The Detection of Terrestrial Planets via Gravitational Microlensing: Space vs. Ground-based Surveys
| dc.creator | Bennett, David P. | |
| dc.date | 2004-04-05 | |
| dc.date.accessioned | 2026-07-07T02:12:50Z | |
| dc.date.available | 2026-07-07T02:12:50Z | |
| dc.description | I compare an aggressive ground-based gravitational microlensing survey for terrestrial planets to a space-based survey. The Ground-based survey assumes a global network of very wide field-of-view ~2m telescopes that monitor fields in the central Galactic bulge. I find that such a space-based survey is ~100 times more effective at detecting terrestrial planets in Earth-like orbits. The poor sensitivity of the ground-based surveys to low-mass planets is primarily due to the fact that the main sequence source stars are unresolved in ground-based images of the Galactic bulge. This gives rise to systematic photometry errors that preclude the detection of most of the planetary light curve deviations for low mass planets. | |
| dc.description | 8 pages with 13 included postscript figures. To Appear in the Proceedings of the XIXth IAP Colloquium, "Extrasolar Planets Today and Tomorrow", held a the Institut d'Astrophysique de Paris on June 30-July 4, 2003 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0404075 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0404075 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/7592 | |
| dc.subject | Astrophysics | |
| dc.title | The Detection of Terrestrial Planets via Gravitational Microlensing: Space vs. Ground-based Surveys | |
| dc.type | text |