Measuring the density structure of an accretion hot spot

@article{Espaillat2021MeasuringTD,
  title={Measuring the density structure of an accretion hot spot},
  author={Catherine C. Espaillat and Connor E. Robinson and Marina M. Romanova and T Thanathibodee and John Wendeborn and Nuria Calvet and Mark T. Reynolds and J Muzerolle},
  journal={Nature},
  year={2021},
  volume={597},
  pages={41 - 44}
}
Magnetospheric accretion models predict that matter from protoplanetary disks accretes onto stars via funnel flows, which follow stellar magnetic field lines and shock on the stellar surfaces1–3, leaving hot spots with density gradients4–6. Previous work has provided observational evidence of varying density in hot spots7, but these observations were not sensitive to the radial density distribution. Attempts have been made to measure this distribution using X-ray observations8–10; however, X… 
Testing the Potential for Radio Variability in Disks around T Tauri Stars with Observations and Chemical Modeling
A multiwavelength observing campaign of the T Tauri star (TTS) GM Aur was undertaken in 2019 December. This campaign obtained Swift X-ray and NUV fluxes, HST NUV spectra, LCOGT u′ g′ r′ i′ and TESS

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