Published November 30, 2022 | Version 1
Presentation Open

What VLT/VISIR told us about solid-carbon in protoplanetary disks

  • 1. Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, F-91191 Gif-sur-Yvette, France
  • 2. Laboratoire Lagrange, OCA, Nice, FRANCE
  • 3. IAS, Université Paris-Saclay, FRANCE
  • 4. LESIA, Observatoire Paris-Meudon, FRANCE
  • 5. Monash University, Melbourne, AUSTRALIA

Description

Protoplanetary disks are the building factories for planets.
Understanding their physical properties is a keystone to apprehend
planet formation and explain exoplanets observed diversity.
The disk around HD97048 is relatively peculiar : an exoplanet has been inferred from ALMA kinematic analysis; it displays the very rare signature of carbonaceous diamond nano-particles, and seems quite evolved as its radial strucuture shows a very wide inner cavity also as large gaps further out. It is a excellent laboratory to test the dust filtering process inferred for the formation of massive planets.  
We present a radiative model that reproduces the existing short wavelength (H/L bands) and ALMA observations. This model is then compared to existing VLT/VISIR imaging observations in order to constrain furthermore its structure and sub-um dust particles content.

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