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Chromatic periodic ...
Chromatic periodic activity down to 120 megahertz in a fast radio burst
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- Pastor-Marazuela, Ines (author)
- Universiteit Van Amsterdam,University of Amsterdam,Netherlands Institute for Radio Astronomy (ASTRON)
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- Connor, Liam (author)
- Netherlands Institute for Radio Astronomy (ASTRON),Universiteit Van Amsterdam,University of Amsterdam,California Institute of Technology (Caltech)
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- van Leeuwen, Joeri (author)
- Universiteit Van Amsterdam,University of Amsterdam,Netherlands Institute for Radio Astronomy (ASTRON)
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- Maan, Yogesh (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- ter Veen, Sander (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Bilous, Anna (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Oostrum, Leon (author)
- Universiteit Van Amsterdam,University of Amsterdam,Netherlands eScience Center,Netherlands Institute for Radio Astronomy (ASTRON)
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- Petroff, Emily (author)
- Universiteit Van Amsterdam,University of Amsterdam
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- Straal, Samayra (author)
- New York University
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- Vohl, Dany (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Attema, Jisk (author)
- Netherlands eScience Center
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- Boersma, Oliver M. (author)
- Universiteit Van Amsterdam,University of Amsterdam,Netherlands Institute for Radio Astronomy (ASTRON)
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- Kooistra, Eric (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- van der Schuur, Daniel (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Sclocco, Alessio (author)
- Netherlands eScience Center
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- Smits, Roy (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Adams, Elizabeth A. K. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Adebahr, Bjoern (author)
- Ruhr-Universität Bochum
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- de Blok, W. J. G. (author)
- Netherlands Institute for Radio Astronomy (ASTRON),University of Cape Town
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- Coolen, Arthur H. W. M. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Damstra, Sieds (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Denes, Helga (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Hess, Kelley M. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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van der Hulst, Thijs (author)
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- Ivashina, Marianna, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kutkin, Alexander (author)
- Russian Academy of Sciences,Netherlands Institute for Radio Astronomy (ASTRON)
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- Loose, G. Marcel (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Lucero, Danielle M. (author)
- Virginia Polytechnic Institute and State University (Virginia Tech)
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- Mika, Agnes (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Moss, Vanessa A. (author)
- Netherlands Institute for Radio Astronomy (ASTRON),Commonwealth Scientific and Industrial Research Organisation (CSIRO),The University of Sydney
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- Mulder, Henk (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Norden, Menno J. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Oosterloo, Tom (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Orru, Emanuela (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Ruiter, Mark (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Wijnholds, Stefan J. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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(creator_code:org_t)
- 2021-08-25
- 2021
- English.
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In: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 596:7873, s. 505-508
- Related links:
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https://pure.rug.nl/...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Fast radio bursts (FRBs) are extragalactic astrophysical transients(1) whose brightness requires emitters that are highly energetic yet compact enough to produce the short, millisecond-duration bursts. FRBs have thus far been detected at frequencies from 8 gigahertz (ref. (2)) down to 300 megahertz (ref. (3)), but lower-frequency emission has remained elusive. Some FRBs repeat(4-6), and one of the most frequently detected, FRB 20180916B(7), has a periodicity cycle of 16.35 days (ref. (8)). Using simultaneous radio data spanning a wide range of wavelengths (a factor of more than 10), here we show that FRB 20180916B emits down to 120 megahertz, and that its activity window is frequency dependent (that is, chromatic). The window is both narrower and earlier at higher frequencies. Binary wind interaction models predict a wider window at higher frequencies, the opposite of our observations. Our full-cycle coverage shows that the 16.3-day periodicity is not aliased. We establish that low-frequency FRB emission can escape the local medium. For bursts of the same fluence, FRB 20180916B is more active below 200 megahertz than at 1.4 gigahertz. Combining our results with previous upper limits on the all-sky FRB rate at 150 megahertz, we find there are 3-450 FRBs in the sky per day above 50 Jy ms. Our chromatic results strongly disfavour scenarios in which absorption from strong stellar winds causes FRB periodicity. We demonstrate that some FRBs are found in 'clean' environments that do not absorb or scatter low-frequency radiation. The fast radio burst FRB 20180916B repeats with a periodicity of 16 days, and is now found to emit down to a frequency of 120 MHz, much lower than previously observed.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
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Nature
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- By the author/editor
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Pastor-Marazuela ...
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Connor, Liam
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van Leeuwen, Joe ...
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Maan, Yogesh
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ter Veen, Sander
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Bilous, Anna
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show more...
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Oostrum, Leon
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Petroff, Emily
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Straal, Samayra
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Vohl, Dany
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Attema, Jisk
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Boersma, Oliver ...
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Kooistra, Eric
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van der Schuur, ...
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Sclocco, Alessio
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Smits, Roy
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Adams, Elizabeth ...
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Adebahr, Bjoern
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de Blok, W. J. G ...
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Coolen, Arthur H ...
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Damstra, Sieds
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Denes, Helga
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Hess, Kelley M.
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van der Hulst, T ...
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Ivashina, Marian ...
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Kutkin, Alexande ...
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Loose, G. Marcel
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Lucero, Danielle ...
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Mika, Agnes
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Moss, Vanessa A.
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Mulder, Henk
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Norden, Menno J.
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Oosterloo, Tom
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Orru, Emanuela
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Ruiter, Mark
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Wijnholds, Stefa ...
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NATURAL SCIENCES
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Chalmers University of Technology