Bhardwaj, A;
Branduardi-Raymont, G;
Elsner, RF;
Gladstone, GR;
Ramsay, G;
Rodriguez, P;
Soria, R;
... Cravens, TE; + view all
(2005)
Solar control on Jupiter's equatorial X-ray emissions: 26-29 November 2003 XMM-Newton observation.
Geophysical Research Letters
, 32
(3)
, Article L03S08. 10.1029/2004GL021497.
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Abstract
During Nov. 26 - 29, 2003 XMM-Newton observed soft (0.2 - 2 keV) X-ray emission from Jupiter for 69 hours. The low-latitude X-ray disk emission of Jupiter is observed to be almost uniform in intensity with brightness that is consistent with a solar-photon driven process. The simultaneous light curves of Jovian equatorial X rays and solar X rays ( measured by the TIMED/SEE and GOES satellites) show similar day-to-day variability. A large solar X-ray flare occurring on the Jupiter-facing side of the Sun is found to have a corresponding feature in the Jovian X rays. These results support the hypothesis that X-ray emission from Jovian low-latitudes are solar X rays scattered from the planet's upper atmosphere, and suggest that the Sun directly controls the non-auroral X rays from Jupiter's disk. Our study also suggests that Jovian equatorial X rays can be used to monitor the solar X-ray flare activity on the hemisphere of the Sun that is invisible to space weather satellites.
| Type: | Article |
|---|---|
| Title: | Solar control on Jupiter's equatorial X-ray emissions: 26-29 November 2003 XMM-Newton observation |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1029/2004GL021497 |
| Publisher version: | http://dx.doi.org/10.1029/2004GL021497 |
| Language: | English |
| Additional information: | Copyright 2005 by the American Geophysical Union |
| Keywords: | Scattering, Planets |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/140334 |
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