Dr. Norbert Junkes
Presse- und Öffentlichkeitsarbeit
Phone:+49 228 525-399

Max-Planck-Institut für Radioastronomie, Bonn


Constraints on Einstein's Theory with EHT Data of the Black Hole M87*

May 20, 2021
In 2019, the EHT Collaboration published the first image of a black hole located at the centre of the galaxy M87. Now a collaboration team led by theoretical physicists at the Goethe University Frankfurt, including MPIfR scientists, have analysed data from the black hole M87* to test Albert Einstein's theory of general relativity. According to the tests, the size of the shadow from M87* is in excellent agreement with a black hole predicted by general relativity, but narrows the properties of black holes in other theories down. The publication in the current issue of Physical Review D is within the framework of the BlackHoleCam (BHC) project (EHT Press Release, May 20, 2021). [more]

The Effelsberg radio telescope turns 50

May 11, 2021
On the occasion of the anniversary, the Time Travel Trail is opened as the fourth astronomical hiking trail at the radio telescope [more]

FAST Radio Telescope Detects 3D Spin-velocity Alignment in a Pulsar

May 07, 2021
Based on observations from the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in China, an international research team led by Jumei Yao, including Michael Kramer from the MPIfR, found the first evidence for three-dimensional (3D) spin-velocity alignment in pulsars.The study was published in Nature Astronomy on May 6 (CAS-Press Release, May 07, 2021). [more]

The Effelsberg radio telescope turns 50

May 05, 2021
On May 12, 1971, an opening ceremony of the 100-m telescope took place with a number of official guests [more]

Black holes as magnetic jet engines

April 22, 2021
European Research Council supports Bonn astrophysicists with 2.5 million euros to explain the phenomenon [more]

Famous fast radio burst FRB20180916B just barely lets itself be captured

April 15, 2021
Two international teams of astronomers including Ramesh Karuppusamy from MPIfR have narrowed-down the origin of the flashes produced in the fast radio burst FRB20180916B by examining them with the highest time resolution and at the lowest possible frequencies. These studies, using the Effelsberg 100-m telescope within the EVN network and the European LOFAR telescope network, have been published in Nature Astronomy and in The Astrophysical Journal Letters (JIVE Press Release, April 15, 2021). [more]

Event Horizon Telescope 2021

April 14, 2021
Observing campaign in April 2021: world-wide radio telescope network retakes observations after 3-year long break [more]

Stellar feedback: stellar winds can fuel the formation of new stars

April 13, 2021
Observations of the interactions of massive stars with their environment are carried out in the SOFIA program FEEDBACK led by Nicola Schneider and Alexander Tielens, using the upGREAT receiver built by MPIfR and Univ. Cologne. Studies of the star-forming region RCW 120 in the southern sky show that stellar feedback positively influences star formation in the surrounding area. The results, under partizipation of MPIfR authors, are published in the April issue of the journal “Science Advances” (Press Release UzK April 13, 2021, in German language). [more]

SOFIA shows new way to investigate the Earth’s atmosphere

April 08, 2021
A team from the DLR Institute for Optical Sensor Systems in Berlin with the participation of MPIfR scientists shows that SOFIA offers the possibility of better understanding the atmosphere of our home planet. To this end, the concentration of atomic oxygen in the Earth's mesosphere and lower thermosphere in an altitude range from 80 to 400 km was studied by high-resolution spectral measurements with the upGREAT instrument (DSI Press Release from April 01, 2021, in German Language, Original Paper in „Nature Journal Communications Earth and Environment“). [more]

The Effelsberg radio telescope turns 50

March 31, 2021
On April 1, 2021, a special stamp will be issued to mark the 50th birthday of the telescope [more]

Hunting for the elusive methylene radical

March 10, 2021
The methylene radical, CH2, is of considerable astrophysical interest because it is both produced and destroyed at an early stage in the sequence of ion-molecule reactions that govern interstellar chemistry. A research team led by Arshia Jacob from MPIfR has carried out observations of this radical toward multiple positions in Orion and other high-mass star-forming regions suggesting that the CH2 emission arises from hot but dilute layers of photodissociation regions (PDRs) but not from the denser parts, such as the Orion Bar. Their results are published as high-lighted paper in this month’s volume of the research journal “Astronomy & Astrophysics” (A&A Highlighted Paper, March 03, 2021). [more]

Hoinga: The largest supernova remnant ever discovered with X-rays

March 03, 2021
In the first all-sky survey by the German eROSITA X-ray telescope, astronomers have identified a previously unknown supernova remnant, dubbed “Hoinga”. The Hoinga supernova remnant is very large and located far from the galactic plane – a surprising first finding – implying that the next years might bring many more discoveries. The lead author of the publication, Werner Becker from the Max-Planck-Institut für extraterrestrische Physik (MPE), holds an affiliation also with the MPIfR (MPE Press Release, March 03, 2021). [more]

Perseverance Mars Mission

February 16, 2021
On Thursday, February 18, NASA's Perseverance spacecraft will blaze through the Martian atmosphere and attempt to set a lander gently on the surface of the Red Planet, in the area of the Jezero crater.  As the lander descends into Mars' atmosphere, it will broadcast simple radio signals back to Earth. Two of the world’s largest radio telescopes, MPIfR’s 100-m radio telescope at Effelsberg, Germany (Photo: N. Tacken/MPIfR), and the GBT in the United States, will try to pick up the signals from Mars. (DLR Press Release, February 15, 2021) [more]

From Cologne to the Stars. The Flying Observatory SOFIA investigates the Night Sky above Europe

February 04, 2021
On February 04, 2021, DLR’s and NASA’s flying infrared observatory SOFIA arrived safely at the Cologne/Bonn airport. SOFIA will be deployed there for six weeks for a total of 20 research flights with the GREAT receiver, operated by scientists from the Max-Planck-Institut für Radioastronomie (MPIfR) and the I. Physikalisches Institut der Universität zu Köln (DLR Media Release, February 04, 2021). [more]

The Square Kilometre Array Observatory (SKAO) is Born

February 04, 2021
Launch of international Observatory signals new era for radio astronomy [more]
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