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Fast radio bursts shown to include lower frequency radio waves than previously detected


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IMAGE: A burst from the periodically active repeating fast radio burst source 20180916B arrives at the LOFAR telescope. The higher frequency radio waves (purple) arrive earlier than the lower frequency radio.
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Credit: Futselaar / ASTRON / Tendulkar
Since fast radio bursts (FRBs) were first discovered over a decade ago, scientists have puzzled over what could be generating these intense flashes of radio waves from outside of our galaxy. In a gradual process of elimination, the field of possible explanations has narrowed as new pieces of information are gathered about FRBs - how long they last, the frequencies of the radio waves detected, and so on. ....

United Kingdom , British Columbia , Daniele Michilli , Ziggy Pleunis , Katherine Gombay , Mcgill Department Of Physics , National Research Council Of Canada , Dunlap Institute For Astronomy , Natural Sciences , Canadian Institute For Advanced Research , Perimeter Institute For Theoretical Physics , University Of Toronto , Engineering Research Council , University Of British Columbia , Mcgill University , Mcgill University Is Canada , Department Of Physics At Mcgill , Mcgill Media Relations Office , Canada Foundation For Innovation , Radio Burst , Astrophysical Journal , Low Frequency Array , Radio Burst Collaboration , Perimeter Institute , Theoretical Physics , National Research Council ,

Milky Way magnetar likely source of fast radio burst – Astronomy Now


An artist’s impression of a magnetar generating a high-energy flare showing the collapsed star’s complex magnetic field and a beamed polar emission. Image: McGill University Graphic Design Team
For the first time, astronomers have detected a fast radio burst, or FRB, in the Milky Way, a titanic outburst of X-rays and radio waves that was generated in a fraction of a second. Until now, FRBs were only seen in other galaxies and their sources were a mystery.
Now, astronomers at multiple institutions have pinpointed the FRB spotted in the Milky Way and conclude it most likely was generated by a magnetar, a super-magnetised neutron star with many times the mass of the Sun. The magnetic field generated by a magnetar can be a thousand times more intense than that of a typical neutron star. ....

United Kingdom , Chris Bochenek , Paul Scholz , University Of Toronto , University Of British Columbia , Canadian Hydrogen Intensity Mapping Experiment , Mcgill University , Mcgill University Graphic Design Team , Mcgill University Graphic Design , Milky Way , Dominion Radio Astrophysical Observatory , British Columbia , Dunlap Institute , ஒன்றுபட்டது கிஂக்டம் , பால் ஸ்கோல்ஸ் , பல்கலைக்கழகம் ஆஃப் டொராண்டோ , பல்கலைக்கழகம் ஆஃப் பிரிட்டிஷ் கொலம்பியா , கனடியன் ஹைட்ரஜன் தீவிரம் விவரணையாக்கம் சோதனை , மகில் பல்கலைக்கழகம் , மகில் பல்கலைக்கழகம் கிராஃபிக் வடிவமைப்பு அணி , மகில் பல்கலைக்கழகம் கிராஃபிக் வடிவமைப்பு , பால் வழி , ஆதிக்கம் வானொலி வானியற்பியல் கண்காணிப்பு , பிரிட்டிஷ் கொலம்பியா , டன்லப் நிறுவனம் ,