque l’Univers n’avait qu’un tiers de son âge actuel, les galaxies massives formant des étoiles contenaient cinq à dix fois plus de gaz froid que celles d’aujourd’hui. Réalisées grâce à l’interféromètre du Plateau de Bure, ces observations de grandes quantités de matière froide, élément clef dans la formation stellaire, expliquent directement les productions gigantesques d’étoiles à ces époques reculées.

February 8, 2010
Première localisation de l’eau dans un système planétaire en formation
Pour la première fois, des astronomes ont pu localiser où se trouve l’eau dans les disques en rotation autour d’une jeune étoile, semblable à notre soleil. Ces disques, au sein desquels l’on pense que les planètes se forment, sont constitués de gaz et de poussières. La présente analyse montre, de plus, qu’ils peuvent renfermer jusqu’à cent fois la quantité d’eau contenue dans les océans terrestres. Réalisées avec l’interféromètre du Plateau de Bure, l’un des radio observatoires les plus sensibles au monde, les observations permettent ainsi de dévoiler une partie du mystère de l’origine de l’eau dans les systèmes planétaires...

December 10, 2009
IRAM scales new heights: At 5000 meters altitude, the institute's equipments capture first fringes at ALMA
On November 5th 2009, first fringes on the high-altitude site were obtained with the band 7 receivers, measuring the continuum emission of a bright quasar, 3C454.3. The result testifies for the high quality and performances of IRAM receivers, which exhibit noise figures well below the initial ALMA specifications. With its highly recognized expertise, IRAM is one of the major partners in the construction of ALMA, a giant radio observatory in the Chilean desert...

November 12, 2009
Mayor of Grenoble and Member of Parliament visit IRAM exhibition stand at the Fête de la Science
The photo shows Grenoble's mayor, Michel Destot, and Geneviève Fioraso, Member of the French Parliament, during their visit of the IRAM exhibition stand at the "Village des Sciences de Grenoble 2009". During 4 days and on the occasion of the French "Fête de la Science", IRAM staff members, astronomers and engineers were explaining IRAM's activities to a general public...

May 14, 2009
IRAM detectors, tiny but great in space
ESA, the European space agency will soon launch two new scientific satellites for astronomy in a combined mission with its heavy load carrier Ariane 5. Both of them, Planck and Herschel, are equipped with the latest high technology from the Grenoble area. In particular the Herschel Space Observatory (HSO) will embark super-conducting detectors which have been designed and manufactured at the IRAM laboratories.

February 5, 2009
Infant galaxies: small and hyperactive
When galaxies are born, do their stars form everywhere at once, or only within a small core region? Recent measurements with the Plateau de Bure Interferometer provide the first concrete evidence that star-forming regions in infant galaxies are indeed small - but also hyperactive, producing stars at astonishingly high rates.

November 25, 2008
First detection of glycolaldehyde outside the Galactic Center
With the IRAM Plateau de Bure interferometer an international team of scientists has detected for the first time outside the Galactic center the simplest of the monosaccharide sugars: glycolaldehyde. The importance of this organic molecule remains in the fact that it can react with propenal to form ribose, a central constituent of RNA, and is, therefore, directly linked to the origin of life...