COROT planets |
COROT planets |
May 3 2007, 02:20 PM
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Junior Member Group: Members Posts: 22 Joined: 3-January 07 Member No.: 1551 |
http://news.bbc.co.uk/1/hi/sci/tech/6611557.stm
is reporting that Corot has found its first planet. I can't find an arxiv paper about this, or even a press release, but there are many here better at squirreling out data releases than me. 1.3Mj, 1.8Rj so it's a very inflated planet, 1.5-day orbit around a 'star quite similar to the Sun' might account for that. In the Monoceros field (Corot is now pointing at the Scutum/Aquila field). |
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Guest_PhilCo126_* |
Aug 31 2007, 06:51 PM
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Guests |
In which parts of the Electromagnetic spectrum are COROT's detectors active ( Visible and radio for the astroseismology ? )
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Sep 1 2007, 12:17 PM
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Member Group: Members Posts: 124 Joined: 23-March 06 Member No.: 723 |
In which parts of the Electromagnetic spectrum are COROT's detectors active ( Visible and radio for the astroseismology ? ) I'd guess its 350nm-750nm range and it doesn't cover radio, basically the Europeans want to do highly sensitive measurements of a star from space that can't be done on the ground, hopefully NASA will be doing it soon with Kepler. Space is more stable, there is no heat/noise and the viewing time is uninterrupted. This is why a small telescope in the visible spectrum can outperform giant ground-based scopes. Corot will look at stars with an accuracy, stability, precision, and a duration off uninterrupted periods that are impossible to reach from our ground based telescopes. I quote from the esa site http://sci.esa.int/science-e/www/object/in...fobjectid=31706 "The detectors are 4 CCD's 2048 x 2048 wide, (EEV, 13.5-μm thinned, back illuminated), working in the visible in the MPP mode. They are installed in the focal box, which is at a temperature of -40 °C with a variation that is less than 0.05 °C per hour. For the seismology mission, the image spot for a star is spread out on about 400 pixels, with an exposure time of 1 second." |
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