1.

Record Nr.

UNINA9910455606003321

Titolo

Optical turbulence [[electronic resource] ] : astronomy meets meteorology : proceedings of the Optical Turbulence Characterization for Astronomical Applications, Sardinia, Italy, 15-18 September 2008 / / editors, Elena Masciadri, Marc Sarazin

Pubbl/distr/stampa

London, : Imperial College Press

Singapore ; ; Hackensack, N.J., : Distributed by World Scientific Pub, c2009

ISBN

1-282-76007-6

9786612760075

1-84816-486-6

Descrizione fisica

1 online resource (415 p.)

Altri autori (Persone)

MasciadriElena

SarazinMarc

Disciplina

535.2

Soggetti

Atmospheric turbulence

Meteorological optics

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

CONTENTS; Preface; Motivations; Conference Results; Conference Group Picture; Organizers; In Memory of A. Erasmus; Scientific Program; Optical Turbulence in High Angular Resolution Techniques in Astronomy J . M. Beckers; 1. Introduction; 2.1. Average Atmosphere; 2.2. The Turbulent Atmosphere; 2.3. Optical Turbulence under Special Conditions; 3. Adaptive Optics; 3.1. Wavefront Sensing; 3.2. Laser Beacons or Guide Stars; 3.3. Multi-Conjugate Adaptive Optics; 4. Astronomical Interferometry; 5. Conclusion; References; An Astronomer's View of Optical Turbulence  R. Racine; 1. Introduction

2. Refractive Properties of the Turbulent Atmosphere2. Futility; 3. Utility and Challenges; 3.1. Large and Rapid Variability with Time; 3.2. Difference between Sub-Sites; 3.3. "Facility Seeing"; 4. Dreams; 5. Confronting Reality; Acknowledgments; References; Using the Scintillation of Extended Objects to Probe the Lower Atmosphere  J. M.



Beckers; Synopsis; References; Optical Turbulence Profiles at CTIO from a 12-element Lunar Scintillometer  P. Hickson, T. Pfrommer and A. P. Crotts; 1. Introduction; 2. Observations; 3. Analysis; 4. Results; Acknowledgments; References

HVR-GS at Mt. Graham: Optical Turbulence Vertical Distribution with Standard and High Resolution  E. Masciadri, J. Stoesz, F. Lascaux and S. Hagelin1. Optical Turbulence Characterization at Mt. Graham: Scientific Motivations; 2. GS and HVR-GS Techniques; 3. Astroclimatic Parameters: Main Results; 4. AO Applications: LBT-LGS System ARGOS; 5. HVR-GS Vertical Distribution for h  1 km; 6. Conclusions; Acknowledgments; References; Profilometry for the Lower Terrestrial Atmosphere J. Borgnino, A. Berdja, A. Ziad and J. Maire; 1. Introduction

2. Wavefront Analysis : Observation of AA Fluctuations in the Pupil Plane173. AA Statistics; 3.1. Transverse Spatial Covariance of AA Fluctuations; 3.2. Transverse Spatio-Angular Covariance of AA Fluctuations; 4. Optical Turbulence Profiler; 4.1. Principle; 4.2. A Differential Profiler; 5. Conclusion; References; SLODAR Turbulence Monitors R. W. Wilson, T. Butterley and J. Osborn; 1. Introduction; 2. Current SLODAR Profilers; 3. Sample Results; 3.1. Cerro Paranal; 3.2. Mauna Kea; 4. Comparison with MASS and DIMM; 5. Summary and the Future; Acknowledgments; References

High Resolution SLODAR Measurements on Mauna Kea T. Butterley, R. W. Wilson, M. R. Chun, R. Avila and J.-L. Aviles1. Introduction; 2. SLODAR Instrument; 3. Data Analysis; 4. Results; 5. Conclusion; Acknowledgements; References; Vertical Turbulence Profiles at Canary Islands Astronomical Sites B. Garcia-Lorenzo, J. J. Fuensalida, J. Castro-Almazan and M. A. C. Rodriguez-Hernandez; 1. Introduction; 2. The Instruments; 3. Observations and Data; 4. Statistical View of the Seasonal Evolution of the Turbulence; 5. Summary and Conclusions; Acknowledgments; References

C2n Profile from Shack-Hartmann Data: First Steps for Co-slidar Data Processing C. Robert, N. V     edrenne, V. Michau and J.-M. Conan

Sommario/riassunto

This book collects most of the talks and poster presentations presented at the ""Optical Turbulence - Astronomy meets Meteorology"" international conference held on 15-18 September, 2008 at Nymphes Bay, Alghero, Sardinia, Italy. The meeting aimed to deal with one of the major causes of wavefront perturbations limiting the astronomical high-angular-resolution observations from the ground. The uniqueness of this meeting has been the effort to attack this topic in a synergic and multidisciplinary approach promoting constructive discussions between the actors of this science - the astronomers, me



2.

Record Nr.

UNICAMPANIAVAN0047304

Titolo

Corpus des inscriptions de Delphes

Pubbl/distr/stampa

v. ; 33 cm

Edizione

[Paris : diffusion De Boccard]

Descrizione fisica

In testa al front.: École française d'athénes.

Soggetti

ISCRIZIONI GRECHE - Delfi

Lingua di pubblicazione

Italiano

Formato

Materiale a stampa

Livello bibliografico

Monografia