Parallaxes of Star-forming Regions in the Outer Spiral Arm of the Milky Way

Authors: 
Hachisuka, K.; Choi, Y. K.; Reid, M. J.; Brunthaler, A.; Menten, K. M.; Sanna, A.; Dame, T. M.
Year: 
2 015
arXiv: 
http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2015ApJ...800....2H&db_key=AST&link_type=PREPRINT
Sub project: 
A
Journal Reference: 
ApJ 800, 2