Large scale dissociation of molecular gas in the sprial arms of M51

Details Large scale dissociation of molecular gas in the sprial arms of M51 Large scale dissociation of molecular gas in the sprial arms of M51

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987nascp2466..309t&link_type=abstract

Star formation in galaxies, Proceedings of a conference at the California Institute of Technology, Pasadena, California, June 16

Computer Science

6

Density Wave Model, Dust, Galactic Structure, Molecular Clouds, Molecular Gases, Morphology, Star Formation, Gravitational Fields, H Alpha Line, Hot Stars, Interstellar Matter, Ionization, Space Observations (From Earth)

Scientific paper

The distribution of the atomic and ionized hydrogen along the inner spiral arms of M51 are compared. As is the case in M83, the location of both these phases of the interstellar medium with respect to the major dust lanes suggests that molecular hydrogen is dissociated on kpc scales in active star-forming regions, and that this dissociation process may strongly affect the observed morphology of atomic hydrogen in spiral arms.

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