New results on a Cn2 profiler for GeMS

被引：2

作者：

Cortes, A. ^{[1
]}

Neichel, B. ^{[2
]}

Guesalaga, A. ^{[1
]}

Osborn, J. ^{[1
]}

Rigaut, F. ^{[3
]}

Guzman, D. ^{[1
]}

机构：

[1] Pontificia Univ Catolica Chile, Alameda 340, Santiago 4860, Chile

[2] Gemini Observ, Colina el Pino S N, Serena, Chile

[3] Australian Natl Univ Res Sch Astron & Astrophys, Mt Stromlo Observ, Weston, ACT 2611, Australia

来源：

ADAPTIVE OPTICS SYSTEMS III | 2012年 / 8447卷

关键词：

C-n(2); Multi-Conjugate Adaptive Optics; Laser guide stars; Shack-Hartmann wavefront sensors; turbulence; WAVE-FRONT SENSORS; ADAPTIVE OPTICS; LARGE TELESCOPES; SLODAR;

D O I：

10.1117/12.925242

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The atmospheric optical turbulence profile, the strength of the turbulence as a function of altitude above the ground, can be used to determine the seeing statistics of a particular site. This information is useful for optimizing the tomographic process in Adaptive Optics systems and for characterizing the performance. In this paper, we describe a method to estimate the atmospheric turbulence profile based on the telemetry data coming out of GeMS, a Multi Conjugated Adaptive Optics (MCAO) instrument installed on the Gemini South telescope. The method is based on the SLODAR technique (SLOpe Detection and Ranging), where the wavefront slopes from two stars angularly separated on the sky are measured, and their cross-correlation is used to retrieve the atmospheric optical profile. We have modified the classical SLODAR method and adapted it for the closed loop, multiple laser guide stars case. In this paper we present our method, validation of it in simulation, and its application for on-sky data.

引用

页数：12

共 50 条

[1] Near ground results of the CO-SLIDAR Cn2 profiler
Robert, C.
Conan, J-M
Mugnier, L. M.
Cohard, J-M
[J]. ADAPTING TO THE ATMOSPHERE CONFERENCE 2014, 2015, 595
[2] Validation tests of the AOF Cn2 profiler
Garcia-Rissmann, A.
Guesalaga, A.
Kolb, J.
Le Louarn, M.
Madec, P. -Y.
Arsenault, R.
[J]. ADAPTIVE OPTICS SYSTEMS IV, 2014, 9148
[3] First on-sky results of the CO-SLIDAR Cn2 profiler
Voyez, Juliette
Robert, Clelia
Conan, Jean-Marc
Mugnier, Laurent M.
Samain, Etienne
Ziad, Aziz
[J]. OPTICS EXPRESS, 2014, 22 (09): : 10948 - 10967
[4] Towards an automatic system for monitoring of CN2 and wind speed profiles with GeMS
Masciadri, Elena
Neichel, Benoit
Guesalaga, Andres
Turchi, Alessio
[J]. ADAPTIVE OPTICS SYSTEMS V, 2016, 9909
[5] Validation through simulations of a Cn2 profiler for the ESO/VLT Adaptive Optics Facility
Garcia-Rissmann, A.
Guesalaga, A.
Kolb, J.
Le Louarn, M.
Madec, P. -Y.
Neichel, B.
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 448 (03) : 2594 - 2607
[6] Towards a reliability assessment of the cN2 and wind speed vertical profiles retrieved from GeMS
Neichel, Benoit
Masciadri, Elena
Guesalaga, Andres R.
Lascaux, Franck
Bechet, Clementine
[J]. ADAPTIVE OPTICS SYSTEMS IV, 2014, 9148
[7] Synthesis and thermoelastic properties of Zr(CN2)2 and Hf(CN2)2
Dolabdjian, Konstantin
Kobald, Arne
Romao, Carl P.
Meyer, Hans-Juergen
[J]. DALTON TRANSACTIONS, 2018, 47 (30) : 10249 - 10255
[8] Ba-2(CN2)(CN)(2) and Sr-2(CN2)(CN)(2) - The first mixed cyanamide cyanides
Berger, U
Milius, W
Schnick, W
[J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1995, 621 (12): : 2075 - 2082
[9] Na5[CN2]2[CN], (Li, Na)5[CN2]2[CN], and K2[CN2]: Carbodiimides from High-Pressure Synthesis
Zhang, Shiyu
Zherebtsov, Dmitry A.
DiSalvo, Francis J.
Niewa, Rainer
[J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2012, 638 (12-13): : 2111 - 2116
[10] Cn2 estimations at POLLEX
Forand, JL
Potvin, G
Dion, D
[J]. OPTICS IN ATMOSPHERIC PROPAGATION AND ADAPTIVE SYSTEMS VI, 2004, 5237 : 13 - 24

← 1 2 3 4 5 →