Using Webb astronomers have for the first time identified the source of a fast radio burst
Astronomers using the Webb Space Telescope have now successfully pinpointed a specific object that appears to be the source for a fast radio burst (FRB), extra-galactic short bursts of radio energy whose cause and origin have up-to-now been unexplained.
Blanchard and his team used a discovery of an FRB in a nearby galaxy made with the CHIME Outriggers array, a radio telescope in Canada, which was recently upgraded to enable FRB detections with precise positions. The researchers then turned to NASA’s James Webb Space Telescope to look for an infrared signal from the same location.
…The infrared data revealed an object, dubbed NIR-1, that is likely a red giant star or possibly a middle-aged massive star. A red giant is a Sun-like star near the end of its life that has expanded and brightened, while the other possibility is a star much more massive than the Sun.
Although these stars are unlikely to directly produce FRBs, the scientists say, they may have an unseen companion, such as a neutron star, pulling material away from the red giant or massive star. This process of transferring mass
The burst itself occurred on March 16, 2025 about 130 million light-years away in the galaxy NGC 4141. You can read the discovery paper here [pdf].
There remain of course great uncertainties. For one, NIR-1 is itself not likely the cause of the FRB, but related to its source in some manner. The scientists posit a number of explanations, from either an unseen magnetar (a pulsar with a powerful magnetic field), or a flare from this massive star reflecting off that unseen magnetar.
Regardless, this discovery helps narrow the theories considerably.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
Astronomers using the Webb Space Telescope have now successfully pinpointed a specific object that appears to be the source for a fast radio burst (FRB), extra-galactic short bursts of radio energy whose cause and origin have up-to-now been unexplained.
Blanchard and his team used a discovery of an FRB in a nearby galaxy made with the CHIME Outriggers array, a radio telescope in Canada, which was recently upgraded to enable FRB detections with precise positions. The researchers then turned to NASA’s James Webb Space Telescope to look for an infrared signal from the same location.
…The infrared data revealed an object, dubbed NIR-1, that is likely a red giant star or possibly a middle-aged massive star. A red giant is a Sun-like star near the end of its life that has expanded and brightened, while the other possibility is a star much more massive than the Sun.
Although these stars are unlikely to directly produce FRBs, the scientists say, they may have an unseen companion, such as a neutron star, pulling material away from the red giant or massive star. This process of transferring mass
The burst itself occurred on March 16, 2025 about 130 million light-years away in the galaxy NGC 4141. You can read the discovery paper here [pdf].
There remain of course great uncertainties. For one, NIR-1 is itself not likely the cause of the FRB, but related to its source in some manner. The scientists posit a number of explanations, from either an unseen magnetar (a pulsar with a powerful magnetic field), or a flare from this massive star reflecting off that unseen magnetar.
Regardless, this discovery helps narrow the theories considerably.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The print edition can be purchased at Amazon or from any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
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