Skip to Main content Skip to Navigation
Journal articles

Prospects for the characterisation of exo-zodiacal dust with the VLTI

Abstract : Exo-zodiacal dust, exozodi for short, is warm (∼300 K) or hot (up to ∼2000 K) dust found in the inner regions of planetary systems around main sequence stars. In analogy to our own zodiacal dust, it may be located in or near the habitable zone or closer in, down to the dust sublimation distance. The study of the properties, distribution, and evolution of exozodis can inform about the architecture and dynamics of the innermost regions of planetary systems, close to their habitable zones. On the other hand, the presence of large amounts of exo-zodiacal dust may be an obstacle for future space missions aiming to image Earth-like exoplanets. The dust can be the most luminous component of extrasolar planetary systems, but predominantly emits in the near- to mid-infrared where it is outshone by the host star. Interferometry provides a unique method of separating the dusty from the stellar emission. We discuss the prospects of exozodi observations with the next generation VLTI instruments and summarize critical instrument specifications.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03693517
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Friday, June 10, 2022 - 3:28:49 PM
Last modification on : Monday, June 27, 2022 - 1:10:23 PM

Links full text

Identifiers

Collections

Citation

S. Ertel, O. Absil, D. Defrère, J. -C. Augereau, B. Mennesson. Prospects for the characterisation of exo-zodiacal dust with the VLTI. Experimental Astronomy, Springer Link, 2018, 46, pp.401-411. ⟨10.1007/s10686-018-9600-7⟩. ⟨insu-03693517⟩

Share

Metrics

Record views

1