Abstract
We present the results of two 2.3 μm near-infrared (NIR) radial velocity (RV) surveys to detect exoplanets around 36 nearby and young M dwarfs. We use the CSHELL spectrograph (R ∼ 46,000) at the NASA InfraRed Telescope Facility (IRTF), combined with an isotopic methane absorption gas cell for common optical path relative wavelength calibration. We have developed a sophisticated RV forward modeling code that accounts for fringing and other instrumental artifacts present in the spectra. With a spectral grasp of only 5 nm, we are able to reach long-term radial velocity dispersions of ∼20-30 m s-1 on our survey targets.
| Original language | English |
|---|---|
| Pages (from-to) | 286-287 |
| Number of pages | 2 |
| Journal | Proceedings of the International Astronomical Union |
| Volume | 10 |
| DOIs | |
| State | Published - 2015 |
| Externally published | Yes |
Keywords
- instrumentation: spectrographs
- techniques: radial velocities