Structure of the Local ISM

Details Structure of the Local ISM Structure of the Local ISM

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..365..219l&link_type=abstract

SINS - Small Ionized and Neutral Structures in the Diffuse Interstellar Medium ASP Conference Series, Vol. 365, Proceedings of t

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We report preliminary results of our program to determine the structure and physical properties of warm partially-ionized clouds in the local interstellar medium. Analysis of ultraviolet absorption lines toward stars inside the Local Bubble provides 183 interstellar velocity components and ground-based Ca II spectra provide an additional 87 components. We fit these data with 15 velocity vectors and determine the shapes of 15 clouds located within 15 pc of the Sun. We find that four nearby radio scintillation scattering screens are coincident with the intersections of the LIC, G and other nearby clouds. The cold cloud mapped by Heiles and Troland may be near the edges of the Leo and Gem clouds.

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