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.
@article{arxiv.1610.05596,
title = {Clumpy molecular structures revolving the B[e] supergiant MWC 137},
author = {M. Kraus and L. S. Cidale and T. Liimets and C. E. Cappa and N. Duronea and D. S. Gunawan and M. E. Oksala and M. Santander-Garcia and M. L. Arias and D. H. Nickeler and G. Maravelias and M. Borges Fernandes and M. Cure},
journal= {arXiv preprint arXiv:1610.05596},
year = {2016}
}
Comments
2 pages, 1 figure, to appear in the proceedings of the workshop 'The B[e] Phenomenom: Forty Years of Studies'