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: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
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
