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| Paper: |
Future Astrometry with ALMA to Characterize Extrasolar Planet Orbits |
| Volume: |
294, Scientific Frontiers in Research on Extrasolar Planets |
| Page: |
587 |
| Authors: |
Lestrade, J.-F. |
| Abstract: |
The most complete catalogue of nearby stars by Gliese and Jarheiss (1991) is used to find that the thermal emission of the photospheres of 446 nearby stars can be detected by the future millimeter array ALMA. This array has a theoretical astrometric precision of 0.1 milliarcsond. A long-term astrometric observation program (more than 10 years) of these stars would be sensitive to wobbles caused by the gravitational pull of possible unseen planets. Such a program would probe minimum planetary masses as low as 0.1 Jupiter for an orbital period of 10 years. We provide the histogram of these minimum masses for the 446 ALMA stars. |
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