Virial theorem and stability considerations of the high latitude cloud L1642.

Details Virial theorem and stability considerations of the high latitude cloud L1642. Virial theorem and stability considerations of the high latitude cloud L1642.

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992amfa.meet...44l&link_type=abstract

Annual meeting of the Finnish Astronomical Society, p. 44 - 46

Astronomy and Astrophysics

Astronomy

Scientific paper

CO, HCO+ and NH3 observations have been carried out towards the dark cloud L1642. The velocity field of the gas indicates a core-halo structure. The mass of the cloud is some 84 Msun. The number density of H2 is ≅9×103cm-3 in the densest part of the core. This study supports the view that L1642 is in virial equilibrium and significantly older than 106yr. The virial equilibrium of L1642 enables a distance determination of ≅200 pc to the cloud core.

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