Virtual Talk: Babelsberg Starry Night at 20 April
Magnetic field streamlines detected by SOFIA shown over an image of the Whirlpool galaxy, M51, from NASA’s Hubble Space Telescope.
Credit: NASA, the SOFIA science team, A. Borlaff; NASA, ESA, S. Beckwith (STScI) and the Hubble Heritage Team (STScI/AURA)The next lecture of the virtual Babelsberg Starry Nights of the Leibniz Institute for Astrophysics Potsdam (AIP) on the topic "Shaken and stirred: On the origin of large-scale galactic magnetic fields" will be broadcasted starting on Thursday, 20 April 2023 on the YouTube channel "Urknall, Weltall und das Leben". Please note that the lecture will be given in German.
On Thursday, starting at 6 p.m., Dr. Oliver Gressel‘s lecture on the topic "Shaken and stirred: On the origin of large-scale galactic magnetic fields" from the Babelsberg Starry Night series will be online.
Spiral galaxies like our Milky Way are not only home to billions of stars but also the largest coherent magnets known in the universe. Radio observations with large telescopes like the 100m dish in Effelsberg near Bonn tell us that their magnetism is anchored in the interstellar plasma. The interstellar medium, in turn, is characterized by turbulence, which in turn is continuously driven by stellar explosions. The rotation and stratification of the galaxy as a whole thereby causes systematic turbulence, which enables a so-called dynamo. This effect describes the emergence of large-scale galactic magnetic fields, which are difficult to explain otherwise.
On the 3rd Thursday of each month from 6 p.m., the Babelsberg Starry Night lectures are available at
https://www.aip.de/babelsberger-sternennaechte
or via the YouTube channel Urknall, Weltall und das Leben (Big bang, the Universe and Life) and can be viewed at any time afterwards.
Magnetic field streamlines detected by SOFIA shown over an image of the Whirlpool galaxy, M51, from NASA’s Hubble Space Telescope.
Credit: NASA, the SOFIA science team, A. Borlaff; NASA, ESA, S. Beckwith (STScI) and the Hubble Heritage Team (STScI/AURA)The next lecture of the virtual Babelsberg Starry Nights of the Leibniz Institute for Astrophysics Potsdam (AIP) on the topic "Shaken and stirred: On the origin of large-scale galactic magnetic fields" will be broadcasted starting on Thursday, 20 April 2023 on the YouTube channel "Urknall, Weltall und das Leben". Please note that the lecture will be given in German.
On Thursday, starting at 6 p.m., Dr. Oliver Gressel‘s lecture on the topic "Shaken and stirred: On the origin of large-scale galactic magnetic fields" from the Babelsberg Starry Night series will be online.
Spiral galaxies like our Milky Way are not only home to billions of stars but also the largest coherent magnets known in the universe. Radio observations with large telescopes like the 100m dish in Effelsberg near Bonn tell us that their magnetism is anchored in the interstellar plasma. The interstellar medium, in turn, is characterized by turbulence, which in turn is continuously driven by stellar explosions. The rotation and stratification of the galaxy as a whole thereby causes systematic turbulence, which enables a so-called dynamo. This effect describes the emergence of large-scale galactic magnetic fields, which are difficult to explain otherwise.
On the 3rd Thursday of each month from 6 p.m., the Babelsberg Starry Night lectures are available at
https://www.aip.de/babelsberger-sternennaechte
or via the YouTube channel Urknall, Weltall und das Leben (Big bang, the Universe and Life) and can be viewed at any time afterwards.
Images
Magnetic field streamlines detected by SOFIA shown over an image of the Whirlpool galaxy, M51, from NASA’s Hubble Space Telescope.
Big screen size [1000 x 1249, 260 KB]
Original size [2286 x 2857, 1.2 MB]
