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Circumferential graben and the structural evolution of Alba Mons, Mars
McGovern, Patrick J.; Öhman, Teemu
Alba Mons is a unique, very extensive but shallow volcanotectonic construct in northern Tharsis, Mars. Numerous models have been presented to explain the formation of Alba Mons and its most characteristic feature, a wristwatch-like pattern of radial and circumferential graben. We used a wide selection of topographic datasets to characterize the fa…
Sub-millimeter observation of water vapor at 557 GHz in Comet C/2002 T7 (LINEAR)
Choukroun, Mathieu; Janssen, Michael; Keihm, Stephen +9 more
We present sub-millimeter observations of the ground-state rotational transition (110-101) of water vapor from Comet C/2002 T7 (LINEAR) obtained with the MIRO instrument on the ESA Rosetta spacecraft (s/c) orbiter on April 30, 2004. At the time of the observations, the comet was at a distance of 0.63 AU from the Sun, 0.68 AU …