Abstract
The Adaptive Optics System NACO at the VLT has been equipped with a Simultaneous Differential Imager (SDI) designed to provide direct imaging of giant extra-solar planets. Exploiting the fact that all cool (Teff < 1200K) extrasolar giant planets have strong CH4 (methane) absorption beyond 1.62 μm in the H band NIR atmospheric window, diffraction limited narrow-band images centred on this absorption edge are obtained with NACO simultaneously to reduce the speckle-noise floor and increase the sensitivity for Jupiter-like planets around nearby young stars. We present the technical realization of this device and first results obtained during the commissioning run.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 970-977 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5492 |
| Issue number | PART 2 |
| DOIs | |
| State | Published - 2004 |
| Event | Ground-based Instrumentation for Astronomy - Glasgow, United Kingdom Duration: Jun 21 2004 → Jun 25 2004 |
Keywords
- Adaptive-Optics
- Extra-solar planets
- NACO
- VLT
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering