68 citations · 386 across the 29 of their papers we have counts for
31 papers
Bridging the gap between stars and planets
Aina Palau, Dimitris Stamatellos, Matthew Bate +58
The formation mechanisms of brown dwarfs (BDs) and free-floating planets (FFPs) are poorly constrained. The two main competing scenarios include the star-like scenario, where these…
Pulsed Accretion onto Eccentric Binaries in Highly Misaligned Circumbinary Disks
Ruiqi Yang, Jeremy L. Smallwood, Shang-Fei Liu +1
We present three-dimensional smoothed particle hydrodynamics simulations of highly misaligned circumbinary disks (CBDs) around moderately eccentric equal-mass binaries ($e_\mathrm{…
Dust Growth in Binary Systems: Inhibition of dust settling and growth in circumbinary discs
Antoine Alaguero, Nicolás Cuello, Jean-François Gonzalez +4
Stellar multiplicity alters the density structure of protoplanetary discs and thereby the initial conditions for planet formation. Yet, the interplay between companion-disc interac…
Misaligned circumbinary discs around unequal-mass eccentric binaries: alignment, morphology, and binary accretion variability
Ruiqi Yang, Jeremy L. Smallwood, Hongping Deng +4
Binary systems are ubiquitous in the Universe and often host circumbinary discs that are misaligned with the binary orbital plane. Such misalignments can affect disc evolution and…
Evolution of dust in a protoplanetary disc driven by stellar flybys: implications for the streaming instability
Wei-Shan Su, Jeremy L. Smallwood, Min-Kai Lin +2
Stellar flybys are a common dynamical process in young stellar clusters and can significantly reshape protoplanetary discs. However, their impact on dust dynamics remains poorly un…
The polar debris disc around 99 Herculis: A potential signpost for polar circumbinary planets
Jeremy L. Smallwood, William DeRocco, Zhizhen Qin +1
The nearby binary star system 99 Herculis (99 Her) is host to the only known polar-aligned circumbinary debris disc. We investigate the hypothesis that the narrow structure of this…
Polar alignment of a circumbinary disc around a brown dwarf binary
Jeremy L. Smallwood, Thomas A. Baycroft, Amaury H. M. J. Triaud +1
Inspired by recent observations suggesting that the retrograde precession of the brown dwarf binary 2M1510 AB is consistent with induction by a polar circumbinary planet, we invest…
Disc-planet misalignment from an unstable triple system: IRAS04125
Rebecca Nealon, Jeremy L. Smallwood, Hossam Aly +5
The IRAS01425+2902 wide binary system was recently reported to have both a young planet and a puzzling geometric arrangement, where the planet and binary both orbit edge-on, but mi…
Shedding light on the origin of the broken misaligned circumtriple disk around GW Ori
Jeremy L. Smallwood, Stephen H. Lubow, Rebecca G. Martin +1
We revisit the origin of the observed misaligned rings in the circumtriple disk around GW Ori. Previous studies appeared to disagree on whether disk breaking is caused by the diffe…
Circumbinary accretion as a diagnostic for binary--disc misalignment
Jeremy L. Smallwood, Ya-Ping Li, Hongping Deng +1
Binary star systems can accrete material originating from a circumbinary disc. Since it is common for the circumbinary disc to be tilted with respect to the binary orbital plane, w…
Observational Signatures of Dust Traffic Jams in Polar-Aligning Circumbinary Disks
Jeremy L. Smallwood, Rebecca Nealon, Hsi-Wei Yen +4
Misaligned circumbinary disks will produce dust traffic jams during alignment or anti-alignment to the binary orbital plane. We conduct a hydrodynamical simulation of an initially…
Polar alignment of a dusty circumbinary disc -- II. Application to 99 Herculis
Jeremy L. Smallwood, Min-Kai Lin, Rebecca Nealon +2
We investigate the formation of dust traffic jams in polar-aligning circumbinary discs. In our first paper, we found as the circumbinary disc evolves towards a polar configuration…
Polar alignment of a dusty circumbinary disc -- I. Dust ring formation
Jeremy L. Smallwood, Min-Kai Lin, Hossam Aly +2
We investigate the formation of dust traffic jams in polar-aligning circumbinary discs. We use 3D smoothed particle hydrodynamical simulations of both gas and dust to model an init…
Outcomes of Planetary Collisions: Importance of Gravity and Material Properties
Jeremy L. Smallwood, Jeffrey S. Lee, Lorin S. Matthews +1
The final sizes, composition, and angular momenta of solid planetary bodies depend on the outcomes of collisions between planetary embryos. The most common numerical method for sim…
Formation of misaligned second-generation discs through flyby encounters
Jeremy L. Smallwood, Rebecca Nealon, Nicolás Cuello +2
Observations reveal protoplanetary discs being perturbed by flyby candidates. We simulate a scenario where an unbound perturber, i.e., a flyby, undergoes an inclined grazing encoun…
Formation of the warped debris disc around Pictoris
Jeremy L. Smallwood
In light of the recent confirmation of an eccentric orbit giant planet, Pic c, I revisit the formation and evolution of the warped debris disc in the system. Pic c is inter…
Exciting spiral arms in protoplanetary discs from flybys
Jeremy L. Smallwood, Chao-Chin Yang, Zhaohuan Zhu +4
Spiral arms are observed in numerous protoplanetary discs. These spiral arms can be excited by companions, either on bound or unbound orbits. We simulate a scenario where an unboun…
Formation of polar circumstellar discs in binary star systems
Jeremy L. Smallwood, Rebecca G. Martin, Stephen H. Lubow
We investigate the flow of material from highly misaligned and polar circumbinary discs that feed the formation of circumstellar discs around each binary component. With three-dime…
Polar alignment of a massive retrograde circumbinary disc around an eccentric binary
Charles P. Abod, Cheng Chen, Jeremy Smallwood +3
A test particle orbit around an eccentric binary has two stationary states in which there is no nodal precession: coplanar and polar. Nodal precession of a misaligned test particle…
Accretion onto a binary from a polar circumbinary disc
Jeremy L. Smallwood, Stephen H. Lubow, Rebecca G. Martin
We present hydrodynamical simulations to model the accretion flow from a polar circumbinary disc onto a high eccentricity () binary star system with near unity mass ratio (…
GW Ori: circumtriple rings and planets
Jeremy L. Smallwood, Rebecca Nealon, Cheng Chen +4
GW Ori is a hierarchical triple star system with a misaligned circumtriple protoplanetary disc. Recent ALMA observations have identified three dust rings with a prominent gap at $1…
On the role of resonances in polluting white dwarfs by asteroids
Jeremy L. Smallwood, Rebecca G. Martin, Mario Livio +1
Pollution of white dwarf atmospheres may be caused by asteroids that originate from the locations of secular and mean-motion resonances in planetary systems. Asteroids in these loc…
Sustained Kozai-Lidov oscillations in misaligned circumstellar gas disks
Jeremy L. Smallwood, Rebecca G. Martin, Stephen H. Lubow
A disk around one component of a binary star system with sufficiently high inclination can undergo Kozai-Lidov (KL) oscillations during which the disk inclination and disk eccentri…
GW Ori: Interactions Between a Triple-star System and its Circumtriple Disk in Action
Jiaqing Bi, Nienke van der Marel, Ruobing Dong +17
GW Ori is a hierarchical triple system which has a rare circumtriple disk. We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of 1.3 mm dust continuum and…