A second source of repeating fast radio bursts
| العنوان: | A second source of repeating fast radio bursts |
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| المؤلفون: | P. J. Boyle, M. Fandino, J. Mena-Parra, Ue-Li Pen, P. Boubel, M. Rafiei-Ravandi, Laura Newburgh, Mohit Bhardwaj, C. Brar, Shriharsh P. Tendulkar, M. A. Dobbs, Deborah C. Good, Kiyoshi Masui, P. Chawla, C. Höfer, D. Michilli, Kevin Bandura, Emmanuel Fonseca, Ajay Gill, J. R. Shaw, M. Burhanpurkar, M. Deng, Mandana Amiri, C. Patel, A. Renard, M. M. Boyce, P. Yadav, C. Moatti, Bryan Gaensler, A. Josephy, A. Naidu, Scott M. Ransom, Gary Hinshaw, David Hanna, A. Gilbert, I. Tretyakov, Seth Siegel, Nolan Denman, Chime, Alex S. Hill, U. Giri, Keith Vanderlinde, Ziggy Pleunis, T. Cassanelli, Mubdi Rahman, M. Merryfield, Mark Halpern, Ingrid H. Stairs, R. Mckinven, Dustin Lang, D. Cubranic, T. Pinsonneault-Marotte, Hsiu-Hsien Lin, Kendrick M. Smith, J. F. Cliche, Paul Scholz, Victoria M. Kaspi, T. L. Landecker, Cherry Ng, N. Milutinovic |
| المصدر: | arXiv |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | High Energy Astrophysical Phenomena (astro-ph.HE), Physics, education.field_of_study, Multidisciplinary, 010308 nuclear & particles physics, Fast radio burst, Milky Way, Canadian Hydrogen Intensity Mapping Experiment, media_common.quotation_subject, Population, FOS: Physical sciences, Astrophysics, 01 natural sciences, Redshift, Radio telescope, Sky, 0103 physical sciences, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, education, Second source, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, media_common |
| الوصف: | The discovery of a repeating Fast Radio Burst (FRB) source, FRB 121102, eliminated models involving cataclysmic events for this source. No other repeating FRB has yet been detected in spite of many recent FRB discoveries and follow-ups, suggesting repeaters may be rare in the FRB population. Here we report the detection of six repeat bursts from FRB 180814.J0422+73, one of the 13 FRBs detected by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) FRB project during its pre-commissioning phase in July and August 2018. These repeat bursts are consistent with originating from a single position on the sky, with the same dispersion measure (DM), ~189 pc cm-3. This DM is approximately twice the expected Milky Way column density, and implies an upper limit on the source redshift of 0.1, at least a factor of ~2 closer than FRB 121102. In some of the repeat bursts, we observe sub-pulse frequency structure, drifting, and spectral variation reminiscent of that seen in FRB 121102, suggesting similar emission mechanisms and/or propagation effects. This second repeater, found among the first few CHIME/FRB discoveries, suggests that there exists -- and that CHIME/FRB and other wide-field, sensitive radio telescopes will find -- a substantial population of repeating FRBs. Comment: accepted by Nature |
| وصف الملف: | application/pdf |
| تدمد: | 1476-4687 0028-0836 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82325fca7686fe0e443e135615f7eab1 https://doi.org/10.1038/s41586-018-0864-x |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....82325fca7686fe0e443e135615f7eab1 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 14764687 00280836 |
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