Detecting Terrestrial Mass Planets Around M-dwarfs: Is SIM Competitive?

Details Detecting Terrestrial Mass Planets Around M-dwarfs: Is SIM Competitive? Detecting Terrestrial Mass Planets Around M-dwarfs: Is SIM Competitive?

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21345505t&link_type=abstract

American Astronomical Society, AAS Meeting #213, #455.05; Bulletin of the American Astronomical Society, Vol. 41, p.354

Astronomy and Astrophysics

Astrophysics

Scientific paper

In the past few years, there have been public claims that SIM is unnecessary as a terrestrial planet search tool since radial velocity studies will be able to reach sensitivities of 10 cm/s. This is adequate to detect terrestrial planets in the habitable zones of M and K dwarfs. However, it has not been demonstrated that the RV technique will be sensitive to terrestrial planets at these separations under the different sources of stellar jitter inherent to M dwarfs - granulation, star spots, flares and p-mode oscillations. Therefore, we have designed a study to investigate the astrophysical jitter inherent to potential SIM M dwarf targets using space (i.e. CoRot, HST, Spitzer, MOST, etc) and ground-based, ultra-precise photometric data. The goal of the study will be to present a thorough comparison of the sensitivity to terrestrial planets using either SIM or 10 cm/s radial velocity measurements with realistic noise sources. Since the exoplanet taskforce has recently placed M dwarfs as high priority targets, the results of this study can be used to guide near-term planet search programs as well as promote SIM. Here, we present our strategy for completing this study and their benefits to the exoplanet community as a whole.

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