Off-Axis Exact Ray Tracing Algorithm for Zero Coma Point Determination in Classical and Non-Classical Reflective Telescopes
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2022
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| _version_ | 1876486015872401408 |
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| author | J. Herrera |
| author_facet | J. Herrera |
| contents | Off-Axis Exact Ray Tracing Algorithm for Zero Coma Point Determination in Classical and Non-Classical Reflective Telescopes J. Herrera M. R. Najera C. A. Guerrero Física, Astronomía y Matemáticas telescopes methods: numerical methods: analytical methods: data analysis Instrumentation: miscellaneous In this work we present a general algorithm to calculate the zero coma point for classical and non-classical reflecting telescopes with aspherical surfaces. We programmed a general ray tracing function applicable to conical surfaces with asphericity, displacements, and inclinations that can be modified by the users, according to their specifications. This function is used to evaluate the transverse coma and determine the optimal conjunction of shift and tilt of the secondary mirror that prevents the introduction of axial coma during the collimation process. We present the calculation of the zero coma point for the classical telescopes of the National Astronomical Observatory, San Pedro Mártir, Mexico. Furthermore, we show an example of a wide-field telescope with aspherical surfaces, as will be the case of the TAOS-II telescopes, for which the classical analytical expression cannot be used. 2022 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57175492003 https://www.redalyc.org/journal/571/57175492003/ https://www.redalyc.org/journal/571/57175492003/html/ https://www.redalyc.org/journal/571/57175492003/57175492003.epub https://www.redalyc.org/journal/571/57175492003/movil 10.22201/ia.01851101p.2022.58.01.03 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.1 Vol.58 |
| format | Artículo científico |
| id | redalyc_57175492003 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Off-Axis Exact Ray Tracing Algorithm for Zero Coma Point Determination in Classical and Non-Classical Reflective Telescopes J. Herrera Física, Astronomía y Matemáticas telescopes methods: numerical methods: analytical methods: data analysis Instrumentation: miscellaneous Off-Axis Exact Ray Tracing Algorithm for Zero Coma Point Determination in Classical and Non-Classical Reflective Telescopes J. Herrera M. R. Najera C. A. Guerrero Física, Astronomía y Matemáticas telescopes methods: numerical methods: analytical methods: data analysis Instrumentation: miscellaneous In this work we present a general algorithm to calculate the zero coma point for classical and non-classical reflecting telescopes with aspherical surfaces. We programmed a general ray tracing function applicable to conical surfaces with asphericity, displacements, and inclinations that can be modified by the users, according to their specifications. This function is used to evaluate the transverse coma and determine the optimal conjunction of shift and tilt of the secondary mirror that prevents the introduction of axial coma during the collimation process. We present the calculation of the zero coma point for the classical telescopes of the National Astronomical Observatory, San Pedro Mártir, Mexico. Furthermore, we show an example of a wide-field telescope with aspherical surfaces, as will be the case of the TAOS-II telescopes, for which the classical analytical expression cannot be used. 2022 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57175492003 https://www.redalyc.org/journal/571/57175492003/ https://www.redalyc.org/journal/571/57175492003/html/ https://www.redalyc.org/journal/571/57175492003/57175492003.epub https://www.redalyc.org/journal/571/57175492003/movil 10.22201/ia.01851101p.2022.58.01.03 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.1 Vol.58 |
| title | Off-Axis Exact Ray Tracing Algorithm for Zero Coma Point Determination in Classical and Non-Classical Reflective Telescopes |
| topic | Física, Astronomía y Matemáticas telescopes methods: numerical methods: analytical methods: data analysis Instrumentation: miscellaneous |
| url | https://www.redalyc.org/articulo.oa?id=57175492003 https://www.redalyc.org/journal/571/57175492003/ https://www.redalyc.org/journal/571/57175492003/html/ https://www.redalyc.org/journal/571/57175492003/57175492003.epub https://www.redalyc.org/journal/571/57175492003/movil |