New radio images from the the U.S. National Science Foundation Very Large Array trace a pair of powerful plasma jets launched by galaxy VV 340a’s central supermassive black hole, which appear to be driving hot coronal gas out of the galaxy and shutting down future star formation.
Recent News
Radio Telescopes Uncover ‘Invisible’ Gas Around Record-Shattering Cosmic Explosion
Astronomers using the U.S. National Science Foundation Very Large Array and the Atacama Large Millimeter/submillimeter Array have revealed a dense cocoon of gas around one of the most extreme cosmic explosions ever seen, showing that a ravenous black hole ripped apart a massive star and then lit up its surroundings with powerful X-rays.
New Discovery Challenges Evolution of Galaxy Clusters
Peering back in time, around 12 billion years, astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found the most distant and direct evidence of scorching gas in a forming galaxy cluster, SPT2349-56. The hot plasma, seen when the Universe was just 1.4 billion years old, is far hotter and more pressurized than current theories predicted for such an early system.
Ken Kellermann Awarded the 2024 Karl G. Jansky Lectureship
Credit: NRAO/AUI/NSF
Associated Universities, Inc. (AUI) and the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) have awarded the 2024 Karl G. Jansky Lectureship to Dr. Ken Kellermann, Senior Scientist, Emeritus at NSF NRAO. The Jansky Lectureship is an honor established by the trustees of AUI to recognize outstanding contributions to the advancement of radio astronomy.
After earning his Ph.D. in physics and astronomy at the California Institute of Technology in 1963, Dr. Kellermann did postdoctoral work at the Commonwealth Scientific and Industrial Research Organization (CSIRO), using the new Parkes radio telescope to observe planetary thermal emissions. He joined the National Radio Astronomy Observatory in 1965, where he has remained ever since studying extragalactic radio sources. Dr. Kellermann was one of the leading researchers in the development of Very Long Baseline Interferometry (VLBI). His work has allowed astronomers to view the radio sky in unprecedented detail and forms the basis of modern high-resolution radio astronomy. He was awarded the Helen B. Warner Prize for Astronomy in 1971 and the Catherine Wolfe Bruce Gold Medal in 2014. Together with Ellen N. Bouton he is the author of “Star Noise: Discovering the Radio Universe,” published by Cambridge University Press.
Dr. Kellermann will deliver his Jansky Lecture, entitled “Discovering the Radio Universe” in Charlottesville, VA on October 24; at the U.S. National Science Foundation Green Bank Observatory (NSF GBO) in Green Bank, WV on November 6; and in Socorro, NM on November 26. Learn more about these event times and locations.
First awarded in 1966, the Jansky Lectureship is named in honor of the man who, in 1932, first detected radio waves from a cosmic source. Karl Jansky’s discovery of radio waves from the central region of the Milky Way started the science of radio astronomy, which has changed our understanding of the Universe.
Other recipients of the Jansky award include eight Nobel laureates (Drs. Subrahmanyan Chandrasekhar, Edward Purcell, Charles Townes, Arno Penzias, Robert Wilson, William Fowler, Joseph Taylor, and Reinhard Genzel) as well as Jocelyn Bell-Burnell, discoverer of the first pulsar.
See a list of past recipients.
The National Radio Astronomy Observatory and the Green Bank Observatory are facilities of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.
This news article was originally published on the NRAO website on October 11, 2024.
Recent News
The NSF Very Large Array Helps Reveal Record-Breaking Stream of Super-Heated Gas from Nearby Galaxy
New radio images from the the U.S. National Science Foundation Very Large Array trace a pair of powerful plasma jets launched by galaxy VV 340a’s central supermassive black hole, which appear to be driving hot coronal gas out of the galaxy and shutting down future star formation.
Radio Telescopes Uncover ‘Invisible’ Gas Around Record-Shattering Cosmic Explosion
Astronomers using the U.S. National Science Foundation Very Large Array and the Atacama Large Millimeter/submillimeter Array have revealed a dense cocoon of gas around one of the most extreme cosmic explosions ever seen, showing that a ravenous black hole ripped apart a massive star and then lit up its surroundings with powerful X-rays.
New Discovery Challenges Evolution of Galaxy Clusters
Peering back in time, around 12 billion years, astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found the most distant and direct evidence of scorching gas in a forming galaxy cluster, SPT2349-56. The hot plasma, seen when the Universe was just 1.4 billion years old, is far hotter and more pressurized than current theories predicted for such an early system.