X-ray observations of the transits (HD 189733b again !!)

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X-ray observations of the transits (HD 189733b again !!)

Post by Led_Zep on 29th July 2013, 4:48 pm


For the first time since exoplanets, or planets around stars other than the sun, were discovered almost 20 years ago, X-ray observations have detected an exoplanet passing in front of its parent star.
An advantageous alignment of a planet and its parent star in the system HD 189733, which is 63 light-years from Earth, enabled NASA's Chandra X-ray Observatory and the European Space Agency's XMM Newton Observatory to observe a dip in X-ray intensity as the planet transited the star.

Paper on arXiv :

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