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Interesting (Thanks Ron);
It seems they're hypothesising that the planet exists in the first place:
“We also have good reasons to believe that two other planets are present, says Lovis".
I guess they can deduce its mass from the "wobble of only 3 km/hour", (if they can measure that), but they kind of skimmed over the bit on how they came to the conclusion that this planet is "a hot, rocky planet, similar to Corot-7b".
There was a stage when they were looking for the atmosphere trails left behind these exoplanets, to work out their chemical composition. I wonder whether they've used this technique on any of these discoveries ?
Have to see if we can get the paper & have a read.
Interesting ... thanks again.
Cheers
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