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arXiv · 1610.05596

Clumpy molecular structures revolving the B[e] supergiant MWC 137

M. Kraus·L. S. Cidale·T. Liimets·C. E. Cappa·N. Duronea·D. S. Gunawan·M. E. Oksala·M. Santander-Garcia·M. L. Arias·D. H. Nickeler·G. Maravelias·M. Borges Fernandes·M. Cure
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Abstract

The peculiar emission-line star MWC 137 with its extended optical nebula was recently classified as B[e] supergiant. To study the spatial distribution of its circumstellar molecular gas on small and large scales, we obtained near-infrared and radio observations using SINFONI and APEX, respectively. We find that the hot CO gas is arranged in moving clumpy ring and shell structures close to the star, while a cold CO envelope is encircling the borders of the optical nebula from the south to the west.

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M. Kraus, L. S. Cidale, T. Liimets, C. E. Cappa, N. Duronea, D. S. Gunawan, M. E. Oksala, M. Santander-Garcia, M. L. Arias, D. H. Nickeler, G. Maravelias, M. Borges Fernandes, M. Cure. 2016-10-17. Clumpy molecular structures revolving the B[e] supergiant MWC 137. https://arxiv.org/abs/1610.05596

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