Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-05-08
Astronomy and Astrophysics
Astrophysics
60 pages, 37 figures, accepted in PASP, 4 Tables added
Scientific paper
10.1086/506155
Observations of extrasolar planets using Integral Field Spectroscopy (IFS), if coupled with an extreme Adaptive Optics system and analyzed with a Simultaneous Differential Imaging technique (SDI), are a powerful tool to detect and characterize extrasolar planets directly; they enhance the signal of the planet and, at the same time, reduces the impact of stellar light and consequently important noise sources like speckles. In order to verify the efficiency of such a technique, we developed a simulation code able to test the capabilities of this IFS-SDI technique for different kinds of planets and telescopes, modelling the atmospheric and instrumental noise sources. The first results obtained by the simulations show that many significant extrasolar planet detections are indeed possible using the present 8m-class telescopes within a few hours of exposure time. The procedure adopted to simulate IFS observations is presented here in detail, explaining in particular how we obtain estimates of the speckle noise, Adaptive Optics corrections, specific instrumental features, and how we test the efficiency of the SDI technique to increase the signal-to-noise ratio of the planet detection. The most important results achieved by simulations of various objects, from 1 M_J to brown dwarfs of 30 M_J, for observations with an 8 meter telescope, are then presented and discussed.
Berton Alessandro
Desidera Silvano
Feldt Markus
Gratton Raffaele G.
Henning Th
No associations
LandOfFree
Detecting Extrasolar Planets with Integral Field Spectroscopy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Detecting Extrasolar Planets with Integral Field Spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detecting Extrasolar Planets with Integral Field Spectroscopy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-676005