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Title: GMRT observations of jupiter's synchrotron radio emission at 610 MHz
Authors: Bhardwaj, A.
Ishwara-Chandra, C.H.
Udaya Shankar, N.
Misawa, H.
Imai, K.
Miyoshi, Y.
Tsuchiya, F.
Kondo, T.
Morioka, A.
Issue Date: Sep-2009
Publisher: Astronomical Society of the Pacific
Citation: ASP Conference Series, 2009, Vol.407, p369
Abstract: The non-thermal decimeteric radio emission from Jupiter is dominated by synchrotron emission originating from high-energy electrons trapped in Jupiter's inner radiation belt (<5 Jovian radii). We observed Jupiter during February 24 -- March 3, 2003 with the GMRT to study its day-to-day variability. Each day's observations lasted for ˜10 hours (the rotation period of Jupiter). These observations suggest a correlation between the Jupiter radio flux density and the solar radio flux density at 10.7 cm (which is a proxy for solar EUV flux). Short-term variability (flux density change by ~20%) seen at 610 MHz in 6-day observation seems to be due to enhanced solar EUV activity. This is the first result reporting the short-term variability in Jupiter synchrotron radiation at 610 MHz. The results have implications for Jovian radiation belt dynamics and upper atmospheric processes.
Description: Restricted Access. Proceedings of the conference held 8-12 December 2008, at National Centre for Radio Astrophysics (NCRA), TIFR, Pune, India. Edited by D. J. Saikia, D. A. Green, Y. Gupta, and T. Venturi. San Francisco: Astronomical Society of the Pacific.
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Copyright: 2009 Astronomical Society of the Pacific.
Appears in Collections:Research Papers (A&A)

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