Catastrophic Events in Protoplanetary Disks and Their Observational Manifestations

@article{Demidova2019CatastrophicEI,
  title={Catastrophic Events in Protoplanetary Disks and Their Observational Manifestations},
  author={Tatiana V. Demidova and Vladimir P. Grinin},
  journal={The Astrophysical Journal},
  year={2019}
}
Observations of protoplanetary disks with high angular resolution using an ALMA interferometer showed that ring-shaped structures are often visible in their images, indicating strong disturbances in the disks. The mechanisms of their formation are vividly discussed in the literature. This article shows that the formation of such structures can be the result of destructive collisions of large bodies (planetesimals and planetary embryos) accompanied by the formation of a large number of dust… 
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References

SHOWING 1-10 OF 60 REFERENCES
Dust Evolution Can Produce Scattered Light Gaps in Protoplanetary Disks
Recent imaging of protoplanetary disks with high resolution and contrast have revealed a striking variety of substructure. Of particular interest are cases where near-infrared scattered light images…
Tracing large-scale structures in circumstellar disks with ALMA
Context. Planets are supposed to form in circumstellar disks. The additional gravitational potential of a planet perturbs the disk and leads to characteristic structures, i.e. spiral waves and gaps,…
A Giant Impact Origin of Pluto-Charon
TLDR
Hydrodynamic simulations are used to demonstrate that the formation of Pluto-Charon by means of a large collision is quite plausible, and suggest that collisions between 1000-kilometer-class objects occurred in the early inner Kuiper belt.
Three-lane and multilane signatures of planets in planetesimal discs
In massive numerical experiments we show that a planet embedded in a planetesimal disk induces a characteristic multi-lane "planetosignature" representing a pattern of several stellar-centric rings.…
Evidence for a massive dust-trapping vortex connected to spirals
Context. Spiral arms, rings and large scale asymmetries are structures observed in high resolution observations of protoplanetary disks, and it appears that some of the disks showing spiral arms in…
Shadows and asymmetries in the T Tauri disk HD 143006: Evidence for a misaligned inner disk.
While planet formation is thought to occur early in the history of a protoplanetary disk, the presence of planets embedded in disks, or of other processes driving disk evolution, might be traced from…
On the formation of multiple concentric rings and gaps in protoplanetary disks
As spiral waves driven by a planet in a gaseous disk steepen into a shock, they deposit angular momentum, opening a gap in the disk. This has been well studied using both linear theory and numerical…
Extreme Debris Disk Variability: Exploring the Diverse Outcomes of Large Asteroid Impacts During the Era of Terrestrial Planet Formation
The most dramatic phases of terrestrial planet formation are thought to be oligarchic and chaotic growth, on timescales of up to 100-200 Myr, when violent impacts occur between large planetesimals of…
Dust-driven viscous ring-instability in protoplanetary disks
Protoplanetary disks often appear as multiple concentric rings in dust continuum emission maps and scattered light images. These features are often associated with possible young planets in these…
Sintering-induced Dust Ring Formation in Protoplanetary Disks: Application to the HL Tau Disk
The latest observation of HL Tau by ALMA revealed spectacular concentric dust rings in its circumstellar disk. We attempt to explain the multiple ring structure as a consequence of aggregate…
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