https://doi.org/10.1051/epjconf/20111602007
Improving the radial velocity precision of NIRSPEC data
1 Instituto de Astrofísica de Canarias, C/Via Láctea s/n, 38205 La Laguna, Spain
2 Centro de Astrobiología (CAB-CSIC), Ctra. Ajalvir km. 4, 28850 Torrejón de Ardoz, Madrid, Spain
3 University of Central Florida, Physics Department, PO Box 162385, Orlando, FL 32816, USA
4 School of Cosmic Physics, Dublin Institute of Advance Studies, Ireland
5 UNINOVA-CA3, Campus da Caparica, Quinta da Torre, Monte de Caparica, 2825-149 Caparica, Portugal
a e-mail: frodler@iac.es
We present an approach to improve the radial velocity precision of NIRSPEC data (spectral resolution R = λ/Δλ ≈ 22,000) by using a self-calibration approach. We demonstrate that the accuracy can be significantly improved by deconvolving the spectra and using the telluric lines as a long-term stable wavelength reference.
HITRAN data base: http://www.cfa.harvard.edu/hitran/
© Owned by the authors, published by EDP Sciences, 2011
