Highlights — Some exciting recent scientific results from our group

Two powerful telescopes provide the most detailed radio maps of the Northern Galactic Plane

By combining two of the most powerful radio telescopes on Earth, an international team of researchers led by the Max Planck Institute for Radio Astronomy (MPIfR) in Bonn, created the most sensitive maps of the radio emission of large parts of the Northern Galactic plane so far. The data were taken with the Karl G. Jansky Very Large Array (VLA) in New Mexico in two different configurations and the 100-m Effelsberg telescope near Bonn. This provides for the first time a radio survey covering all angular scales down to 1.5 arc-seconds, the apparent size of a tennis ball lying on the ground and seen from a flying plane. Contrary to previous surveys, GLOSTAR observed not only the radio continuum in the frequency range from 4-8 GHz in full polarization, but simultaneously also spectral lines that trace the molecular gas (from methanol and formaldehyde) and atomic gas via radio recombination lines. more
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).
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Using the South African MeerKAT telescope, astronomers started to systematically explore binary pulsars for tests of gravity

An international group of astronomers, led by the Max Planck Institute for Radio Astronomy (MPIfR) in Bonn, Germany and the University of British Columbia (UBC) in Vancouver presents the first results of a large program to use South Africa’s MeerKAT radio telescope to test the theories of Einstein with unprecedented precision.
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South Africa’s MeerKAT Radio Telescope explored the central regions of globular clusters in search of very weak pulsars

A group of astronomers, led by the Italian National Institute of Astrophysics (INAF) and the Max Planck Institute for Radio Astronomy (MPIfR) in Bonn, Germany, has discovered 8 millisecond pulsars located within dense clusters of stars, known as “globular clusters”, using South Africa’s MeerKAT radio telescope. Millisecond pulsars are neutron stars, the most compact star known, that spin up to 700 times per second. This result comes from the synergic work of two international collaborations, TRAPUM and MeerTIME.
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Two international teams of astronomers 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).
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