Bibcode
Fouqué, P.; Chevallier, L.; Cohen, M.; Galliano, E.; Loup, C.; Alard, C.; de Batz, B.; Bertin, E.; Borsenberger, J.; Cioni, M. R.; Copet, E.; Dennefeld, M.; Derriere, S.; Deul, E.; Duc, P.-A.; Egret, D.; Epchtein, N.; Forveille, T.; Garzón, F.; Habing, H. J.; Hron, J.; Kimeswenger, S.; Lacombe, F.; Le Bertre, T.; Mamon, G. A.; Omont, A.; Paturel, G.; Pau, S.; Persi, P.; Robin, A. C.; Rouan, D.; Schultheis, M.; Simon, G.; Tiphène, D.; Vauglin, I.; Wagner, S. J.
Bibliographical reference
Astronomy and Astrophysics Supplement, v.141, p.313-317
Advertised on:
1
2000
Citations
74
Refereed citations
70
Description
An absolute calibration of the DENIS photometric system is presented. It
includes the determination of the overall transmission profiles in the 3
bands, namely i, J and K_s, combining contributions from atmosphere,
telescope mirrors, instrument lenses and dichroics, filters, and
detectors. From these normalized profiles, isophotal and effective
wavelengths are computed, using the same synthetic Vega spectrum as that
used to support the absolute calibration of many other ground-based and
spaceborne photometric systems. Flux densities at zero magnitude are
derived and integrated to give in-band fluxes, which are used to compute
theoretical zero-points and compare them to observed ones, yielding
estimates of the overall throughput of the whole system.