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Table 3

VISIR filter characteristics.

Filter Central Detector Total exposure Estimated* / Extinction Typical Aperture
wavelenth integration time of nod advertised correction FWHM of correction
(μm) time (DIT) pairs (s) sensitivity uncertainty standard star uncertainty
(s) (mJy/10σ/1 h) (mag) PSF (pixels) (%)

J8.9 8.70 0.0250 179.40 7.8/5 0.002 2.1 1.0
B10.7 10.65 0.0125 180.55 8.2/8 0.002 2.3 0.4
B11.7 11.52 0.0200 180.32 6.8/6 0.002 2.5 0.3
B12.4 12.47 0.0125 180.55 13.5/12 0.002 2.7 1.5

Notes. Each filter is listed with its central wavelength, the detector integration time used, the total exposure time and the estimated sensitivity of the observations. The measured extinction coefficient uncertainty, width of the seeing profile of the standard stars and the uncertainty in the aperture correction are also listed.


From standard observations.

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