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| Indexado |
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| DOI | 10.1117/12.2231782 | ||||
| Año | 2016 | ||||
| Tipo | proceedings paper |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Fighting vibrations on large telescopes is an arduous task. At Gemini, vibrations originating from cryogenic coolers have been shown to degrade the optical wavefront, in certain cases by as much as 40%. This paper discusses a general solution to vibration compensation by tracking the real time vibration state of the telescope and using M2 to apply corrections. Two approaches are then presented: an open loop compensation at M2 based on the signal of accelerometers at the M1 glass, and a closed loop compensation at M2 based on optical measurements from the wave front sensor. The paper elaborates on the pros and cons of each approach and the challenges faced during commissioning. A conclusion is presented with the final results of vibration tracking integrated with operations.
| Revista | ISSN |
|---|---|
| Proceedings Of Spie The International Society For Optical Engineering | 0277-786X |
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Rippa, Mathew J. | Hombre |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 2 | Bonnet, H. | Hombre |
ESO - Alemania
Observatorio Europeo Austral - Alemania |
| 3 | Hayward, Thomas L. | Hombre |
Observatorio Gemini - Chile
Gemini ObservatorySouthern Operations Center - Chile |
| 4 | Trujillo, Chad | Hombre |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 5 | Cavedoni, Chas P. | Hombre |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 6 | Cumming, Tom | - |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 7 | Yamasaki, Chris | Hombre |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 8 | Masuda, Neal | Hombre |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 9 | Bagano, Cy | - |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 10 | Hardash, S. | Hombre |
Observatorio Gemini - Estados Unidos
Gemini Observatory - Estados Unidos |
| 11 | Chiozzi, G | - | |
| 12 | Guzman, JC | - |
| Fuente |
|---|
| National Science Foundation |
| Comisión Nacional de Investigación Científica y Tecnológica |
| Australian Research Council |
| Ministerio de Ciencia, Tecnología e Innovación Productiva |
| National Research Council |
| Comisión Nacional de Investigación CientÃfica y Tecnológica |
| Fundação de Amparo à Pesquisa do Estado de São Paulo |
| Ministerio da Ciencia, Tecnologia e Inovacao |
| Ministero dell’Istruzione, dell’Università e della Ricerca |
| Merck Institute for Science Education |
| South African Department of Science and Technology |
| Italian Ministry of Education, University, and Research |
| Italian Ministry of Economic Development |
| Brazilian Funding Agency AF PESP |
| Agradecimiento |
|---|
| We thank the staff members of Gemini Observatory for their excellent and enthusiastic support of the many tests required for this longterm program. The Gemini Observatory is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministerio da Ciencia, Tecnologia e Inovacao (Brazil) and Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina) |
| We thank the staff members of Gemini Observatory for their excellent and enthusiastic support of the many tests required for this longterm program. The Gemini Observatory is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministerio da Ciencia, Tecnologia e Inovacao (Brazil) and Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina) |