Publications (13)
Gas dynamics in the inner few AU around the Herbig B[e] star MWC297: Indications of a disk wind from kinematic modeling and velocity-resolved interferometric imaging
Edward Hone, Stefan Kraus, Alexander Kreplin +4
We present near-infrared AMBER (R = 12, 000) and CRIRES (R = 100, 000) observations of the Herbig B[e] star MWC297 in the hydrogen Br-gamma-line. Using the VLTI unit telescopes, we…
The TORUS radiation transfer code
Tim Harries, Tom Haworth, David Acreman +2
We present a review of the TORUS radiation transfer and hydrodynamics code. TORUS uses a 1-D, 2-D or3-D adaptive mesh refinement scheme to store and manipulate the state variables,…
Phase Referencing in Optical Interferometry
Mercedes E. Filho, Paulo Garcia, Gilles Duvert +20
One of the aims of next generation optical interferometric instrumentation is to be able to make use of information contained in the visibility phase to construct high dynamic rang…
Linear spectropolarimetry of young and other emission line stars
Janet Drew, Jorick Vink, Tim Harries +2
The aim of this article is to demonstrate the useful role that can be played by spectropolarimetric observations of young and evolved emission line stars that analyse the linearly…
Gemini-LIGHTS: Herbig Ae/Be and massive T-Tauri protoplanetary disks imaged with Gemini Planet Imager
Evan A. Rich, John D. Monnier, Alicia Aarnio +20
We present the complete sample of protoplanetary disks from the Gemini- Large Imaging with GPI Herbig/T-tauri Survey (Gemini-LIGHTS) which observed bright Herbig Ae/Be stars and T-…
The Science Case for the Planet Formation Imager (PFI)
Stefan Kraus, John Monnier, Tim Harries +16
Among the most fascinating and hotly-debated areas in contemporary astrophysics are the means by which planetary systems are assembled from the large rotating disks of gas and dust…
VITRUV - Science Cases
Paulo J. V. Garcia, Jean-Phillipe Berger, Romano Corradi +11
VITRUV is a second generation spectro-imager for the PRIMA enabled Very Large Telescope Interferometer. By combining simultaneously up to 8 telescopes VITRUV makes the VLTI up to 6…
On the properties of discs around accreting brown dwarfs
Nathan Mayne, Tim Harries
We present a grid of models of accreting brown dwarf systems with circumstellar discs. The calculations involve a self-consistent solution of both vertical hydrostatic and radiativ…
TYC 8241 2652 1 and the case of the disappearing disk: no smoking gun yet
Hans Moritz Günther, Stefan Kraus, Carl Melis +12
TYC 8241 2652 1 is a young star that showed a strong mid-infrared (mid-IR, 8-25 mu) excess in all observations before 2008 consistent with a dusty disk. Between 2008 and 2010 the m…
High-cadence, High-resolution Spectroscopic Observations of Herbig Stars HD 98922 and V1295 Aquila
Alicia Aarnio, John Monnier, Tim Harries +4
Recent observational work has indicated that mechanisms for accretion and outflow in Herbig Ae/Be star-disk systems may differ from magnetospheric accretion (MA) as it is thought t…
Phase Closure Image Reconstruction for Future VLTI Instrumentation
Mercedes E. Filho, Stephanie Renard, Paulo Garcia +21
Classically, optical and near-infrared interferometry have relied on closure phase techniques to produce images. Such techniques allow us to achieve modest dynamic ranges. In order…
Is the spiral morphology of the Elias 2-27 circumstellar disc due to gravitational instability?
Cassandra Hall, Ken Rice, Giovanni Dipierro +3
A recent ALMA observation of the Elias 2-27 system revealed a two-armed structure extending out to ~300 au in radius. The protostellar disc surrounding the central star is unusuall…
A multi-instrument and multi-wavelength high angular resolution study of MWC614: quantum heated particles inside the disk cavity
Jacques Kluska, Stefan Kraus, Claire L. Davies +13
High angular resolution observations of young stellar objects are required to study the inner astronomical units of protoplanetary disks in which the majority of planets form. As t…