Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26as..128..207h&link_type=abstract
Astronomy and Astrophysics Supplement, v.128, p.207-219
Astronomy and Astrophysics
Astrophysics
24
Techniques: Photometric, Stars: Fundamental Parameters, Infrared: Stars
Scientific paper
We present N, 8.7 mu m, 9.8 mu m 12.5 mu m and Q bolometry of 26 stars which were observed on the IRTF. These are primarily K giants which have been well measured at other wavelengths and are chosen to be single and non-variable. Hence the data presented provides a new homogeneous set of mid IR standards. As a test of part of the calibration strategy of ISO over this wavelength range, the zero points have been set using the Kurucz model grids (1993) to predict the mid IR magnitudes from near IR data. An analysis of the errors involved is presented and a comparison with more direct methods for the determination of the zero points suggest an possible error of 0.015 mags, although the source of this error is unclear as it is at the level of the uncertainty in the more direct methods. The effect of the SiO fundamental on the spectral energy distributions of K giants is discussed.
Bouchet Patrice
Habing Harm J.
Hammersley Peter L.
Joseph Robert D.
Jourdain de Muizon Marie
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