A Catalogue of Radio Sources Within 30 Degrees of Cepheus-A

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

A 1°.0 × 11°.0.0 region around the Cep A condensation was mapped at λ21 cm with a resolution of 24" x 27" and a flux density limit at the field centre of 3.75 mJy, using the Westerbork Synthesis Radio Telescope. The positions of the 20 detected sources are shown in relation to the distribution of CO emission measured by Sargent (1977). A comparison of the λ21 cm flux densities with previously published fluxes and with new observations made at the Algonquin Radio Observatory establishes that 4 of the sources are thermal. No stars as early as B 0 appear to have formed, implying that the area around Cep A is not one where massive stars are forming.

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