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| Paper: |
CAESAR: Companion Assessment of Equatorial Stars with Astrometry and Radial Velocity |
| Volume: |
448, 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun |
| Page: |
825 |
| Authors: |
Davison, C.; White, R.; Henry, T.; Bailey, J.; Jao, W.-C.; Riedel, A.; Cantrell, J. |
| Abstract: |
We would like to introduce our new program, CAESAR, a Companion Assessment of Equatorial Stars with both Astrometry and Radial velocity. With our dual method program, we are narrowing the prospective hiding places for companions around mid M dwarfs (0.35-0.15 solar masses) within 10 parsecs. To study these inherently faint stars, we are using CSHELL at NASA's IRTF to obtain high precision infrared radial velocity measurements to search for planets with short periods, close-in to their parent star. As a complement to our radial velocity (RV) program, we will are working in conjunction with the SMARTS CTIO Parallax Investigation program to search for more massive planets and brown dwarfs at distances out to 2 AU from the majority of our stars, which is past the snowline (where the massive planets formed in our Solar System). The combination of using both methods on the first-ever mid M-dwarf volume-limited survey, will allow us to place the strictest constraints on the companion frequency around these very low mass stars and will help differentiate between the most probable formation scenarios for planets to form. |
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