The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) has received funding to expand its study of an invisible—and crucial—scientific and technological resource: the radio spectrum.
Recent News
Largest Oort Cloud Comet Ever Observed Reveals Its Secrets with ALMA’s Powerful Gaze
A team of astronomers has made a groundbreaking discovery by detecting molecular activity in comet C/2014 UN271 (Bernardinelli-Bernstein)—the largest and second most distantly active comet ever observed from the Oort Cloud.
Unusual stellar nurseries near our galaxy’s center puzzle scientists
New research led by Dr. James De Buizer at the SETI Institute and Dr. Wanggi Lim at IPAC at Caltech revealed surprising results about the rate at which high-mass stars form in the galactic center of the Milky Way.
IMAGE RELEASE: Galaxies in the Perseus Cluster
For galaxies, as for people, living in a crowd is different from living alone. Recently, astronomers used the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) to learn how a crowded environment affects galaxies in the Perseus Cluster, a collection of thousands of galaxies some 240 million light-years from Earth.
Left: The giant galaxy NGC 1275, at the core of the cluster, is seen in new detail, including a newly-revealed wealth of complex, filamentary structure in its radio lobes.
Center: The galaxy NGC 1265 shows the effects of its motion through the tenuous material between the galaxies. Its radio jets are bent backward by that interaction, then merge into a single, broad “tail.” The tail then is further bent, possibly by motions within the intergalactic material.
Right: The jets of the galaxy IC 310 are bent backward, similarly to NGC 1265, but appear closer because of the viewing angle from Earth. That angle also allows astronomers to directly observe energetic gamma rays generated near the supermassive black hole at the galaxy’s core.
Such images can help astronomers better understand the complex environment of galaxy clusters, which are the largest gravitationally-bound structures in the universe, and which harbor a variety of still poorly-understood phenomena.
“These images show us previously-unseen structures and details and that helps our effort to determine the nature of these objects,” said Marie-Lou Gendron-Marsolais, an ESO/ALMA Fellow in Santiago, Chile. She and a number of international collaborators are announcing their results in the Monthly Notices of the Royal Astronomical Society.
The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc.
CREDIT: M. Gendron-Marsolais et al.; S. Dagnello, NRAO/AUI/NSF; SDSS.
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This news article was originally published on the NRAO website on November 12, 2020.
Recent News
NSF NRAO Leads Critical Spectrum Studies to Safeguard Radio Astronomy
The U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) has received funding to expand its study of an invisible—and crucial—scientific and technological resource: the radio spectrum.
Largest Oort Cloud Comet Ever Observed Reveals Its Secrets with ALMA’s Powerful Gaze
A team of astronomers has made a groundbreaking discovery by detecting molecular activity in comet C/2014 UN271 (Bernardinelli-Bernstein)—the largest and second most distantly active comet ever observed from the Oort Cloud.
Unusual stellar nurseries near our galaxy’s center puzzle scientists
New research led by Dr. James De Buizer at the SETI Institute and Dr. Wanggi Lim at IPAC at Caltech revealed surprising results about the rate at which high-mass stars form in the galactic center of the Milky Way.