Ref: ASTROimport-94

ISO-SWS calibration and the accurate modelling of cool-star atmospheres. II. General results

Decin, L. ; Vandenbussche, B. ; Waelkens, C. ; Eriksson, K. ; Gustafsson, B. ; Plez, B. ; Sauval, A. J. ; Hinkle, K.

published in Astronomy and Astrophysics, 400, pp. 679-694 (2003)

Abstract: The fine calibration of the ISO-SWS detectors (Infrared Space Observatory - Short Wavelength Spectrometer) has proven to be a delicate problem. We therefore present a detailed spectroscopic study in the 2.38-12 mu m wavelength range of a sample of 16 A0-M2 stars used for the calibration of ISO-SWS. By investigating the discrepancies between the ISO-SWS data of these sources, the theoretical predictions of their spectra, the high-resolution FTS-KP (Kitt Peak) spectrum of alpha Boo and the solar FTS-ATMOS (Atmospheric Trace Molecule Spectroscopy) spectrum, both calibration problems and problems in computing the theoretical models and the synthetic spectra are revealed. The underlying reasons for these problems are sought for and the impact on the further calibration of ISO-SWS and on the theoretical modelling is discussed extensively. Based on observations with ISO, an ESA project with instruments funded by ESA Member States (especially the PI countries France, Germany, The Netherlands and the UK) and with the participation of ISAS and NASA. Appendix is only available in electronic form at http://www.edpsciences.org

DOI: 10.1051/0004-6361:20021793
Links: link

The record appears in these collections:
Royal Observatory of Belgium > Astronomy & Astrophysics
Science Articles > Peer Reviewed Articles

 Record created 2016-07-01, last modified 2016-07-01