Using the Very Large Array (NSF VLA), astronomers have revealed for the first time the huge flow of gas near a massive star in the making which allows its rapid growth.
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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.
Helical Magnetic Fields: A Universal Mechanism for Jet Collimation?
New observations from the National Science Foundation National Radio Astronomy Observatory’s (NSF NRAO) Karl G. Jansky Very Large Array (NSF VLA) provide compelling evidence supporting a universal mechanism for the collimation of astrophysical jets, regardless of their origin. A new study, published in the Astrophysical Journal Letters, reveals the presence of a helical magnetic field within the HH 80-81 protostellar jet, a finding that mirrors similar structures observed in jets emanating from supermassive black holes.
Astronomers Detect Earliest and Most Distant Blazar in the Universe
A groundbreaking discovery has revealed the presence of a blazar—a supermassive black hole with a jet pointed directly at Earth—at an extraordinary redshift of 7.0. The object, designated VLASS J041009.05−013919.88 (J0410−0139), is the most distant blazar ever identified, providing a rare glimpse into the epoch of reionization when the universe was less than 800 million years old.