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The shocked gas distribution around CepA: the H2S and SO2 picture.

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Title: The shocked gas distribution around CepA: the H2S and SO2 picture.
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]
Copyright of Astrophysics & Space Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: 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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  Data: <i>Copyright of Astrophysics & Space Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Interstellar medium
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      – SubjectFull: Bipolar outflows (Astrophysics)
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      – SubjectFull: Astrophysical jets
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              Text: 2003
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