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Abstract
We report the first attempt to observe the secondary eclipse of a transiting extra-solar planet at radio wavelengths. We observed HD 189733 b with the Robert C. Byrd Green Bank Telescope of the National Radio Astronomy Observatory (NRAO) over about 5.5 h before, during and after secondary eclipse, at frequencies of 307-347 MHz. In this frequency range, we determine the 3s upper limit to the flux density to be 81 mJy. The data are consistent with no eclipse or a marginal reduction in flux at the time of secondary eclipse in all subsets of our bandwidth; the strongest signal is an apparent eclipse at the 2 sigma level in the 335.2-339.3 MHz region. Our observed upper limit is close to theoretical predictions of the flux density of cyclotron-maser radiation from the planet.
Original language | English |
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Pages (from-to) | 335-341 |
Number of pages | 7 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 395 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 May 2009 |
Keywords
- masers
- stars: magnetic fields
- planetary systems
- radio continuum: stars
- EXTRASOLAR PLANETS
- SEARCH
- EMISSION
- JUPITER
- HD-189733
- SYSTEM
- STAR
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Dive into the research topics of 'Secondary radio eclipse of the transiting planet HD 189733 b: an upper limit at 307-347 MHz'. Together they form a unique fingerprint.Projects
- 2 Finished
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Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089
Bonnell, I. A. (PI), Cameron, A. C. (CoI), Dominik, M. (CoI), Driver, S. P. (CoI), Greaves, J. S. (CoI), Horne, K. D. (CoI), Jardine, M. M. (CoI), Wood, K. (CoI) & Zhao, H. (CoI)
Science & Technology Facilities Council
1/04/09 → 31/03/12
Project: Standard
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Astrophysics at St Andrews: Astrophysics at St.Andrews
Cameron, A. C. (PI) & Horne, K. D. (CoI)
1/04/06 → 31/03/11
Project: Standard