Interferometric Evidence for Quantum Heated Particles in the Inner Region of Protoplanetary Disks around Herbig Stars
arXiv:1612.06311 · doi:10.1051/0004-6361/201628820
Abstract
To understand the chemical composition of planets, it is important to know the chemical composition of the region where they form in protoplanetary disks. Due to its fundamental role in chemical and biological processes, carbon is a key element to trace. We aim to identify the carriers and processes behind the extended NIR flux observed around several Herbig stars. We compare the extended NIR flux from objects in the PIONIER Herbig Ae/Be survey with their flux in the PAH features. HD 100453 is used as a benchmark case to investigate the influence of quantum heated particles, like PAHs or very small carbonaceous grains, in more detail. We use the Monte Carlo radiative transfer code MCMax to do a parameter study of the QHP size and scale- height and examine the influence of quantum heating on the amount of extended flux in the NIR visibilities. There is a correlation between the PAH feature flux of a disk and the amount of its extended NIR flux. We find that very small carbonaceous grains create the observed extended NIR flux around HD 100453 and still lead to a realistic SED. These results can not be achieved without using quantum heating effects, e.g. only with scattered light and grains in thermal equilibrium. It is possible to explain the extended NIR emission around Herbig stars with the presence of carbonaceous, quantum heated particles. Interferometric observations can be used to constrain the spatial distribution and typical size of carbonaceous material in the terrestrial planet forming region.
arXiv comment10 pages, 6 figures, 2 tables, accepted for publication at A&A
References in corpus (42)
- Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
- Infrared Emission from Interstellar Dust. II. The Diffuse Interstellar Medium
- The effects of snowlines on C/O in planetary atmospheres
- Architecture and Dynamics of Kepler's Candidate Multiple Transiting Planet Systems
- Infrared Emission from Interstellar Dust. I. Stochastic Heating of Small Grains
- ISO spectroscopy of circumstellar dust in 14 Herbig Ae/Be systems: towards an understanding of dust processing
- Building Terrestrial Planets
- C/O ratio as a Dimension for Characterizing Exoplanetary Atmospheres
- The evolution of amorphous hydrocarbons in the ISM: dust modelling from a new vantage point
- Radiation thermo-chemical models of protoplanetary disks I. Hydrostatic disk structure and inner rim
- Consistent dust and gas models for protoplanetary disks. I. Disk shape, dust settling, opacities, and PAHs
- Radiative Equilibrium and Temperature Correction in Monte Carlo Radiation Transfer
- PIONIER: a 4-telescope visitor instrument at VLTI
- The inner regions of protoplanetary disks
- The warm gas atmosphere of the HD 100546 disk seen by Herschel (Evidence of a gas-rich, carbon-poor atmosphere?)
- Radiative transfer in very optically thick circumstellar disks
- ISO spectroscopy of disks around Herbig Ae/Be stars
- Imaging the Disk around TW Hya with the Submillimeter Array
- All Six Planets Known to Orbit Kepler-11 Have Low Densities
- Structure of Herbig AeBe disks at the milliarcsecond scale A statistical survey in the H band using PIONIER-VLTI
- Spitzer's view on aromatic and aliphatic hydrocarbon emission in Herbig Ae stars
- An Overview of the 2014 ALMA Long Baseline Campaign
- DIGIT survey of far-infrared lines from protoplanetary disks I
- PAH emission from Herbig AeBe stars
- Spatially extended PAHs in circumstellar disks around T Tauri and Herbig Ae stars
- PAH chemistry and IR emission from circumstellar disks
- Molecular freeze-out as a tracer of the thermal and dynamical evolution of pre- and protostellar cores
- Discovery of a Two-Armed Spiral Structure in the Gapped Disk in HD 100453
- Chemistry in an Evolving Protoplanetary Disk: Effects on Terrestrial Planet Composition
- Polycyclic aromatic hydrocarbon ionization as a tracer of gas flows through protoplanetary disk gaps
- The inner radius of T Tauri disks estimated from near-infrared interferometry: the importance of scattered light
- The Solar Nebula on Fire: A Solution to the Carbon Deficit in the Inner Solar System
- Spatially resolved PAH emission in the inner disks of Herbig Ae/Be stars
- The VLTI / PIONIER near-infrared interferometric survey of southern T Tauri stars. I. First results
- Sculpting the disk around T Cha: an interferometric view
- Infrared and Visual Interstellar Absorption Features toward Heavily- Reddened Field Stars
- What can we learn about protoplanetary disks from analysis of mid-infrared carbonaceous dust emission?
- HD 95881: A gas rich to gas poor transition disk?
- Large dust gaps in the transitional disks of HD 100453 and HD 34282
- A disk asymmetry in motion around the B[e] star MWC158
- VLTI status update: a decade of operations and beyond
- PIONIER: a status report
Cited by in corpus (15)
- Dust-trapping vortices and a potentially planet-triggered spiral wake in the pre-transitional disk of V1247 Orionis
- A family portrait of disk inner rims around Herbig Ae/Be stars: Hunting for warps, rings, self shadowing, and misalignments in the inner astronomical units
- The perturbed sublimation rim of the dust disk around the post-AGB binary IRAS08544-4431
- The essential elements of dust evolution: A viable solution to the interstellar oxygen depletion problem?
- A multi-instrument and multi-wavelength high angular resolution study of MWC614: quantum heated particles inside the disk cavity
- Nano carbon dust emission in proto-planetary disks: the aliphatic-aromatic components
- First MATISSE L-band observations of HD 179218. Is the inner 10 au region rich in carbon dust particles?
- The GRAVITY Young Stellar Object survey VIII. Gas and dust faint inner rings in the hybrid disk of HD141569
- Spatial distribution of the aromatic and aliphatic carbonaceous nano-grain features in the protoplanetary disk around HD 100546
- Spatially resolving polycyclic aromatic hydrocarbons in Herbig Ae disks with VISIR-NEAR at the VLT
- Detecting the inner regions of discs around sources of microlensing with Roman Space Telescope
- Radial distribution of the carbonaceous nano-grains in the protoplanetary disk around HD 169142
- The asymmetric structure of the inner disc around HD 142527 A with VLTI/MATISSE
- Gas chemistry in the dust depleted inner regions of protoplanetary disks. I. Near-IR spectra and overtones
- The complex inner disk of the Herbig Ae star HD 100453 with VLTI/MATISSE