English

The distance to the young open cluster Westerlund 2

Astrophysics of Galaxies 2012-09-11 v1

Abstract

Evidence is presented indicating that the young star cluster Westerlund~2 lies d3.0d_{\odot}\sim3.0 kpc in the direction of Carina. The distance is tied partly to new UBVRIcUBVRI_c photometry and revised spectral classifications for cluster stars, which imply that dust in the direction of Carina is characterized by an anomalous extinction law (RV3.8R_V\sim3.8). That result was determined from a multi-faceted approach relying on the variable-extinction and color excess methods.

Keywords

Cite

@article{arxiv.1209.2080,
  title  = {The distance to the young open cluster Westerlund 2},
  author = {Giovanni Carraro and David Turner and Daniel Majaess and Gustavo Baume},
  journal= {arXiv preprint arXiv:1209.2080},
  year   = {2012}
}

Comments

4 pages, 4 eps figure, proceedings of IAU Symposium 289, Beijing, August 2012