Article (Scientific journals)
Prospects for the characterisation of exo-zodiacal dust with the VLTI
Ertel, S.; Absil, Olivier; Defrere, Denis et al.
2018In Experimental Astronomy, 46 (3), p. 401–411
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This is a post-peer-review, pre-copyedit version of an article published in Experimental Astronomy. The final authenticated version is available online at: https://doi.org/10.1007/s10686-018-9600-7


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Keywords :
Circumstellar matter; Exo-zodiacal dust; Interferometry; Planetary systems
Abstract :
[en] 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. © 2018, Springer Nature B.V.
Research center :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Ertel, S.;  Steward Observatory, Department of Astronomy, University of Arizona, 993 N. Cherry Ave, Tucson, AZ 85721, United States
Absil, Olivier  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > ISSPSILAB
Defrere, Denis ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > ISSPSILAB
Augereau, J.-C.;  Université Grenoble Alpes, IPAG, Grenoble, 38000, France, CNRS, IPAG, Grenoble, 38000, France
Mennesson, B.;  Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, United States
Language :
English
Title :
Prospects for the characterisation of exo-zodiacal dust with the VLTI
Publication date :
14 August 2018
Journal title :
Experimental Astronomy
ISSN :
0922-6435
eISSN :
1572-9508
Publisher :
Kluwer Academic Publishers, Netherlands
Special issue title :
Future of Optical-infrared Interferometry in Europe
Volume :
46
Issue :
3
Pages :
401–411
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 October 2018

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