Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis
International audience Exoplanetary transit and stellar oscillation surveys require a very high precision photometry. The instrumental noise has therefore to be minimized. First, we perform a semi-analytical model of different noise sources. We show that the noise due the CCD electrodes can be overc...
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ftunivcotedazur:oai:HAL:hal-00324016v1 2024-06-23T07:47:48+00:00 Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis Crouzet, Nicolas Guillot, Tristan Fressin, Francois Blazit, Alain Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Gemini (LG) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Laboratoire Hippolyte Fizeau (FIZEAU) 2007-09-18 https://hal.science/hal-00324016 https://hal.science/hal-00324016/document https://hal.science/hal-00324016/file/ProceedingBudapest.pdf en eng HAL CCSD Wiley-VCH Verlag info:eu-repo/semantics/altIdentifier/arxiv/0809.4255 hal-00324016 https://hal.science/hal-00324016 https://hal.science/hal-00324016/document https://hal.science/hal-00324016/file/ProceedingBudapest.pdf ARXIV: 0809.4255 info:eu-repo/semantics/OpenAccess ISSN: 0004-6337 EISSN: 1521-3994 Astronomical Notes / Astronomische Nachrichten https://hal.science/hal-00324016 Astronomical Notes / Astronomische Nachrichten, 2007, 328 (8), pp.805 - 808 [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] info:eu-repo/semantics/article Journal articles 2007 ftunivcotedazur 2024-06-03T14:17:48Z International audience Exoplanetary transit and stellar oscillation surveys require a very high precision photometry. The instrumental noise has therefore to be minimized. First, we perform a semi-analytical model of different noise sources. We show that the noise due the CCD electrodes can be overcome using a Gaussian PSF (Point Spread Function) of full width half maximum larger than 1.6 pixels. We also find that for a PSF size of a few pixels, the photometric aperture has to be at least 2.5 times larger than the PSF full width half maximum. Then, we compare a front- with a back-illuminated CCD through a Monte-Carlo simulation. Both cameras give the same results for a PSF full width half maximum larger than 1.5 pixels. All these simulations are applied to the A STEP (Antarctica Search for Transiting Extrasolar Planets) project. As a result, we choose a front-illuminated camera for A STEP because of its better resolution and lower price, and we will use a PSF larger than 1.6 pixels. Article in Journal/Newspaper Antarc* Antarctica HAL Université Côte d'Azur |
institution |
Open Polar |
collection |
HAL Université Côte d'Azur |
op_collection_id |
ftunivcotedazur |
language |
English |
topic |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] |
spellingShingle |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] Crouzet, Nicolas Guillot, Tristan Fressin, Francois Blazit, Alain Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis |
topic_facet |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] |
description |
International audience Exoplanetary transit and stellar oscillation surveys require a very high precision photometry. The instrumental noise has therefore to be minimized. First, we perform a semi-analytical model of different noise sources. We show that the noise due the CCD electrodes can be overcome using a Gaussian PSF (Point Spread Function) of full width half maximum larger than 1.6 pixels. We also find that for a PSF size of a few pixels, the photometric aperture has to be at least 2.5 times larger than the PSF full width half maximum. Then, we compare a front- with a back-illuminated CCD through a Monte-Carlo simulation. Both cameras give the same results for a PSF full width half maximum larger than 1.5 pixels. All these simulations are applied to the A STEP (Antarctica Search for Transiting Extrasolar Planets) project. As a result, we choose a front-illuminated camera for A STEP because of its better resolution and lower price, and we will use a PSF larger than 1.6 pixels. |
author2 |
Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Université Côte d'Azur (UniCA)-Université Côte d'Azur (UniCA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire Gemini (LG) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur Laboratoire Hippolyte Fizeau (FIZEAU) |
format |
Article in Journal/Newspaper |
author |
Crouzet, Nicolas Guillot, Tristan Fressin, Francois Blazit, Alain |
author_facet |
Crouzet, Nicolas Guillot, Tristan Fressin, Francois Blazit, Alain |
author_sort |
Crouzet, Nicolas |
title |
Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis |
title_short |
Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis |
title_full |
Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis |
title_fullStr |
Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis |
title_full_unstemmed |
Front- vs. back-illuminated CCD cameras for photometric surveys: a noise budget analysis |
title_sort |
front- vs. back-illuminated ccd cameras for photometric surveys: a noise budget analysis |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00324016 https://hal.science/hal-00324016/document https://hal.science/hal-00324016/file/ProceedingBudapest.pdf |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 0004-6337 EISSN: 1521-3994 Astronomical Notes / Astronomische Nachrichten https://hal.science/hal-00324016 Astronomical Notes / Astronomische Nachrichten, 2007, 328 (8), pp.805 - 808 |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/0809.4255 hal-00324016 https://hal.science/hal-00324016 https://hal.science/hal-00324016/document https://hal.science/hal-00324016/file/ProceedingBudapest.pdf ARXIV: 0809.4255 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1802637982769872896 |