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- W4310289315 endingPage "137" @default.
- W4310289315 startingPage "137" @default.
- W4310289315 abstract "Abstract Flare-associated quasiperiodic pulsations (QPPs) in radio and X-ray wavelengths, particularly those related to nonthermal electrons, contain important information about the energy release and transport processes during flares. However, the paucity of spatially resolved observations of such QPPs with a fast time cadence has been an obstacle for us to further understand their physical nature. Here, we report observations of such a QPP event that occurred during the impulsive phase of a C1.8-class eruptive solar flare using radio imaging spectroscopy data from the Karl G. Jansky Very Large Array (VLA) and complementary X-ray imaging and spectroscopy data. The radio QPPs, observed by the VLA in the 1–2 GHz with a subsecond cadence, are shown as three spatially distinct sources with different physical characteristics. Two radio sources are located near the conjugate footpoints of the erupting magnetic flux rope with opposite senses of polarization. One of the sources displays a QPP behavior with a ∼5 s period. The third radio source, located at the top of the postflare arcade, coincides with the location of an X-ray source and shares a similar period of ∼25–45 s. We show that the two oppositely polarized radio sources are likely due to coherent electron cyclotron maser emission. On the other hand, the looptop QPP source, observed in both radio and X-rays, is consistent with incoherent gyrosynchrotron and bremsstrahlung emission, respectively. We conclude that the concurrent, but spatially distinct QPP sources must involve multiple mechanisms which operate in different magnetic loop systems and at different periods." @default.
- W4310289315 created "2022-11-30" @default.
- W4310289315 creator A5005899796 @default.
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- W4310289315 creator A5036796487 @default.
- W4310289315 creator A5057151817 @default.
- W4310289315 creator A5065661793 @default.
- W4310289315 date "2022-11-29" @default.
- W4310289315 modified "2023-09-30" @default.
- W4310289315 title "Multiple Regions of Nonthermal Quasiperiodic Pulsations during the Impulsive Phase of a Solar Flare" @default.
- W4310289315 cites W1481130533 @default.
- W4310289315 cites W1570260105 @default.
- W4310289315 cites W1660416739 @default.
- W4310289315 cites W1972539201 @default.
- W4310289315 cites W1973013793 @default.
- W4310289315 cites W1973133885 @default.
- W4310289315 cites W1987541545 @default.
- W4310289315 cites W1989400761 @default.
- W4310289315 cites W1999451901 @default.
- W4310289315 cites W2004964751 @default.
- W4310289315 cites W2014857002 @default.
- W4310289315 cites W2020594090 @default.
- W4310289315 cites W2023158271 @default.
- W4310289315 cites W2025713181 @default.
- W4310289315 cites W2026901531 @default.
- W4310289315 cites W2028257333 @default.
- W4310289315 cites W2032645177 @default.
- W4310289315 cites W2033520018 @default.
- W4310289315 cites W2034139177 @default.
- W4310289315 cites W2034819518 @default.
- W4310289315 cites W2039566826 @default.
- W4310289315 cites W2042084996 @default.
- W4310289315 cites W2048996257 @default.
- W4310289315 cites W2053422348 @default.
- W4310289315 cites W2055803167 @default.
- W4310289315 cites W2055985764 @default.
- W4310289315 cites W2056642213 @default.
- W4310289315 cites W2060809526 @default.
- W4310289315 cites W2073938066 @default.
- W4310289315 cites W2074823428 @default.
- W4310289315 cites W2087853854 @default.
- W4310289315 cites W2091859300 @default.
- W4310289315 cites W2092523780 @default.
- W4310289315 cites W2093288690 @default.
- W4310289315 cites W2093432746 @default.
- W4310289315 cites W2094483427 @default.
- W4310289315 cites W2100832392 @default.
- W4310289315 cites W2111123906 @default.
- W4310289315 cites W2120615287 @default.
- W4310289315 cites W2121731345 @default.
- W4310289315 cites W2122275575 @default.
- W4310289315 cites W2142234851 @default.
- W4310289315 cites W2147626801 @default.
- W4310289315 cites W2154454170 @default.
- W4310289315 cites W2158612941 @default.
- W4310289315 cites W2165566451 @default.
- W4310289315 cites W2170169706 @default.
- W4310289315 cites W2279222439 @default.
- W4310289315 cites W2295405655 @default.
- W4310289315 cites W2346573377 @default.
- W4310289315 cites W2437715502 @default.
- W4310289315 cites W2500528255 @default.
- W4310289315 cites W2517245689 @default.
- W4310289315 cites W2790780588 @default.
- W4310289315 cites W2888532099 @default.
- W4310289315 cites W2919181260 @default.
- W4310289315 cites W2931047978 @default.
- W4310289315 cites W2946669996 @default.
- W4310289315 cites W2952320295 @default.
- W4310289315 cites W2982308334 @default.
- W4310289315 cites W3005640358 @default.
- W4310289315 cites W3014299018 @default.
- W4310289315 cites W3088740969 @default.
- W4310289315 cites W3098143950 @default.
- W4310289315 cites W3098600591 @default.
- W4310289315 cites W3098746151 @default.
- W4310289315 cites W3099293918 @default.
- W4310289315 cites W3099459395 @default.
- W4310289315 cites W3099678725 @default.
- W4310289315 cites W3100007032 @default.
- W4310289315 cites W3100686532 @default.
- W4310289315 cites W3102551485 @default.
- W4310289315 cites W3103344713 @default.
- W4310289315 cites W3103434160 @default.
- W4310289315 cites W3103567463 @default.
- W4310289315 cites W3103759520 @default.
- W4310289315 cites W3104388850 @default.
- W4310289315 cites W3104703771 @default.
- W4310289315 cites W3104742440 @default.
- W4310289315 cites W3104932328 @default.
- W4310289315 cites W3104999612 @default.
- W4310289315 cites W3105054806 @default.
- W4310289315 cites W3105168506 @default.
- W4310289315 cites W3105303679 @default.
- W4310289315 cites W3105327236 @default.
- W4310289315 cites W3105415537 @default.
- W4310289315 cites W3105815960 @default.
- W4310289315 cites W3106142876 @default.