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Press Releases

eso0836 — Science Release

VLT and Rossi XTE satellite probe violently variable black holes

15 October 2008: Unique observations of the flickering light from the surroundings of two black holes provide new insights into the colossal energy that flows at their hearts. By mapping out how well the variations in visible light match those in X-rays on very short timescales, astronomers have shown that magnetic fields must play a crucial role in the way black holes swallow matter.

eso0835 — Science Release

Astronomers get best view yet of infant stars at feeding time — Tracing gas emission close to young stellar objects

10 October 2008: Astronomers have used ESO's Very Large Telescope Interferometer to conduct the first high resolution survey that combines spectroscopy and interferometry on intermediate-mass infant stars. They obtained a very precise view of the processes acting in the discs that feed stars as they form. These mechanisms include material infalling onto the star as well as gas being ejected, probably as a wind from the disc.

eso0834 — Photo Release

Born from the Wind — Unique Multi-wavelength Portrait of Star Birth

8 October 2008: Telescopes on the ground and in space have teamed up to compose a colourful image that offers a fresh look at the history of the star-studded region NGC 346. This new, ethereal portrait, in which different wavelengths of light swirl together like watercolours, reveals new information about how stars form.

eso0833 — Photo Release

Sharpening Up Jupiter — New image-correction technique delivers sharpest whole-planet ground-based picture ever

2 October 2008: A record two-hour observation of Jupiter using a superior technique to remove atmospheric blur has produced the sharpest whole-planet picture ever taken from the ground. The series of 265 snapshots obtained with the Multi-Conjugate Adaptive Optics Demonstrator (MAD) prototype instrument mounted on ESO's Very Large Telescope (VLT) reveal changes in Jupiter's smog-like haze, probably in response to a planet-wide upheaval more than a year ago.

eso0832 — Science Release

The Wild, Hidden Cousin of SN 1987A — Powerful nearby supernova caught by web of telescopes

25 September 2008: Over a decade after it exploded, one of the nearest supernovae in the last 25 years has been identified. This result was made possible by combining data from the vast online archives from many of the world’s premier telescopes.

eso0831 — Science Release

The Hibernating Stellar Magnet — First Optically Active Magnetar-Candidate Discovered

23 September 2008: Astronomers have discovered a most bizarre celestial object that emitted 40 visible-light flashes before disappearing again. It is most likely to be a missing link in the family of neutron stars, the first case of an object with an amazingly powerful magnetic field that showed some brief, strong visible-light activity.

eso0830 — Science Release

Pinning down the Milky Way's spin — Pulsating stars enable a new precise determination of the rotation of our Galaxy

19 September 2008: New, very precise measurements have shown that the rotation of the Milky Way is simpler than previously thought. A remarkable result from the most successful ESO instrument HARPS, shows that a much debated, apparent 'fall' of neighbourhood Cepheid stars towards our Sun stems from an intrinsic property of the Cepheids themselves.

eso0829 — Organisation Release

Future Looks Bright for Interferometry — First Light for the PRIMA instrument

18 September 2008: The PRIMA instrument [1] of the ESO Very Large Telescope Interferometer (VLTI) recently saw "first light" at its new home atop Cerro Paranal in Chile. When fully operational, PRIMA will boost the capabilities of the VLTI to see sources much fainter than any previous interferometers, and enable astrometric precision unmatched by any other existing astronomical facility. PRIMA will be a unique tool for the detection of exoplanets.

eso0828 — Science Release

The Double Firing Burst — Brightest gamma-ray burst provides wealth of information on how stars explode

10 September 2008: Astronomers from around the world combined data from ground- and space-based telescopes to paint a detailed portrait of the brightest explosion ever seen. The observations reveal that the jets of the gamma-ray burst called GRB 080319B were aimed almost directly at the Earth.

eso0827 — Science Release

Mind the Gap — VLT instrument hints at the presence of planets in young gas discs

8 September 2008: Astronomers have been able to study planet-forming discs around young Sun-like stars in unsurpassed detail, clearly revealing the motion and distribution of the gas in the inner parts of the disc. This result, which possibly implies the presence of giant planets, was made possible by the combination of a very clever method enabled by ESO's Very Large Telescope.

eso0826 — Organisation Release

A fine-tooth comb to measure the accelerating universe — Developing a precise ruler for the future

4 September 2008: Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope of a new calibration system for precise spectrographs. The method uses a Nobel Prize-winning technology called a 'laser frequency comb', and is published in this week's issue of Science.

eso0825 — Photo Release

The Thousand-Ruby Galaxy — A prodigious pinwheel shines in the darkness

2 September 2008: ESO's Wide Field Imager has captured the intricate swirls of the spiral galaxy Messier 83, a smaller look-alike of our own Milky Way. Shining with the light of billions of stars and the ruby red glow of hydrogen gas, it is a beautiful example of a barred spiral galaxy, whose shape has led to it being nicknamed the Southern Pinwheel.

eso0824 — Science Release

How Do Galaxies Grow? — Assembling the Most Massive Galaxies in the Universe

26 August 2008: Astronomers have caught multiple massive galaxies in the act of merging about 4 billion years ago. This discovery, made possible by combining the power of the best ground- and space-based telescopes, uniquely supports the favoured theory of how galaxies form.

eso0823 — Science Release

The Quiet Explosion — Object intermediate between normal supernovae and gamma-ray bursts found

24 July 2008: A European-led team of astronomers are providing hints that a recent supernova may not be as normal as initially thought. Instead, the star that exploded is now understood to have collapsed into a black hole, producing a weak jet, typical of much more violent events, the so-called gamma-ray bursts. The object, SN 2008D, is thus probably among the weakest explosions that produce very fast moving jets. This discovery represents a crucial milestone in the understanding of the most violent phenomena observed in the Universe.

eso0822 — Science Release

Watching a 'New Star' Make the Universe Dusty — VLTI observes for the first time how dust forms around an erupting star

24 July 2008: Using ESO's Very Large Telescope Interferometer, and its remarkable acuity, astronomers were able for the first time to witness the appearance of a shell of dusty gas around a star that had just erupted, and follow its evolution for more than 100 days. This provides the astronomers with a new way to estimate the distance of this object and obtain invaluable information on the operating mode of stellar vampires, dense stars that suck material from a companion.

eso0821 — Science Release

Accretion Discs Show Their True Colours — VLT observations of quasars reconcile observations with models

23 July 2008: Quasars are the brilliant cores of remote galaxies, at the hearts of which lie supermassive black holes that can generate enough power to outshine the Sun a trillion times. These mighty power sources are fuelled by interstellar gas, thought to be sucked into the hole from a surrounding 'accretion disc'. A paper in this week's issue of the journal Nature, partly based on observations collected with ESO's Very Large Telescope, verifies a long-standing prediction about the intensely luminous radiation emitted by these accretion discs.

eso0820 — Organisation Release

Austria to join ESO on 1 July 2008

30 June 2008: Today, at a ceremony in Vienna, the Austrian Minister for Science and Research, Johannes Hahn and the ESO Director General, Tim de Zeeuw, signed the formal Accession Agreement between Austria and ESO, paving the way for Austria to join ESO as its 14th member state by 1 July this year.

eso0819 — Science Release

A Trio of Super-Earths — A harvest of low-mass exoplanets discovered with HARPS

16 June 2008: Today, at an international conference, a team of European astronomers announced a remarkable breakthrough in the field of extra-solar planets. Using the HARPS instrument at the ESO La Silla Observatory, they have found a triple system of super-Earths around the star HD 40307. Moreover, looking at their entire sample studied with HARPS, the astronomers count a total of 45 candidate planets with a mass below 30 Earth masses and an orbital period shorter than 50 days. This implies that one solar-like star out of three harbours such planets.

eso0818 — Organisation Release

Shaw Prize Goes to Reinhard Genzel — Work on supermassive black hole done with ESO telescopes rewarded

10 June 2008: The Shaw Prize in Astronomy for 2008 is awarded to Professor Reinhard Genzel, Director of the Max Planck Institute for Extraterrestrial Physics (MPE), in recognition of his outstanding contribution in demonstrating that the Milky Way contains a supermassive black hole at its centre, a result largely obtained with the help of ESO's telescopes.

eso0817 — Photo Release

The Little Man and the Cosmic Cauldron — VLT images two nebulae in Carina

27 May 2008: On the occasion of the 10th anniversary of the Very Large Telescope's First Light, ESO is releasing two stunning images of different kinds of nebulae, located towards the Carina constellation. The first one, Eta Carinae, has the shape of a 'little man' and surrounds a star doomed to explode within the next 100000 years. The second image features a much larger nebula, whose internal turmoil is created by a cluster of young, massive stars.

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