First light from the Dome C (Antarctica) of a phase knife stellar coronagraph
18 pages, 12 figures We report on the first daytime on-sky results of a Phase Knife stellar Coronagraph operated in the visible from the French-Italian Concordia station at Dome C of Antarctica. This site has proven in the last few years to offer excellent atmospheric seeing conditions for high spat...
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ftinsu:oai:HAL:hal-02485098v1 2023-10-09T21:46:41+02:00 First light from the Dome C (Antarctica) of a phase knife stellar coronagraph Guerri, Géraldine Abe, Lyu Daban, Jean-Baptiste Aristidi, Eric Bendjoya, Philippe Rivet, Jean-Pierre Vakili, Farrokh Laboratoire Hippolyte Fizeau (FIZEAU) 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 (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS) Joseph Louis LAGRANGE (LAGRANGE) Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) 2020-02-19 https://hal.science/hal-02485098 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/0902.2326 hal-02485098 https://hal.science/hal-02485098 ARXIV: 0902.2326 https://hal.science/hal-02485098 2020 [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/preprint Preprints, Working Papers, . 2020 ftinsu 2023-09-13T16:31:11Z 18 pages, 12 figures We report on the first daytime on-sky results of a Phase Knife stellar Coronagraph operated in the visible from the French-Italian Concordia station at Dome C of Antarctica. This site has proven in the last few years to offer excellent atmospheric seeing conditions for high spatial resolution observations. The coronagraphic performances obtained from laboratory experiments and numerical models have been compared with those measured from daytime on-sky data recorded on bright single and multiple stars: Canopus (HD 45348), and alpha Centauri (HD 128620J). No correction system was used (adaptive optics or tip-tilt mirror) so that atmospheric turbulence alone defines the image quality, and thus the coronagraphic performances. Moreover, the experiment could not run under optimal operational conditions due to hardware/software problems. Satisfactory results have been obtained: broad band total rejection exceeding 15 were attained in the visible. This first day-time observation campaign yields an experimental feedback on how to improve the instrument to get optimal performances during future night-time observation runs. Report Antarc* Antarctica Institut national des sciences de l'Univers: HAL-INSU Canopus ENVELOPE(161.517,161.517,-77.550,-77.550) Concordia Station ENVELOPE(123.333,123.333,-75.100,-75.100) |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Guerri, Géraldine Abe, Lyu Daban, Jean-Baptiste Aristidi, Eric Bendjoya, Philippe Rivet, Jean-Pierre Vakili, Farrokh First light from the Dome C (Antarctica) of a phase knife stellar coronagraph |
topic_facet |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
18 pages, 12 figures We report on the first daytime on-sky results of a Phase Knife stellar Coronagraph operated in the visible from the French-Italian Concordia station at Dome C of Antarctica. This site has proven in the last few years to offer excellent atmospheric seeing conditions for high spatial resolution observations. The coronagraphic performances obtained from laboratory experiments and numerical models have been compared with those measured from daytime on-sky data recorded on bright single and multiple stars: Canopus (HD 45348), and alpha Centauri (HD 128620J). No correction system was used (adaptive optics or tip-tilt mirror) so that atmospheric turbulence alone defines the image quality, and thus the coronagraphic performances. Moreover, the experiment could not run under optimal operational conditions due to hardware/software problems. Satisfactory results have been obtained: broad band total rejection exceeding 15 were attained in the visible. This first day-time observation campaign yields an experimental feedback on how to improve the instrument to get optimal performances during future night-time observation runs. |
author2 |
Laboratoire Hippolyte Fizeau (FIZEAU) 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 (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS) Joseph Louis LAGRANGE (LAGRANGE) Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) |
format |
Report |
author |
Guerri, Géraldine Abe, Lyu Daban, Jean-Baptiste Aristidi, Eric Bendjoya, Philippe Rivet, Jean-Pierre Vakili, Farrokh |
author_facet |
Guerri, Géraldine Abe, Lyu Daban, Jean-Baptiste Aristidi, Eric Bendjoya, Philippe Rivet, Jean-Pierre Vakili, Farrokh |
author_sort |
Guerri, Géraldine |
title |
First light from the Dome C (Antarctica) of a phase knife stellar coronagraph |
title_short |
First light from the Dome C (Antarctica) of a phase knife stellar coronagraph |
title_full |
First light from the Dome C (Antarctica) of a phase knife stellar coronagraph |
title_fullStr |
First light from the Dome C (Antarctica) of a phase knife stellar coronagraph |
title_full_unstemmed |
First light from the Dome C (Antarctica) of a phase knife stellar coronagraph |
title_sort |
first light from the dome c (antarctica) of a phase knife stellar coronagraph |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02485098 |
long_lat |
ENVELOPE(161.517,161.517,-77.550,-77.550) ENVELOPE(123.333,123.333,-75.100,-75.100) |
geographic |
Canopus Concordia Station |
geographic_facet |
Canopus Concordia Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
https://hal.science/hal-02485098 2020 |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/0902.2326 hal-02485098 https://hal.science/hal-02485098 ARXIV: 0902.2326 |
_version_ |
1779309181654794240 |