Coronagraphic capability for HARMONI at the E-ELT

Coronagraphic capability for HARMONI at the E-ELT
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E-ELT 上 HARMONI 的日冕功能

DOI:
10.1117/12.857378
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发表时间:
2010
期刊:
--
影响因子:
--
通讯作者:
Gladysz S
Gladysz S
中科院分区:
--
文献类型:
--
作者:
Gladysz S

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HARMONI is a proposed visible and near-infrared integral field spectrograph for the European Extremely Large Telescope. We are exploring the merits of adding a coronagraphic capability to HARMONI, specifically targeted at enabling observations of faint, nearby companions (primarily extra-solar planets) that require high contrast. Although HARMONI is not fed by extreme adaptive optics, we show that substantial contrasts can be achieved by post-processing of the hyperspectral data cube using spectral deconvolution. We make predictions of achievable contrast as a function of coronagraph design, based on realistic models of the telescope's aberrations.
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发表时间: 2006-09
期刊: The Astrophysical Journal
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