The star-forming region in Cepheus A

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Condensing, Main Sequence Stars, Molecular Clouds, Stellar Evolution, Stellar Spectrophotometry, H Ii Regions, Interstellar Magnetic Fields, Interstellar Matter, Magnetic Effects, Radiant Flux Density, Radio Emission, Spectral Resolution, Very Large Array (Vla)

Scientific paper

Observations have been made of the molecular cloud condensation Cep A, with resolutions down to 1 arcsec at 21 cm and 6 cm, using both the Westerbork Synthesis Radio Telescope, and the NRAO Very Large Array. The condensation is seen to contain two strings of H II regions, which are interpreted as being produced by about 14 stars, each of which mimics main-sequence B3 stars; the length of each string is about 0.1 pc. The H II regions are very young, about 1000 yr old, and it is suggested that the envmronment is controlled by a magnetic field.

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