TY - JOUR
T1 - Radio Emission from Masuda Sources
AU - Park, S. H.
AU - Fleishman, Gregory
N1 - Funding Information:
Acknowledgements We are grateful to the referee for the careful reading of the manuscript and constructive comments. SP was supported by NASA grants NNX08-8BA22G and NNX08-AQ90G. GDF was supported in part by NSF grants ATM-0707319, AGS-0961867, and AST-0908344, and NASA grant NNX10AF27G to New Jersey Institute of Technology, and by the Russian Foundation for Basic Research, grants Nos. 08-02-92228, 09-02-00226, 09-02-00624. We have made use of NASA’s Astrophysics Data System Abstract Service.
PY - 2010
Y1 - 2010
N2 - We note that different models, providing comparably good interpretation of the hard X-ray properties of so-called Masuda sources, can make distinctly different predictions for the radio emission produced at the Masuda source by the same population of accelerated electrons. Accordingly, we calculate the radio emission within a few competing models, i. e., those involving magnetic, turbulent, and collisional trapping of the fast electrons in the coronal source. We show that even available incomplete radio observations of the classical Masuda event and a Masuda-like event on 31 December 2007, recently reported by Krucker et al. (Astrophys. J. 714, 1108, 2010) are highly valuable in restricting the physical model of the source. Furthermore, our study proposes that combination of more complete high-resolution X-ray and radio observations can allow unambiguous distinction between the competing Masuda source models.
AB - We note that different models, providing comparably good interpretation of the hard X-ray properties of so-called Masuda sources, can make distinctly different predictions for the radio emission produced at the Masuda source by the same population of accelerated electrons. Accordingly, we calculate the radio emission within a few competing models, i. e., those involving magnetic, turbulent, and collisional trapping of the fast electrons in the coronal source. We show that even available incomplete radio observations of the classical Masuda event and a Masuda-like event on 31 December 2007, recently reported by Krucker et al. (Astrophys. J. 714, 1108, 2010) are highly valuable in restricting the physical model of the source. Furthermore, our study proposes that combination of more complete high-resolution X-ray and radio observations can allow unambiguous distinction between the competing Masuda source models.
KW - Corona, radio emission
KW - Energetic particles, electrons
KW - Flares, dynamics
KW - Magnetic fields, corona
KW - Plasma physics
KW - Radio bursts, association with flares
KW - Radio bursts, theory
UR - http://www.scopus.com/inward/record.url?scp=77957242019&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957242019&partnerID=8YFLogxK
U2 - 10.1007/s11207-010-9614-4
DO - 10.1007/s11207-010-9614-4
M3 - Article
AN - SCOPUS:77957242019
SN - 0038-0938
VL - 266
SP - 323
EP - 335
JO - Solar Physics
JF - Solar Physics
IS - 2
ER -