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OB stars towards NGC 6357 and NGC 6334

Published online by Cambridge University Press:  07 March 2018

Delphine Russeil
Delphine Russeil*
Affiliation:
Aix Marseille Univ, CNRS, LAM, Laboratoire d'Astrophysique de Marseille, Marseille, France email: delphine.russeil@lam.fr
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Abstract

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The star forming regions NGC6334 and NGC6357 are amid the most active star-forming complexes of our Galaxy where massive star formation is occuring. Both complexes gather several HII regions but they exhibit different aspects: NGC6334 is characterised by a dense molecular ridge where recent massive star formation is obvious while NGC6357 is dominated by the action of the stellar cluster Pismis 24 which have shaped a large cavity. To understand and compare the formation of massive stars in these two regions requires to precise the distance and characterise the proper motions of the O to B3 stellar population in these regions.

Keywords

stars: distancesstars: early-typeISM: HII regions
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 341 - 342
Copyright
Copyright © International Astronomical Union 2018 

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