Hydrodynamical Simulations of Black Hole Binary Formation in AGN Disks
We study close encounters between two single black holes (BHs) embedded in an AGN disk
using a series of global 2D hydrodynamics simulations. We find that when the disk density is …
using a series of global 2D hydrodynamics simulations. We find that when the disk density is …
Dynamical evidence of a spiral arm–driving planet in the MWC 758 protoplanetary disk
More than a dozen young stars host spiral arms in their surrounding protoplanetary disks.
The excitation mechanisms of such arms are under debate. The two leading hypotheses …
The excitation mechanisms of such arms are under debate. The two leading hypotheses …
A search for companions via direct imaging in the DSHARP planet-forming disks
Abstract The" Disk Substructures at High Angular Resolution Project"(DSHARP) has
revealed an abundance and ubiquity of rings and gaps over a large sample of young planet …
revealed an abundance and ubiquity of rings and gaps over a large sample of young planet …
Meso-scale instability triggered by dust feedback in dusty rings: origin and observational implications
High spatial resolution observations of protoplanetary disks by ALMA have revealed many
substructures that are providing interesting constraints on disk physics as well as dust …
substructures that are providing interesting constraints on disk physics as well as dust …
A simple time-dependent method for calculating spirals: applications to eccentric planets in protoplanetary discs
Z Zhu, RM Zhang - Monthly Notices of the Royal Astronomical …, 2022 - academic.oup.com
Spirals in protoplanetary discs have been used to locate the potential planet in discs. Since
only the spiral shape from a circularly orbiting perturber is known, most previous works …
only the spiral shape from a circularly orbiting perturber is known, most previous works …
A Buddy for Betelgeuse: Binarity as the Origin of the Long Secondary Period in α Orionis
We predict the existence of α Ori B, a low-mass companion orbiting Betelgeuse. This is
motivated by the presence of a 2170 day long secondary period (LSP) in Betelgeuse's …
motivated by the presence of a 2170 day long secondary period (LSP) in Betelgeuse's …
Wide Dust Gaps in Protoplanetary Disks Induced by Eccentric Planets: A Mass-eccentricity Degeneracy
The tidal perturbation of embedded protoplanets on their natal disks has been widely
attributed to be the cause of gap-ring structures in submillimeter images of protoplanetary …
attributed to be the cause of gap-ring structures in submillimeter images of protoplanetary …
Estimating the depth of gaps opened by planets in eccentric orbit
FJ Sánchez-Salcedo, RO Chametla… - Monthly Notices of the …, 2023 - academic.oup.com
Planets can carve gaps in the surface density of protoplanetary discs. The formation of these
gaps can reduce the corotation torques acting on the planets. In addition, gaps can halt the …
gaps can reduce the corotation torques acting on the planets. In addition, gaps can halt the …
Origin of transition disk cavities-Pebble-accreting protoplanets vs super-Jupiters
Context. Protoplanetary disks surrounding young stars are the birth places of planets.
Among them, transition disks with inner dust cavities of tens of au are sometimes suggested …
Among them, transition disks with inner dust cavities of tens of au are sometimes suggested …
Spiral Arm Pattern Motion in the SAO 206462 Protoplanetary Disk
Spiral arms have been observed in more than a dozen protoplanetary disks, yet the origin of
nearly all systems is under debate. Multi-epoch monitoring of spiral arm morphology offers a …
nearly all systems is under debate. Multi-epoch monitoring of spiral arm morphology offers a …