First light from the Dome C (Antarctica) of a phase knife stellar coronagraph

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 observ...

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Main Authors: Guerri, Geraldine, Abe, Lyu, Daban, Jean-Baptiste, Aristidi, Eric, Bendjoya, Philippe, Rivet, Jean-Pierre, Vakili, Farrokh
Format: Report
Language:unknown
Published: arXiv 2009
Subjects:
Instrumentation and Methods for Astrophysics astro-ph.IM
FOS Physical sciences
Canopus
Concordia Station
Antarc*
Antarctica
Online Access:https://dx.doi.org/10.48550/arxiv.0902.2326
https://arxiv.org/abs/0902.2326
id ftdatacite:10.48550/arxiv.0902.2326
record_format openpolar
spelling ftdatacite:10.48550/arxiv.0902.2326 2023-05-15T13:51:26+02:00 First light from the Dome C (Antarctica) of a phase knife stellar coronagraph Guerri, Geraldine Abe, Lyu Daban, Jean-Baptiste Aristidi, Eric Bendjoya, Philippe Rivet, Jean-Pierre Vakili, Farrokh 2009 https://dx.doi.org/10.48550/arxiv.0902.2326 https://arxiv.org/abs/0902.2326 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Instrumentation and Methods for Astrophysics astro-ph.IM FOS Physical sciences Preprint Article article CreativeWork 2009 ftdatacite https://doi.org/10.48550/arxiv.0902.2326 2022-04-01T15:05:49Z 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. : 18 pages, 12 figures Report Antarc* Antarctica DataCite Metadata Store (German National Library of Science and Technology) 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 DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Instrumentation and Methods for Astrophysics astro-ph.IM
FOS Physical sciences
spellingShingle Instrumentation and Methods for Astrophysics astro-ph.IM
FOS Physical sciences
Guerri, Geraldine
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 Instrumentation and Methods for Astrophysics astro-ph.IM
FOS Physical sciences
description 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. : 18 pages, 12 figures
format Report
author Guerri, Geraldine
Abe, Lyu
Daban, Jean-Baptiste
Aristidi, Eric
Bendjoya, Philippe
Rivet, Jean-Pierre
Vakili, Farrokh
author_facet Guerri, Geraldine
Abe, Lyu
Daban, Jean-Baptiste
Aristidi, Eric
Bendjoya, Philippe
Rivet, Jean-Pierre
Vakili, Farrokh
author_sort Guerri, Geraldine
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 arXiv
publishDate 2009
url https://dx.doi.org/10.48550/arxiv.0902.2326
https://arxiv.org/abs/0902.2326
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_rights arXiv.org perpetual, non-exclusive license
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
op_doi https://doi.org/10.48550/arxiv.0902.2326
_version_ 1766255307727568896

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