High Precision Dynamical Masses of Pre-Main Sequence Stars with ALMA and Gaia

@article{Sheehan2019HighPD,
  title={High Precision Dynamical Masses of Pre-Main Sequence Stars with ALMA and Gaia},
  author={P. Sheehan and Y. Wu and J. Eisner and John Tobin},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2019}
}
  • P. Sheehan, Y. Wu, +1 author John Tobin
  • Published 2019
  • Physics
  • arXiv: Solar and Stellar Astrophysics
  • The Keplerian rotation in protoplanetary disks can be used to robustly measure stellar masses at very high precision if the source distance is known. We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of spatially and spectrally resolved $^{12}$CO (2--1) emission towards the disks around 2MASS J16262774--2527247 (the tertiary companion to ROXs 12 at 5100 au), CT Cha, and DH Tau. We employ detailed modeling of the Keplerian rotation profile, coupled with accurate… CONTINUE READING
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