Measurement of telescope transmission using a Collimated Beam Projector
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2022
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| _version_ | 1866914851199123456 |
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| author | Souverin, Thierry Neveu, Jérémy Betoule, Marc Bongard, Sébastien Brownsberger, Sasha Cohen-Tanugi, Johann Dagoret-Campagne, Sylvie Feinstein, Fabrice Juramy, Claire Guillou, Laurent Le Van Suu, Auguste Le Blanc, Pierre Eric Hazenberg, François Nuss, Eric Plez, Bertrand Sepulveda, Eduardo Sommer, Kélian Stubbs, Christopher Regnault, Nicolas Urbach, Elana |
| author_facet | Souverin, Thierry Neveu, Jérémy Betoule, Marc Bongard, Sébastien Brownsberger, Sasha Cohen-Tanugi, Johann Dagoret-Campagne, Sylvie Feinstein, Fabrice Juramy, Claire Guillou, Laurent Le Van Suu, Auguste Le Blanc, Pierre Eric Hazenberg, François Nuss, Eric Plez, Bertrand Sepulveda, Eduardo Sommer, Kélian Stubbs, Christopher Regnault, Nicolas Urbach, Elana |
| contents | The number of type Ia supernova observations will see a significant growth within the next decade, especially thanks to the Legacy Survey of Space and Time undertaken by the Vera Rubin Observatory in Chile. With this rise, the statistical uncertainties will decrease and the flux calibration will become the main uncertainty for the characterization of dark energy. The uncertainty over the telescope transmission is a major systematic when measuring SNe Ia colors. Here we introduce the Collimated Beam Projector (CBP), a device that can measure the transmission of a telescope and its filters. Composed of a tunable monochromatic light source and optics to provide a parallel output beam this device is able to measure with high precision the filter transmissions. In the following, we will show how measuring precisely a telescope transmission can also improve the precision of the dark energy parameters. As an example, we will present the first results of the CBP in the context of the StarDice experiment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2206_07530 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Measurement of telescope transmission using a Collimated Beam Projector Souverin, Thierry Neveu, Jérémy Betoule, Marc Bongard, Sébastien Brownsberger, Sasha Cohen-Tanugi, Johann Dagoret-Campagne, Sylvie Feinstein, Fabrice Juramy, Claire Guillou, Laurent Le Van Suu, Auguste Le Blanc, Pierre Eric Hazenberg, François Nuss, Eric Plez, Bertrand Sepulveda, Eduardo Sommer, Kélian Stubbs, Christopher Regnault, Nicolas Urbach, Elana Instrumentation and Methods for Astrophysics The number of type Ia supernova observations will see a significant growth within the next decade, especially thanks to the Legacy Survey of Space and Time undertaken by the Vera Rubin Observatory in Chile. With this rise, the statistical uncertainties will decrease and the flux calibration will become the main uncertainty for the characterization of dark energy. The uncertainty over the telescope transmission is a major systematic when measuring SNe Ia colors. Here we introduce the Collimated Beam Projector (CBP), a device that can measure the transmission of a telescope and its filters. Composed of a tunable monochromatic light source and optics to provide a parallel output beam this device is able to measure with high precision the filter transmissions. In the following, we will show how measuring precisely a telescope transmission can also improve the precision of the dark energy parameters. As an example, we will present the first results of the CBP in the context of the StarDice experiment. |
| title | Measurement of telescope transmission using a Collimated Beam Projector |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2206.07530 |