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Ultraviolet radiation constraints around the circumstellar habitable zones

Buccino, Andrea P.; Lemarchand, Guillermo A.; Mauas, Pablo J. D.

Ultraviolet radiation is known to inhibit photosynthesis, induce DNA destruction and cause damage to a wide variety of proteins and lipids. In particular, UV radiation between 200 and 300 nm becomes energetically very damaging to most of the terrestrial biological systems. On the other hand, UV radiation is usually considered one of the most impor…

Rotationally-resolved spectroscopy of Vesta I: 2 4 µm region

McFadden, L. A.; Rivkin, A. S.; Binzel, R. P. +1 more

We present new infrared (2-4 µm) spectroscopic observations of Vesta obtained in 2001, 2003, and 2004. Together with previously published work, these present a picture of how Vesta's spectrum changes with sub-Earth latitude and longitude. Vesta's albedo and 2-µm band vary regularly with its rotational phase. While establishing the cont…