Extreme intra-hour variability of the radio source J1402+5347 discovered with Apertif
| العنوان: | Extreme intra-hour variability of the radio source J1402+5347 discovered with Apertif |
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| المؤلفون: | Kelley M. Hess, Henk Mulder, J. van Leeuwen, Tom Oosterloo, R. H. S. van den Brink, Stefan J. Wijnholds, M. J. Norden, J. Ziemke, Helga Denes, B. Adebahr, Yogesh Maan, B. Hut, L. C. Oostrum, R. Morganti, N. J. Vermaas, Elizabeth A. K. Adams, Vanessa A. Moss, A. M. Kutkin, Robert Schulz, J. M. van der Hulst, Emanuela Orru, D. M. Lucero, Harish Vedantham, W. J. G. de Blok, Dany Vohl, G. M. Loose, S. Damstra, A. R. Offringa, M. Ruiter, A. H. W. M. Coolen |
| المساهمون: | Astronomy, Kapteyn Astronomical Institute, API Other Research (FNWI), High Energy Astrophys. & Astropart. Phys (API, FNWI) |
| المصدر: | Astronomy & astrophysics, 641:L4. EDP Sciences Astronomy & Astrophysics Astronomy & Astrophysics, 641:L4. EDP Sciences |
| بيانات النشر: | EDP Sciences, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Astrophysics::High Energy Astrophysical Phenomena, Milky Way, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, ISM: clouds, 01 natural sciences, Apparent magnitude, Angular diameter, 0103 physical sciences, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Scintillation, 010308 nuclear & particles physics, scattering, Astronomy and Astrophysics, Light curve, Astrophysics - Astrophysics of Galaxies, Galaxy, Interstellar medium, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Astrophysics - High Energy Astrophysical Phenomena, Radio wave |
| الوصف: | The propagation of radio waves from distant compact radio sources through turbulent interstellar plasma in our Galaxy causes these sources to twinkle, a phenomenon called interstellar scintillation. Such scintillations are a unique probe of the micro-arcsecond structure of radio sources as well as of the sub-AU-scale structure of the Galactic interstellar medium. Weak scintillations (i.e. an intensity modulation of a few percent) on timescales of a few days or longer are commonly seen at centimetre wavelengths and are thought to result from the line-of-sight integrated turbulence in the interstellar plasma of the Milky Way. So far, only three sources were known that show more extreme variations, with modulations at the level of some dozen percent on timescales shorter than an hour. This requires propagation through nearby (d ~ 10^ 14K. } Comment: Accepted for Astronomy and Astrophysics Letters |
| وصف الملف: | application/pdf |
| تدمد: | 1432-0746 0004-6361 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ece38b01ed9f9667db575658c5e673b https://doi.org/10.1051/0004-6361/202038378 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....5ece38b01ed9f9667db575658c5e673b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320746 00046361 |
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