High-energy transient signals are most often determined to be gamma-ray burst events, but the recently-launched Einstein Probe has expanded astronomers’ ability to quickly respond to similar signals occurring at X-ray wavelengths. Now, a multi-wavelength study of EP240408a concludes that while many of the signal’s characteristics might lead to the conclusion that it is a gamma-ray burst, the non-detection at radio wavelengths precludes that possibility.
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Double the Disks, Double the Discovery: New Insights into Planet Formation in DF Tau
Tucked away in a star-forming region in the Taurus constellation, a pair of circling stars are displaying some unexpected differences in the circumstellar disks of dust and gas that surround them. A new study led by researchers at Lowell Observatory, combining data from the Atacama Large Millimeter/submillimeter Array (ALMA) and Keck Observatory, has unveiled intriguing findings about planet formation in this binary star system, known as DF Tau, along with other systems in this region.
French Astronomer Honored as 2022 Jansky Lecturer
Credit: NRAO/AUI/NSF
Associated Universities, Inc. (AUI) and the National Radio Astronomy Observatory (NRAO) have awarded the 2022 Karl G. Jansky Lectureship to Professor Françoise Combes, Chair of Galaxies and Cosmology at the College of France and Astronomer at the Paris Observatory. The Jansky Lectureship is an honor established by the trustees of AUI to recognize outstanding contributions to the advancement of radio astronomy.
Professor Combes is being honored for her significant contributions to the fields of galaxy evolution, the interstellar medium, dark matter, and radio astronomy. Her expertise in a wide range of fields over the course of an outstanding scientific career has extended her influence to the entire breadth of astronomy. She is author of more than 1,200 publications and more than 20 books.
She received a Ph.D in astrophysics from the Ecole Normale Superieure in Paris, and her work has been recognized by numerous honors and awards. These include Fellowship in the American Astronomical Society, the R.M. Petrie Prize of the Canadian Astronomical Society, the Tycho Brahe Prize from the European Astronomical Society, the Gothenburg Lise Meitner Award, and an Honorary Fellowship of the Royal Astronomical Society.
A longtime scientific editor of Astronomy & Astrophysics, she has served in advisory roles for the Atacama Large Millimeter/submillimeter Array, the Square Kilometer Array, the Hubble Space Telescope, and the International Astronomical Union.
Combes will deliver her Jansky Lectures, entitled, “Symbiosis between black holes and galaxies,” in Charlottesville, VA, on Feb. 14, 2023, in Green Bank, WV on Feb. 15, 2023, and in Socorro, NM, on Feb. 17, 2023.
Tuesday, February, 14
Charlottesville, VA – Darden Conference Center, University of Virginia
Public reception at 6pm
Lecture at 7pm
Wednesday, February 15
Green Bank, WV – Science Center Auditorium
Lecture at 4pm
Q&A and public reception immediately to follow
Friday, February 17
Socorro, NM – Macey Center, New Mexico Tech
Lecture at 7pm
Public reception immediately to follow
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.
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, and Vera Rubin, discoverer of dark matter in galaxies.
View a complete list of past recipients.
The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.
This news article was originally published on the NRAO website on February 5, 2023.
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The flexible observing setup of the Green Bank Observatory’s 20-meter telescope enabled frequent, long-duration observations of eight pulsars, spanning two and a half years for a student-driven study carried out by students in the Pulsar Science Collaboratory program.
Double the Disks, Double the Discovery: New Insights into Planet Formation in DF Tau
Tucked away in a star-forming region in the Taurus constellation, a pair of circling stars are displaying some unexpected differences in the circumstellar disks of dust and gas that surround them. A new study led by researchers at Lowell Observatory, combining data from the Atacama Large Millimeter/submillimeter Array (ALMA) and Keck Observatory, has unveiled intriguing findings about planet formation in this binary star system, known as DF Tau, along with other systems in this region.