The TW Hya Rosetta Stone Project I: Radial and vertical distributions of DCN and DCO+

@article{Oberg2020TheTH,
  title={The TW Hya Rosetta Stone Project I: Radial and vertical distributions of DCN and DCO+},
  author={K. Oberg and L. Cleeves and J. Bergner and Joseph Cavanaro and R. Teague and Jane Huang and R. Loomis and E. Bergin and G. Blake and Jenny K. Calahan and P. Cazzoletti and V. Guzm{\'a}n and M. Hogerheijde and M. Kama and J. T. V. Scheltinga and C. Qi and E. Dishoeck and C. Walsh and D. Wilner},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2020}
}
Molecular D/H ratios are frequently used to probe the chemical past of Solar System volatiles. Yet it is unclear which parts of the Solar Nebula hosted an active deuterium fractionation chemistry. To address this question, we present 0".2-0".4 ALMA observations of DCO+ and DCN 2-1, 3-2 and 4-3 towards the nearby protoplanetary disk around TW Hya, taken as part of the TW Hya Rosetta Stone project, augmented with archival data. DCO+ is characterized by an excitation temperature of ~40 K across… Expand

References

SHOWING 1-3 OF 3 REFERENCES
emcee: The MCMC Hammer
RADMC-3D: A multi-purpose radiative transfer tool
Figure 10. DCO + channel maps using the fiducial imaging parameters. The Keplerian mask used to extract spectra is overplotted