Near-UV to near-IR disk-averaged Earth's spectra from Moon's Earthshine observations

Details Near-UV to near-IR disk-averaged Earth's spectra from Moon's Earthshine observations Near-UV to near-IR disk-averaged Earth's spectra from Moon's Earthshine observations

2005-10-13

arxiv.org/abs/astro-ph/0510384v1

Astronomy and Astrophysics

Astrophysics

2 pages, 1 figure, proceedings from a poster at 'Semaine de l'Astrophysique Francaise', 27th june-1st july 2005, Strasbourg

Scientific paper

We discuss a series of Earthshine spectra obtained with the NTT/EMMI instrument between 320nm and 1020nm with a resolution of R~450 in the blue and R~250 in the red. These ascending and descending Moon's Earthshine spectra taken from Chile give disk-averaged spectra for two different Earth's phases. The spectra show the ozone (Huggins and Chappuis bands), oxygen and water vapour absorption bands, and also the stronger Rayleigh scattering in the blue. Removing the known telluric absorptions reveals a spectral feature around 700nm which is attributed to the vegetation stronger reflectivity in the near-IR, so-called vegetation red-edge.

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