Dr. Hannelore Hämmerle
Dr. Hannelore Hämmerle
MPE Press Officer
Phone:+49 89 30000-3980Fax:+49 89 30000-3569

Max-Planck-Institut für extraterrestrische Physik

MPE Press Releases (2005 - ....)

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The ideal black hole laboratory

June 21, 2016
Successful observations with GRAVITY and the ESO 8m Very Large Telescopes [more]
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Unexpected excess of giant planets in star cluster

June 17, 2016
An international team of astronomers have found that there are far more planets of the hot Jupiter type than expected in a cluster of stars called Messier 67. This surprising result was obtained after long-term observations using a number of telescopes and instruments, which led to the discovery of three giant planets. The denser environment in a cluster will cause more frequent interactions between planets and nearby stars, which may explain the excess of hot Jupiters. [more]
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First detections of the key prebiotic molecule PO in star-forming regions

May 31, 2016
An international group of scientists from the Arcetri Astrophysical Observatoryin Florence, the Center of Astrobiology in Madrid and the Max-Plank Institute for Extraterrestrial Physics has detected for the first time the prebiotic molecule PO in star-forming regions. This molecule plays a key role in the double helix structure of DNA, and is therefore directly linked to the origin of life in the Universe. [more]
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Black hole in a lonely galaxy

April 07, 2016
Astronomers find unusual descendant of a quasar [more]
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Galaxy with a huge black hole is a hermit

April 06, 2016
The most massive black holes are not confined to the highest density regions in the universe as a new discovery in a galaxy close to our Milky Way shows. An international team of astronomers from the Max Planck Institute for Extraterrestrial Physics, the USA, and Canada analysed observations from a survey of massive early-type galaxies and found that the black hole at the centre of the group galaxy NGC 1600 has a mass 17 billion times larger than our Sun, one of the most massive black holes found to date. Moreover, the analysis shows that the distribution of stars near the centre of the galaxy is rather diffuse and that the size of this region extends over the same radius as the gravitational sphere of influence of the black hole. [more]
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A new view of the X-ray sky

March 22, 2016
Scientists at the Max Planck Institute for Extraterrestrial Physics (MPE) have revisited the all-sky survey carried out by the ROSAT satellite, to create a new image of the sky at X-ray wavelengths. Along with this a revised and extended version of the catalogue of bright and faint point-like sources will be released. The now published “2RXS catalogue” provides the deepest and cleanest X-ray all-sky survey to date, which will only be superseded with the launch of the next generation X-ray survey satellite, eROSITA, currently being completed at MPE. [more]
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Gamma rays reveal pair plasma from a flaring black hole binary system

February 29, 2016
ESA’s INTEGRAL observatory saw the microquasar V404 Cygni flaring in June last year, which helped a team of astronomers led by the Max Planck Institute for Extraterrestrial Physics to discover electron-positron pair plasma from the black hole’s immediate surrounding. In such a binary system, a stellar black hole swallows matter from a companion star, but also ejects a two-sided jet. An accretion disk can be seen in X-ray emission, while radio observations show escaping plasma clouds in jets far out. The relation between accretion and ejection is completely unknown, as are processes which happen close to the black hole. Radiation near the black hole should be energetic enough to produce electrons and their anti-matter partners, the positrons, creating so-called ‘pair plasma’. The INTEGRAL data now showed a clear signature of this materialisation of radiation into pair plasma, as the escaping positrons emit a characteristic gamma-ray signal. This was discovered by the Max Planck scientists. [more]
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