Gaia making a 3D-map of a Billion stars, new space observatory |
Gaia making a 3D-map of a Billion stars, new space observatory |
Apr 1 2006, 07:38 PM
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Member Group: Members Posts: 124 Joined: 23-March 06 Member No.: 723 |
Have you guys heard about this one ?
Gaia observatory link link QUOTE "The satellite will determine the position, colour and true motion of one thousand million stars and over 100,000 objects in our Solar System. Gaia will also identify as many as 10,000 planets around other stars. " QUOTE "Gaia will measure distance (from parallax) out to ~100,000 parsecs; for stars ~10,000 pc away, with a Vmag of ~<15, Gaia will measure their distances accurate to ~10-20%." You can also read about it here http://www.spaceflightnow.com/news/n0407/06mapping/ http://en.wikipedia.org/wiki/Gaia_probe or check the European space site |
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Feb 2 2009, 06:26 PM
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Member Group: Members Posts: 124 Joined: 23-March 06 Member No.: 723 |
Cornell Uni Library
http://eprintweb.org/S/article/astro-ph/0812.2354 arXiv The promise of Gaia and how it will influence stellar ages Carla Cacciari Abstract. The Gaia space project, planned for launch in 2011, is one of the ESA cornerstone missions, and will provide astrometric, photometric and spectroscopic data of very high quality for about one billion stars brighter than V=20. This will allow to reach an unprecedented level of information and knowledge on several of the most fundamental astrophysical issues, such as mapping of the Milky Way, stellar physics (classification and parameterization), Galactic kinematics and dynamics, study of the resolved stellar populations in the Local Group, distance scale and age of the Universe, dark matter distribution (potential tracers), reference frame (quasars, astrometry), planet detection, fundamental physics, Solar physics, Solar system science. I will present a description of the instrument and its main characteristics, and discuss a few specific science cases where Gaia data promise to contribute fundamental improvement within the scope of this Symposium. |
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