179 citations · 1.7k across the 72 of their papers we have counts for
32 papers · 1 filter
XUE. ProDiMo models of internally and externally irradiated planet-forming disks around 0.3-4.0 solar mass stars (The IRIS project I)
Jenny Frediani, Konstantin V. Getman, Peter Woitke +18
Most stars and planets form in massive star-forming regions, where disks are exposed to external far-ultraviolet (FUV) radiation from nearby O- and B-type stars. The combined effec…
A parametric model for externally irradiated protoplanetary disks with photoevaporative winds
Luke Keyte, Thomas J. Haworth
Protoplanetary disks in massive star-forming regions may be exposed to ultraviolet radiation fields orders of magnitude stronger than the interstellar background. This intense radi…
Formation of multi-planetary systems via pebble accretion in externally photoevaporating discs in stellar clusters
Lin Qiao, Gavin A. L. Coleman, Thomas J. Haworth
In this paper, we investigate how external photo-evaporation influences the formation, dynamical evolution and the resultant planetary architecture of multi-planet systems born in…
Using simultaneous mass accretion and external photoevaporation rates for d203-504 to constrain disc evolution processes
Gavin A. L. Coleman, Thomas J. Haworth, Ilane Schroetter +1
We cannot understand planet formation without understanding disc evolutionary processes. However, there is currently ambiguity about how protoplanetary discs transport angular mome…
Line ratio identification of external photoevaporation
Tyger Peake, Thomas J. Haworth, Mari-Liis Aru +1
External photoevaporation of protoplanetary discs, by massive O stars in stellar clusters, is thought to be a significant process in the evolution of a disc. It has been shown to r…
A Particle-based Approach to Dust Dynamics in External Photoevaporative Winds
S. Paine, T. J. Haworth, R. P. Nelson
Planet-forming discs in sufficiently strong UV environments lose gas in external photoevaporative winds. Dust can also be entrained within these winds, which has consequences for t…
How the microphysical properties of external photoevaporation influence the global evolution of protoplanetary discs
Gavin A. L. Coleman, Thomas J. Haworth, Lin Qiao
External photoevaporation is one of the dominant mechanisms for mass loss from protoplanetary discs. However this mass loss is theoretically expected to depend upon the microphysic…
XUE. Thermochemical Modeling Suggests a Compact and Gas-Depleted Structure for a Distant, Irradiated Protoplanetary Disk
Bayron Portilla-Revelo, Konstantin V. Getman, María Claudia Ramírez-Tannus +14
Unveiling the physical structure of protoplanetary disk is crucial for interpreting the diversity of the exoplanet population. Until recently, the census of the physical properties…
Discovery of Radio Recombination Lines from Proplyds in the Orion Nebula Cluster
Ryan D. Boyden, Kimberly L. Emig, Nicholas P. Ballering +5
We present new Atacama Large Millimeter/submillimeter Array observations that, for the first time, detect hydrogen and helium radio recombination lines from a protoplanetary disk.…
Impact of photoevaporative winds in chemical models of externally irradiated protoplanetary disks
Luke Keyte, Thomas J. Haworth
Most stars form in dense clusters within high-mass star-forming regions, where protoplanetary disks may be exposed to intense UV radiation from nearby massive stars. While previous…
Photoevaporation obfuscates the distinction between wind and viscous angular momentum transport in protoplanetary discs
Gavin A. L. Coleman, Joseph K. Mroueh, Thomas J. Haworth
How protoplanetary discs evolve remains an unanswered question. Competing theories of viscosity and magnetohydrodynamic disc winds have been put forward as the drivers of angular m…
The external photoevaporation of structured protoplanetary disks
Matías Gárate, Paola Pinilla, Thomas J. Haworth +1
The dust in planet-forming disks evolve rapidly through growth and radial drift, and external photoevaporation also contributes to this evolution in massive star-forming regions. W…
FRIED v2. A new grid of mass loss rates for externally irradiated protoplanetary discs
Thomas J. Haworth, Gavin A. L. Coleman, Lin Qiao +2
We present a new FRIED grid of mass loss rates for externally far-ultraviolet (FUV) irradiated protoplanetary discs. As a precursor to the new grid, we also explore the microphysic…
Isolating Dust and Free-Free Emission in ONC Proplyds with ALMA Band 3 Observations
Nicholas P. Ballering, L. Ilsedore Cleeves, Thomas J. Haworth +6
The Orion Nebula Cluster (ONC) hosts protoplanetary disks experiencing external photoevaporation by the cluster's intense UV field. These ``proplyds" are comprised of a disk surrou…
Planet formation via pebble accretion in externally photoevaporating discs
Lin Qiao, Gavin A. L. Coleman, Thomas J. Haworth
We demonstrate that planet formation via pebble accretion is sensitive to external photoevaporation of the outer disc. In pebble accretion, planets grow by accreting from a flux of…
[OI] 6300Å emission as a probe of external photoevaporation of protoplanetary discs
Giulia Ballabio, Thomas J. Haworth, W. J. Henney
We study the utility of the [OI] 6300 forbidden line for identifying and interpreting externally driven photoevaporative winds in different environments and a…
The growth and migration of massive planets under the influence of external photoevaporation
Andrew J. Winter, Thomas J. Haworth, Gavin A. L. Coleman +1
The formation of gas giant planets must occur during the first few Myr of a star's lifetime, when the protoplanetary disc still contains sufficient gas to be accreted onto the plan…
The external photoevaporation of planet-forming discs
Andrew J. Winter, Thomas J. Haworth
Planet-forming disc evolution is not independent of the star formation and feedback process in giant molecular clouds. In particular, OB stars emit UV radiation that heats and disp…
Dispersal of protoplanetary discs: How stellar properties and the local environment determine the pathway of evolution
Gavin A. L. Coleman, Thomas J. Haworth
We study the evolution and final dispersal of protoplanetary discs that evolve under the action of internal and external photoevaporation, and different degrees of viscous transpor…
The evolution of protoplanetary discs in star formation and feedback simulations
Lin Qiao, Thomas J. Haworth, Andrew D. Sellek +1
We couple star cluster formation and feedback simulations of a Carina-like star forming region with 1D disc evolutionary models to study the impact of external photoevaporation on…
An APEX search for carbon emission from NGC 1977 proplyds
Thomas J. Haworth, Jinyoung S. Kim, Lin Qiao +8
We used the Atacama Pathfinder Experiment (APEX) telescope to search for CI 1-0 (492.16GHz) emission towards 8 proplyds in NGC 1977, which is an FUV radiation environment two order…
Determining dispersal mechanisms of protoplanetary disks using accretion and wind mass loss rates
Yasuhiro Hasegawa, Thomas J. Haworth, Keri Hoadley +6
Understanding the origin of accretion and dispersal of protoplanetary disks is fundamental for investigating planet formation. Recent numerical simulations show that launching wind…
Testing viscous disc theory using the balance between stellar accretion and external photoevaporation of protoplanetary discs
Andrew J. Winter, Megan Ansdell, Thomas J. Haworth +1
The nature and rate of (viscous) angular momentum transport in protoplanetary discs (PPDs) has important consequences for the formation process of planetary systems. While accretio…
A Three Dimensional View of Gomez's Hamburger
Richard Teague, Marija R. Jankovic, Thomas J. Haworth +2
Unraveling the 3D physical structure, the temperature and density distribution, of protoplanetary discs is an essential step if we are to confront simulations of embedded planets o…