Home
About
Program
and Events
Post-Meeting
Publications
Gallery
Registration
Abstract
Submission
Location and Accommodation
Travel Info
Presenter
Resources
Science Oversight
Committee
Student/Travel
Support
Sponsors and Contributors
Contact
Us
MKWC
Home
Abstract Review

Corresponding Author
Name
Andrei Tokovinin
Authors
NameAffiliation
Marc Sarazin ESO
Alain Smette ESO
Abstract
Session3 (Approaches for modeling atmospheric optical turbulence.)
Title'Testing turbulence model at metric scales with mid-infrared VISIR '
AbstractThe wave-front coherence length r_0 reaches metric values at
mid-infrared wavelengths, hence long-exposure images can probe the
large-scale spatial structure of turbulence directly in a
model-independent way. We obtained simultaneous mid-IR and optical
images of a point source at the VLT using the VISIR instrument and the
Shack-Hartmann sensor. The analysis shows that the departure of the
phase structure function from a pure Kolmogorov model is very strong
and can be adequately represented by the von Karman model with
decametric outer scale. Various instrumental effects influencing the
results are discussed.


Return to Program and Events

Updated on: Wed, Dec 17 2014 - 1849 UTC
Send comments to: MKWC Staff