Discovery of molecular hydrogen in a high-velocity cloud of the Galactic halo

Abstract

We report the discovery of molecular hydrogen absorption in a Galactic high-velocity cloud (HVC) in the direction of the Large Magellanic Cloud. For the same HVC we derive an iron abundance which is half of the solar value. Thus, all evidence points to a Galactic origin for high-velocity cloud complex in front of the LMC.

Published in Nature, this week; 14 pages, 3 figures

References in corpus (2)

• A confirmed location in the Galactic halo for the high-velocity cloud 'chain A'
• The ORFEUS II Echelle Spectrometer: Instrument description, performance and data reduction

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