Thermal InfraRed Observations at Dôme C: A Valuable Extension for HYPERLEDA

The outstanding atmospheric conditions of the Dome C give a unique opportunity to survey the sky in the thermal infrared reaching interesting sensitivity limits for extragalactic astronomy. It will allow to survey the very obscured region of the Galactic Plane, to detect numerous Ultra-Luminous InfraRed Galaxies, a class of extremely powerful galaxies in the infrared wavelengths. The detection of individual Cepheids in nearby galaxies will be possible and will lead to eliminate a biais in the determination of the extragalactic distances scale. Our extragalactic database HyperLeda will benefit from new infrared data.