| Who will be first to detect Earth-mass planet? | |
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+5Edasich marasama Lazarus NuclearVacuum Sirius_Alpha 9 posters |
Which will be first to detect an ~Earth-mass planet? | CoRoT (Photometry) | | 7% | [ 1 ] | HARPS (Doppler Spectroscopy) | | 20% | [ 3 ] | Keck (Doppler Spectroscopy / Photometry) | | 7% | [ 1 ] | Kepler (Photometry) | | 47% | [ 7 ] | OGLE (Gravitational Lensing/Photometry) | | 7% | [ 1 ] | TrES / WASP / XO / HATnet (Photometry) | | 0% | [ 0 ] | Other. | | 12% | [ 2 ] |
| Total Votes : 15 | | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Who will be first to detect Earth-mass planet? 22nd December 2008, 1:19 am | |
| Not a lot going on, so I decided to ask what everyone thought about what would be the first group to detect an Earth-mass planet. Transiting/non-transiting, habitable/hellish, doesn't matter. Just as long as it's mass is ~ 1 M_earth.
Edit: With the announcement of Gliese 581 e, I think I should refine "~ 1 M_earth" to be any planet whose mass is between 0.9 M_earth to 1.1 M_earth, as stated in a post after this. _________________ Caps Lock: Cruise control for 'Cool'!
Last edited by Sirius_Alpha on 22nd April 2009, 7:10 pm; edited 2 times in total | |
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NuclearVacuum Terrestrial Planet
Number of posts : 155 Age : 34 Location : Delta Trianguli Registration date : 2008-07-05
| Subject: Re: Who will be first to detect Earth-mass planet? 22nd December 2008, 10:36 am | |
| THE RUSSIANS!!!!!!!!!! _________________ I'm a renegade, fear me!
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Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: Who will be first to detect Earth-mass planet? 22nd December 2008, 1:28 pm | |
| Does this count? - Quote :
- Thus, our discovery of MOA-2007-BLG-192Lb represents the first discovery of an extrasolar planet with a planetary mass ratio orbiting an extremely low-mass primary that is likely to be a brown dwarf, and with a mass of m = 3.3+4.9−1.6 M⊕ (or a 2-σ range of 1.0–18 M⊕)
Sure, the 1 Earth mass case lies at the end of the 2-σ range, but you never know... | |
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marasama SuperEarth
Number of posts : 220 Location : Earth Registration date : 2008-04-22
| Subject: Re: Who will be first to detect Earth-mass planet? 22nd December 2008, 2:14 pm | |
| I voted for OGLE, and MOA-2007-BLG-192Lb helps support my thought. _________________ Thanks, CarpD (^_^)
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Who will be first to detect Earth-mass planet? 22nd December 2008, 3:27 pm | |
| Haha, I suppose I should have been more accurate. 1 M_earth as in "We're pretty dang confident it's ~1 +/- 0.1 M_earth". I don't quite understand standard deviation enough to phrase it in that context haha. An interesting note that CoRoT currently has no votes. - NuclearVacuum wrote:
- THE RUSSIANS!!!!!!!!!!
Do I smell a space race about to start? _________________ Caps Lock: Cruise control for 'Cool'!
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Edasich dK star
Number of posts : 2291 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: Who will be first to detect Earth-mass planet? 22nd December 2008, 5:16 pm | |
| - NuclearVacuum wrote:
- THE RUSSIANS!!!!!!!!!!
And why not ITALIANS???? | |
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ciceron Planetary Embryo
Number of posts : 84 Age : 54 Location : Spain Registration date : 2008-04-08
| Subject: Re: Who will be first to detect Earth-mass planet? 31st March 2009, 5:21 pm | |
| I voted for Kepler , but ... Spaniards got a chance from ground observations too | |
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gremlin66 Micrometeorite
Number of posts : 6 Age : 43 Location : Canada, Earth Registration date : 2009-04-20
| Subject: Re: Who will be first to detect Earth-mass planet? 20th April 2009, 3:19 am | |
| so that planet orbiting MOA-2007-BLG-192Lb; any hints on whether or not it's a terrestrial or gas planet? i like the potential in a 3-5 earth mass planet | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Who will be first to detect Earth-mass planet? 20th April 2009, 8:51 am | |
| The planet is most likely a terrestrial planet. _________________ Caps Lock: Cruise control for 'Cool'!
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Edasich dK star
Number of posts : 2291 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: Who will be first to detect Earth-mass planet? 20th April 2009, 9:51 am | |
| But do not expect to find there the little green men. With a brown dwarf host the habitable zone is certainly tight (<<0.1 AUs) so it should be as cold as Uranus or Saturn. | |
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AVBursch Meteor
Number of posts : 18 Registration date : 2009-05-01
| Subject: Re: Who will be first to detect Earth-mass planet? 1st May 2009, 8:58 am | |
| Who would be the first to detect an Earth-mass extrasolar planet? As far as methods go, I would say Doppler method.
Earth-mass extrasolar planets are already detectable with today's technology. Maybe not around stars like the Sun, but definitely doable around red dwarfs.
Consider Gliese 581e. The mass (or more precisely, the value of m sin i) is 1.9 Mearth. The star, Gliese 581, has a mass of 324 Mjup. Extrapolating from that point, an Earth-mass exoplanet would be detectable, with today's technology and using the doppler method, around a 170 Mjup star in a 0.03 AU orbit. Finding an Earth-mass exoplanet orbiting a star with a mass of 80 Mjup with the doppler method would be trivial with today's technology. | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Who will be first to detect Earth-mass planet? 1st May 2009, 11:59 am | |
| Once you get in the mass ranges you're talking about, the stellar host is a brown dwarf and is very dim. There is a problem getting radial velocity data from the star with a sufficiently high signal to noise ratio. _________________ Caps Lock: Cruise control for 'Cool'!
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Dnoces Micrometeorite
Number of posts : 13 Registration date : 2009-04-26
| Subject: Re: Who will be first to detect Earth-mass planet? 1st May 2009, 5:36 pm | |
| I voted CoRoT, I guess because it's had the most luck as far as stuff not around red dwarfs. | |
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Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: Who will be first to detect Earth-mass planet? 17th October 2012, 3:27 pm | |
| Resurrecting this for you-know-why. Wait until true mass is determined or does m sin i suffice? _________________ Caps Lock: Cruise control for 'Cool'!
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| Subject: Re: Who will be first to detect Earth-mass planet? | |
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| Who will be first to detect Earth-mass planet? | |
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