Corot, Stars vibrations and extrasolar planets |
Corot, Stars vibrations and extrasolar planets |
Feb 10 2006, 10:40 AM
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#1
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Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
Beginning of the COROT satellite validation/integration phase, on 6 January 2006
http://smsc.cnes.fr/COROT/GP_actualite.htm Corot home pages http://smsc.cnes.fr/COROT/index.htm http://sci.esa.int/science-e/www/area/index.cfm?fareaid=39 |
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Feb 10 2006, 12:49 PM
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#2
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Send a message to 47 Ursae Majoris:
http://www.cosmicconnexion.com/static/index.html Apparently this exercise in Active SETI (ASETI) is the "celebration" part of the COROT astronomy satellite mission to find extrasolar planets, including Earth-size (Telluric) ones. COROT is set for launch in June of 2006. http://smsc.cnes.fr/COROT/ http://www.esa.int/science/corot http://cfa-www.harvard.edu/planets/corot.html Not that we should refine our ETI searches just to planets (some would argue we will have better chances aiming our telescopes at regions which show up in the infrared but not the optical), but 47 UM does have at least two Jupiter-class worlds orbiting at fairly large distances from their star (unlike all those other exogiants that practically skim the photospheres), allowing at least the possibility of an Earth-size world in the habitable zones. See here: http://www.solstation.com/stars2/47uma.htm Will the messages being sent out by CNES "survive" the 46 light year journey to 47 UM? Will they even be comprehensible to anyone there? Will it at least let any ETI present know they are not alone and motivate them to respond? Is it wiser to keep our mouths shut and let someone else contact us first? Or do we gain nothing by hiding under our beds - except dust? -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Mar 10 2006, 03:42 PM
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#3
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Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
Searching for rocky world
Due for launch in 2006, Corot will be the first mission capable of detecting rocky planets outside our Solar System. This week EuroNews takes a closer look at this 30-centimetre diameter space telescope which will be able to detect tiny changes in brightness from nearby stars. http://www.esa.int/esaCP/SEMISENVGJE_index_0.html |
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Mar 14 2006, 12:54 PM
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#4
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Junior Member Group: Members Posts: 38 Joined: 14-March 06 Member No.: 704 |
The Euronews space magazine programme on Corot mentioned in the link above is available to view online here: http://www.euronews.net/create_html.php?page=space&lng=1 along with previous episodes of the show.
Corot is currently scheduled to launch in October, the June launch was put back quite a while ago. |
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Mar 16 2006, 07:29 PM
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#5
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Junior Member Group: Members Posts: 23 Joined: 20-February 06 From: Poland, Wroclaw Member No.: 685 |
But it is going to launch ? Meaning the mission wasn't cancelled ?
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Mar 17 2006, 05:18 AM
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#6
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Junior Member Group: Members Posts: 38 Joined: 14-March 06 Member No.: 704 |
" Meaning the mission wasn't cancelled ?"
Absolutely not. The craft has already been built. It's currently undergoing testing which is due to continue until August, with the launch due in October. CNES puts the date of scientific data use as 2009, after the end of the primary mission. As I understand it there will be a total of ten phases of observation during the primary mission consisting of five 150 day observations with another five 30 day observations. Surely scientific data use could start after the first phase, somewhere around mid 2007. Correct or not? Obviously it will take some time to analyze the data, does anyone have an idea of how long this should take? |
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Mar 23 2006, 08:15 AM
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#7
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Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
COROT set to join planet search
http://www.astronomy.com/asy/default.aspx?c=a&id=4054 A slight mistake in this article. They are still reporting a launch of COROT in June 2006. -- Rakhir |
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Mar 29 2006, 08:03 PM
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#8
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Member Group: Members Posts: 124 Joined: 23-March 06 Member No.: 723 |
cancelled ? Euros suddenly axe a mission that may upstage the US, that's a good one I think you're confusing ESA with NASA : who almost cancelled everthing except that CEV ! ( although we did get Dawn back, so I suppose we should be thanking them ) The Euros seem to have only cancelled about 1 mission in the last decade some more on Corot http://www.bautforum.com/showthread.php?t=38876 http://www.qi.com/talk/viewtopic.php?t=308...5ae2d4df484ab42 http://forum.nasaspaceflight.com/forums/th...id=1172&posts=2 http://www.webastro.net/forum/index.php?showtopic=10936 |
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Mar 29 2006, 09:30 PM
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#9
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Member Group: Members Posts: 124 Joined: 23-March 06 Member No.: 723 |
Send a message to 47 Ursae Majoris: http://www.cosmicconnexion.com/static/index.html Apparently this exercise in Active SETI (ASETI) is the "celebration" part of the COROT astronomy satellite mission to find extrasolar planets, including Earth-size (Telluric) ones. COROT is set for launch in June of 2006. I'm all for listening for space signals but I'm not sure we should be pro-active giving away our position PS what kind of a childish dork wrote this message ' Killallhumans ' http://www.cosmicconnexion.com/visu.php?la...age=564&debut=0 'Le human-race is a parasite' Thank you Mr.French Person for sending such a warm message to the stars |
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Mar 29 2006, 10:16 PM
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#10
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
I'm all for listening for space signals but I'm not sure we should be pro-active giving away our position PS what kind of a childish dork wrote this message ' Killallhumans ' http://www.cosmicconnexion.com/visu.php?la...age=564&debut=0 'Le human-race is a parasite' Thank you Mr.French Person for sending such a warm message to the stars This is more of a publicity stunt than a serious attempt at Active SETI. While the particular "message" you cite is certainly juvenile and crude, I really would not concern myself with it causing an interstellar invasion, and not just because ETI probably would not understand French, English, or any other human language outside of mathematics. At best, this stunt might make an ETI aware of us as an artificial signal, but its jumble of messages will likely be unintelligible to them. And recall that we have been braodcasting our presence into the galaxy since the advent of radio, television, and radar. Most of those signals already have many light years on the Corot stunt. -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Mar 30 2006, 10:42 AM
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#11
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Junior Member Group: Members Posts: 23 Joined: 20-February 06 From: Poland, Wroclaw Member No.: 685 |
QUOTE The Euros seem to have only cancelled about 1 mission in the last decade They cancelled Eddington QUOTE I'm all for listening for space signals but I'm not sure we should be pro-active giving away our position You don't need to worry. Any advanced civilisation nearby would know our potential presence. We are close to detecting extra-solar planets capable of life, others will too. And you can detect planets much easier then radio signals which in reality are received in a very short range. |
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Mar 30 2006, 02:30 PM
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#12
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Astrophysics, abstract
astro-ph/0603671 From: J\'er\^ome Ballot [view email] Date: Fri, 24 Mar 2006 14:52:51 GMT (50kb) Rotation speed and stellar axis inclination from p modes: How CoRoT would see other suns Authors: J. Ballot, R. A. Garcia, P. Lambert Comments: 6 pages, 4 figures, accepted for publication in MNRAS In the context of future space-based asteroseismic missions, we have studied the problem of extracting the rotation speed and the rotation-axis inclination of solar-like stars from the expected data. We have focused on slow rotators (at most twice solar rotation speed), firstly because they constitute the most difficult case and secondly because some of the CoRoT main targets are expected to have slow rotation rates. Our study of the likelihood function has shown a correlation between the estimates of inclination of the rotation axis i and the rotational splitting deltanu of the star. By using the parameters, i and deltanu*=deltanu sin(i), we propose and discuss new fitting strategies. Monte Carlo simulations have shown that we can extract a mean splitting and the rotation-axis inclination down to solar rotation rates. However, at the solar rotation rate we are not able to correctly recover the angle i although we are still able to measure a correct deltanu* with a dispersion less than 40 nHz. http://arxiv.org/abs/astro-ph/0603671 -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Apr 3 2006, 09:11 PM
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#13
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Member Group: Members Posts: 124 Joined: 23-March 06 Member No.: 723 |
ok the last few articles I saw said Corot would be launched in October 2006, is that date correct ?
Konangrit thinks so anyway |
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Apr 12 2006, 08:07 PM
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#14
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Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
ok the last few articles I saw said Corot would be launched in October 2006, is that date correct ? Konangrit thinks so anyway The Corot web site is showing an october 2006 launch date. And I received the confirmation from the launch campaign manager that this is indeed the planned date. -- Rakhir |
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Apr 17 2006, 06:14 PM
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#15
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Corot Space Telescope On Target For October Launch
http://www.spacedaily.com/reports/Corot_Sp...ber_Launch.html -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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