Did the Event Horizon Telescope Detect the Base of the Submilliarsecond Tubular Jet in M87?

@article{Punsly2021DidTE,
  title={Did the Event Horizon Telescope Detect the Base of the Submilliarsecond Tubular Jet in M87?},
  author={Brian Punsly and Sina Chen},
  journal={The Astrophysical Journal Letters},
  year={2021},
  volume={921}
}
A high-sensitivity, 7 mm Very Long Baseline Array image of M 87 was previously analyzed in order to estimate the bulk flow jet velocity between 0.4 and 0.65 mas from the point of origin using the asymmetry between the well-characterized double-ridged counter-jet (unique to this image) and the double-ridged jet. We use this same image to estimate the cross-sectional area of this tubular stream. The velocity, acceleration, cross-sectional area, and flux density along this stream determine a… 
Hybrid Mapping of the Black Hole Shadow in M87
We present a reanalysis of the Event Horizon Telescope 228 GHz observations of M87. We apply traditional hybrid mapping techniques to the publicly available network-calibrated data. We explore the

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