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.
Next-Generation Very Large Array Antenna Design to be Used By German Astronomers
Artist’s impression of ngVLA antennas design, as proposed at the current site of the Karl G. Jansky Very Large Array on the Plains of San Agustin in west-central New Mexico. Credit: Sophia Dagnello, NRAO/AUI/NSF
Bavarian state government and regional universities fund construction of antenna on Germany’s highest peak
The U.S. National Science Foundation National Radio Astronomy Observatory has announced a significant collaboration with the Bavarian State Government to construct a cutting-edge radio telescope atop Germany’s highest mountain. This radio telescope will use the design of the proposed NSF NRAO’s Next Generation Very Large Array (ngVLA).
Known as the Wetterstein Millimeter Telescope (WMT), this antenna could interface with the NSF NRAO’s proposed ngVLA, while also having the capability to function independently. The WMT will be strategically positioned at the summit of the Zugspitze, offering exceptional observing conditions due to its high altitude and clear skies. This location can significantly improve the antenna’s sensitivity and resolution across the millimeter wavelength range, allowing for groundbreaking astronomical observations.
The project is funded by the Bavarian State Government, as announced in their recent press release. “The Wetterstein Millimeter Telescope will be an exciting research facility and further opens up the possibility of one day establishing a global ngVLA network,” said ngVLA Project Scientist Eric Murphy of the NSF NRAO. “Its placement on the Zugspitze provides unparalleled observing conditions, which can enhance the overall sensitivity and resolution of the ngVLA. This may enable astronomers to conduct unprecedented research across a wide range of astrophysical topics.”
The WMT is not only a significant scientific achievement in its own right, but also has the potential to act as a catalyst for the development of a larger, dedicated interferometric array. Such an array, which could potentially include up to 16 antennas, would leverage the considerable astronomical expertise and infrastructure already present in Germany, and could expand the NSF NRAO’s proposed ngVLA reach and scientific impact.
About NRAO
The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.
This news article was originally published on the NRAO website on February 10, 2025.
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NSF VLA Contributes Crucial Puzzle Piece to ‘Peculiar’ High Energy Transient
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.
Students Contribute to New Understanding of ‘Twinkling’ Pulsars
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.