The shocked gas distribution around CepA: the H2S and SO2 picture.
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| Title: | The shocked gas distribution around CepA: the H |
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| Authors: | Codella, Claudio1, Bachiller, Rafael2, Benedettini, Milena3, Caselli, Paola4 |
| Source: | Astrophysics & Space Science. 2003, Vol. 287 Issue 1-4, p171-174. 4p. |
| Subjects: | Star formation, Interstellar medium, Bipolar outflows (Astrophysics), Astrophysical jets, Astrophysics, Space sciences |
| Abstract: | The preliminary results from a multiline mm-wave survey of H2S and SO2 emission towards the Cepheus A star forming region are presented. Large scale maps (≃ 5'×4') and high-resolution line profiles which clearly indicate the occurrence of multiple H2S and SO2 outflows are reported. In particular, a 0.6 pc long outflow flowing towards South from the CepA-East position has been discovered. In addition, besides the well known regions CepA-East and CepA-West other four clumps of shocked gas have been detected. These clumps exhibit distinct H2S/SO2 ratios, suggesting different chemical compositions for different regions and show that in Cepheus A the mass loss has strongly modified the chemistry of the quiescent gas. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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