INTERNAL AND RELATIVE MOTIONS OF THE TAURUS AND OPHIUCHUS STAR-FORMING REGIONS

@article{Rivera2015INTERNALAR,
  title={INTERNAL AND RELATIVE MOTIONS OF THE TAURUS AND OPHIUCHUS STAR-FORMING REGIONS},
  author={Juana L. Rivera and Laurent Loinard and Sergio A. Dzib and Gisela N. Ortiz-Le'on and Luis F. Rodr{\'i}guez and Rosa M. Torres},
  journal={The Astrophysical Journal},
  year={2015},
  volume={807}
}
We investigate the internal and relative motions of the Taurus and Ophiuchus star-forming regions using a sample of young stars with accurately measured radial velocities and proper motions. We find no evidence for expansion or contraction of the Taurus complex, but a clear indication of global rotation, resulting in velocity gradients of the order of 0.1 km s−1 pc−1 across the region. In the case of Ophichus, more data are needed to reliably establish its internal kinematics. Both Taurus and… 
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