Protoplanetary Disk Properties in the Orion Nebula Cluster: Initial Results from Deep, High-resolution ALMA Observations

  title={Protoplanetary Disk Properties in the Orion Nebula Cluster: Initial Results from Deep, High-resolution ALMA Observations},
  author={Joshua A. Eisner and H{\'e}ctor G. Arce and Nicholas P. Ballering and J. M. Bally and Sean M. Andrews and Ryan D. Boyden and James Di Francesco and Min Fang and Doug Johnstone and J. Serena Kim and Rita K. Mann and Brenda C. Matthews and Ilaria Pascucci and Luca Ricci and Patrick D. Sheehan and J. P. Williams},
  journal={The Astrophysical Journal},
We present Atacama Large Millimeter Array 850 μm continuum observations of the Orion Nebula Cluster that provide the highest angular resolution (∼0.″1 ≈ 40 au) and deepest sensitivity (∼0.1 mJy) of the region to date. We mosaicked a field containing ∼225 optical or near-IR-identified young stars, ∼60 of which are also optically identified “proplyds.” We detect continuum emission at 850 μm toward ∼80% of the proplyd sample, and ∼50% of the larger sample of previously identified cluster members… 

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Testing a New Model of Embedded Protostellar Disks against Observations: The Majority of Orion Class 0/I Disks Are Likely Warm, Massive, and Gravitationally Unstable

  • Wenrui Xu
  • Physics, Geology
    The Astrophysical Journal
  • 2022
We formulate a parameterized model of embedded protostellar disks and test its ability to estimate disk properties by fitting dust-continuum observations. The main physical assumptions of our model



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