High-resolution Mid-infrared Spectroscopy of GV Tau N: Surface Accretion and Detection of NH3 in a Young Protoplanetary Disk

@article{Najita2020HighresolutionMS,
  title={High-resolution Mid-infrared Spectroscopy of GV Tau N: Surface Accretion and Detection of NH3 in a Young Protoplanetary Disk},
  author={Joan Rie Najita and John S. Carr and Sean D. Brittain and John H. Lacy and Matthew J. Richter and Greg Doppmann},
  journal={The Astrophysical Journal},
  year={2020},
  volume={908}
}
Physical processes that redistribute or remove angular momentum from protoplanetary disks can drive mass accretion onto the star and affect the outcome of planet formation. Despite ubiquitous evidence that protoplanetary disks are engaged in accretion, the process(es) responsible remain unclear. Here we present evidence for redshifted molecular absorption in the spectrum of a Class I source that indicates rapid inflow at the disk surface. High-resolution mid-infrared spectroscopy of GV Tau N… Expand
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References

SHOWING 1-10 OF 60 REFERENCES
Gas kinematics of key prebiotic molecules in GV Tau N revealed with an ALMA, PdBI, and Herschel synergy
A large effort has been made to detect warm gas in the planet formation zone of circumstellar discs using space and ground-based near infrared facilities. GV Tau N, the most obscured component of theExpand
  • 2010
Layered Accretion in T Tauri Disks
FORMATION OF ORGANIC MOLECULES AND WATER IN WARM DISK ATMOSPHERES
Observations from Spitzer and ground-based infrared spectroscopy reveal significant diversity in the molecular emission from the inner few AU of T Tauri disks. We explore theoretically the possibleExpand
The Nitrogen Carrier in Inner Protoplanetary Disks
The dominant reservoirs of elemental nitrogen in protoplanetary disks have not yet been observationally identified. Likely candidates are HCN, NH_3, and N_2. The relative abundances of these carriersExpand
  • ApJ
  • 2018
ALMA Survey of Lupus Protoplanetary Disks II: Gas Disk Radii
We present ALMA Band 6 observations of a complete sample of protoplanetary disks in the young (1-3 Myr) Lupus star-forming region, covering the 1.33 mm continuum and the 12CO, 13CO, and C18O J=2-1Expand
Modelling mid-infrared molecular emission lines from T Tauri stars
We introduce a new modelling framework including the Fast Line Tracer (FLITS) to simulate infrared line emission spectra from protoplanetary discs. This paper focusses on the mid-IR spectral regionExpand
The formation of rings and gaps in magnetically coupled disc-wind systems: ambipolar diffusion and reconnection
Radial substructures in circumstellar disks are now routinely observed by ALMA. There is also growing observational evidence that such disks can accrete through angular momentum removal by rotatingExpand
A Multi-ringed, Modestly Inclined Protoplanetary Disk around AA Tau
AA Tau is the archetype for a class of stars with a peculiar periodic photometric variability thought to be related to a warped inner disk structure with a nearly edge-on viewing geometry. We presentExpand
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