| Autor: |
Lobanov, Andrei P., Zensus, J. Anton, Cesarsky, Catherine, Diamond, Phillip J., Perryman, M.A.C. |
| Zdroj: |
Exploring the Cosmic Frontier; 2006, p237-252, 16p |
| Abstrakt: |
Various techniques are being used to search for extra-solar planetary signatures, including accurate measurement of positional (astrometric) displacements, gravitational microlensing, and photometric transits. Planned space experiments promise a huge increase in the detections and statistical knowledge arising from transit and astrometric measurements. Direct detection of even nearby Earth-mass planets in the habitable zone and the measurement of their spectral characteristics, typified by the TPF and Darwin missions, represents a considerable challenge. Beyond TPF/Darwin, Life Finder would aim to produce confirmatory evidence of the presence of life, while an Earth ‘imager’, some massive interferometric array providing resolved images of a distant Earth, appears only as a distant vision. A 10 nano-arcsec astrometric mission would detect ‘Earths’ systematically out to 100 pc. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
