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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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Don't hold your breath. Nowadays only the most interesting extrasolar planet discoveries are noticed. Understandably so, as there are so many "ordinary" planets found.
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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 other websites will be updated with the information? I'm assuming that the extrasolar encyclopedia will be one of them.
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Yes, and the discoverers' websites are usually up-to-date. You might find some new discoveries at the arXiv.org preprint service. Otherwise, you just have to wait.
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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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Some planets announced in the Santorini conference by the Geneva team have been released to public:
*HD 43691 b and HD 132406 b, both orbit metal rich stars *HD 171028 b, a planet around a metal-poor star
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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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The existence of a planet around a star and the star's metallicity is strongly correlated--but only in the case of low-mass stars. A new study suggests that no such correlation exist among giant stars. It is possible that the observed metallicity is not intrinsic, but pollution from protoplanetary disks. When a star expands into a giant, its atmosphere becomes better mixed and the extra metals disappear.
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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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A 3-year infrared search of extrasolar planets resulted in zero detections suggesting that super-massive Jovian planets are rare in distant orbits.
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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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Conclusive evidence of water vapor in an extrasolar planet's atmosphere (see this thread).
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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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It might mean that habitable earth-type planets in earth orbits are equally rare. |
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Not necessarily. The paper says that almost certainly less than 20% of stars have supermassive Jovians (> 4 Mj) in large orbital distances (20-100 AU).
Which is hardly surprising. In our Solar System, the existence of outer ice giants become problematic if we don't take migration into account. It is hard to see how a far more massive supergiant could form at these distances, except if it is a some sort of sub-brown dwarf instead. So, no bad news except that it will take longer until new planets can be found using infrared imaging.
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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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Is migration of large planets and subsequent merging with inner planets a likely scenario? Perhaps not as I understand they have very weak densities, though I don't know what percent.
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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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http://www.extrasolar.net/planettour...al&PlanetID=17 http://www.extrasolar.net/planettour...l&PlanetId=175 http://www.extrasolar.net/planettour...l&PlanetId=192 http://www.extrasolar.net/planettour...l&PlanetID=138 http://www.extrasolar.net/planettour...l&PlanetID=213 http://www.extrasolar.net/planettour...l&PlanetID=214 http://www.extrasolar.net/planettour...l&PlanetId=280 http://www.extrasolar.net/planettour...l&PlanetId=302 http://www.extrasolar.net/planettour...l&PlanetId=201 http://www.extrasolar.net/planettour...l&PlanetId=300 http://www.extrasolar.net/planettour...l&PlanetId=253 http://www.extrasolar.net/planettour...l&PlanetId=199 http://www.extrasolar.net/planettour...l&PlanetId=311 http://www.extrasolar.net/planettour...al&PlanetId=73 that planet was Jupiterlike when it's star was on the main sequence, now it has more Marslike climate but enough to thaw ice on it's moons... And there is Neptune-like (in climate, not mass) planet inferred in 40 Eri; http://www.extrasolar.net/planettour...l&PlanetId=236 And this is only from good old EV! Last edited by m1omg; 13-July-2007 at 09:45 AM. |
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Even lifebearing planets may exist in systems with Hot Jupiters... |
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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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All those planets orbit closer than Jupiter and most of them have high eccentricities. A Jovian planet at a distance of our asteroid belt would prevent an Earth-like planet from forming.
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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 |