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Probably should have been here, but needs a crosslink anyway:
Space Exploration topic methane detected in exoplanet's atmosphere (More direct: NASA news release: Hubble Detects Organic Molecule on an Extrasolar Planet)
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Ten new SuperWASP planets (follow this thread).
No much information about the planets is available yet. From the news release: Quote:
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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Let's do some wild extrapolation:
Now a total of 16 new planets have been discovered in 2008 so far. However, only 1/4th of the year has passed. That means if the current rate continues, at the end of the year we should have a total of 64 planets, surpassing the record year 2007. On the other hand, in the period of 2002-06 the average number of new planets/year was only 30. If the transit method is finally delivering its promise, 60+ planets in this year is what we can realistically expect. PS. The COROT team is following 100 planet candidates, and discovery papers are being prepared so one can expect news from them sooner or later...
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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HL Tau b, a planet less than 2000 years old!?
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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Information on the planets is now on-line.
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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I'll guess 90, based heavily on wishful thinking.
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Lighten up! This is a stellar board! Author: duh. "The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do..." Author: Galileo supposedly. |
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One can always hope, but there is a serious limit on the availability of telescope time. Even if the transit method was much more productive than it has turned out to be, the number of new discoveries couldn't be dramatically higher because each discovery must be confirmed by measuring the radial velocities. Large majority of promising candidates turn out to be false positives, unfortunately.
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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I was afraid that might be the case. Do you have an idea when we might see a noticeable rate increase?
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Lighten up! This is a stellar board! Author: duh. "The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do..." Author: Galileo supposedly. |
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What counts as a noticeable increase? We were just given the by far biggest batch of transiting planets so far. Last year we saw a big jump in transiting planet discoveries, and it is not impossible that in this year most planets will be found using the transit method.
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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I was thinking about new scopes or new mass surveys coming on-line to assist the search. I don't recall anything coming up in the next several months, but there are some nice spacecraft planned.
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Lighten up! This is a stellar board! Author: duh. "The Sun, with all the planets revolving around it, and depending on it, can still ripen a bunch of grapes as though it had nothing else in the universe to do..." Author: Galileo supposedly. |
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Kullat Nunu,
I love this thread, thanks. How did you come by the "100 planet candidates" figure? Is this more than just a guess on your part? It is fun to speculate on how many new planets will be discovered/announced in a given year. Each year new planets are discovered and the discoveries that astronomers are sure enough about from previous years are announced. Clearly there will be a time when the number of extrasolar planet discoveries really accelerates and the number of candidates piles near a thousand. That time, as the new SuperWASP results and probable COROT results imply, may not be too far off. |
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Quote:
Quote:
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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I kept in mind ( waiting anxious... ) end of februari as being the time when the new Corot discoveries were anounced to be published by Esa.
We surpassed with one month now. Has anybody an idea if Esa released a new date for the next releases ? |
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Quote:
http://arxiv.org/abs/0803.3202 http://arxiv.org/abs/0803.3207 http://arxiv.org/abs/0803.3209 Enjoy. |
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There are reports on the discovery of Gliese 436 c, "the smallest planet found so far". Unfortunately and unlike the various news articles suggest, the discovery is still far from certain. It would be great if the planet is confirmed: the previously found planet, Gliese 436 b is a transiting planet which means that any other planets orbit probably very close to edge-on (as a matter of fact, Gliese 436 b is a hot Neptune and only transiting planet of its kind). The inferred minimum mass of ~5 times Earth's would therefore be close to the true value. In addition, if we are exceptionally lucky, we could see transits of the secondary planet!
Even though the existence of the planet is unclear, the eccentric orbit of Gliese 436 b strongly suggests that it is not the only planet in the system. Only time and more radial velocity measurements will tell if the suggested planet really exists.
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |
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What conditions can be on it?If it has a Venuslike albedo and atmosphere, then it must be melting hot according to this http://www.astro.indiana.edu/~gsimon...perature1.html.
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Alonso et al. report that they are unable to confirm the existence of Gliese 436 c.
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. -- Richard Feynman |