Radial systems of dark globules

Details Radial systems of dark globules Radial systems of dark globules

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985afz....23..295g&link_type=abstract

(Astrofizika, vol. 23, Sept.-Oct. 1985, p. 295-306) Astrophysics (ISSN 0571-7132), vol. 23, no. 2, March 1986, p. 538-544. Trans

Astronomy and Astrophysics

Astrophysics

16

Globules, Hydrogen Clouds, Molecular Clouds, Nebulae, Hot Stars, Radial Distribution, Star Clusters

Scientific paper

The examples of radial systems consisting of dark globules and elephant trunks are given. Except for already known systems, in the centre of which the hot stars are situated, data on three new type radial systems are given. In their centre the stars of spectral types later than B are situated. Data on 32 globules of radial systems of the Cep OB2 association are given. Due to the observational data a hypothesis is suggested about the origin of at least a part of isolated Bok globules: from elephant trunks and dark globules, composing radial systems around bright stars. The possibility of ejection in two opposite directions of two molecular clouds situated near the Rosette nebula is also discussed. The velocities of these clouds differ from the mean velocity of the Rosette nebula by ≡20 km/s. One of these clouds consists of dark globules from which the radial system of the Rosette nebula is composed.

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