Millimeter-sized Dust Grains Surviving the Water-sublimating Temperature in the Inner 10 au of the FU Ori Disk

@article{Liu2021MillimetersizedDG,
  title={Millimeter-sized Dust Grains Surviving the Water-sublimating Temperature in the Inner 10 au of the FU Ori Disk},
  author={Hauyu Baobab Liu and An-Li Tsai and Wen Ping Chen and Jin Zhong Liu and Xuan Zhang and Shuo Ma and Vardan G. Elbakyan and Joel D. Green and Antonio S. Hales and Sheng-Yuan Liu and Michihiro Takami and Sebasti'an P'erez and Eduard I. Vorobyov and Yao-Lun Yang},
  journal={The Astrophysical Journal},
  year={2021},
  volume={923}
}
Previous observations have shown that the ≲10 au, ≳400 K hot inner disk of the archetypal accretion outburst young stellar object, FU Ori, is dominated by viscous heating. To constrain dust properties in this region, we have performed radio observations toward this disk using the Karl G. Jansky Very Large Array in 2020 June–July, September, and November. We also performed complementary optical photometric monitoring observations. We found that the dust thermal emission from the hot inner disk… 

References

SHOWING 1-10 OF 92 REFERENCES
The Hot Inner Disk of FU Orionis
We have constructed a detailed radiative transfer disk model which reproduces the main features of the spectrum of the outbursting young stellar object FU Orionis from ~4000 A to ~8 μm. Using an
Viscous heating in the disk of the outbursting star FU Orionis
Context. FU Orionis is the archetypal FUor star, a subclass of young stellar objects (YSOs) that undergo rapid brightening events, often gaining between four and six magnitudes on timescales of days.
Effects of Scattering, Temperature Gradients, and Settling on the Derived Dust Properties of Observed Protoplanetary Disks
It is known that the millimeter dust thermal emission of protoplanetary disks is affected by scattering, such that for optically thick disks the emission decreases with respect to the pure absorption
Resolving the FU Orionis System with ALMA: Interacting Twin Disks?
FU Orionis objects are low-mass pre-main sequence stars characterized by dramatic outbursts of several magnitudes in brightness. These outbursts are linked to episodic accretion events in which stars
What pebbles are made of: Interpretation of the V883 Ori disk
Recently, an Atacama Large Millimeter/submillimeter Array (ALMA) observation of the water snow line in the protoplanetary disk around the FU Orionis star V883 Ori was reported. The radial variation
Circumstellar disks of the most vigorously accreting young stars
TLDR
Subaru-HiCIAO observations on FU Orionis objects revealed asymmetric structures on 102 to 103 AU scales of circumstellar disks and envelopes that can indeed be explained by strong gravitational instabilities occurring at the beginning of the disk formation phase.
Scattering-induced Intensity Reduction: Large Mass Content with Small Grains in the Inner Region of the TW Hya disk
Dust continuum observation is one of the best methods to constrain the properties of protoplanetary disks. Recent theoretical studies have suggested that the dust scattering at the millimeter
Early evolution of viscous and self-gravitating circumstellar disks with a dust component
Context. Aims. The long-term evolution of a circumstellar disk starting from its formation and ending in the T Tauri phase was simulated numerically with the purpose of studying the evolution of dust
Radial Variations in Grain Sizes and Dust Scale Heights in the Protoplanetary Disk around HD 163296 Revealed by ALMA Polarization Observations
The HD 163296 disk shows ring and gap substructures with ALMA observations. In addition, this is the only disk where the rings and gaps are spatially resolved in millimeter-wave polarization
Identifying Variability in Deeply Embedded Protostars with ALMA and CARMA
Variability of pre-main-sequence stars observed at optical wavelengths has been attributed tofluctuations in the mass accretion rate from the circumstellar disk onto the forming star.Detailed models
...
1
2
3
4
5
...