Dispersion in nulling interferometry for exoplanet detection: experimental validation
نویسندگان
چکیده
منابع مشابه
The effect of the longitudinal polarization component in multi-axial nulling interferometry for exoplanet detection
In the past decade, exoplanet detection has drawn a lot of attention. Since the discovery of the first exoplanet by Mayor & Queloz (1995), more than two hundred planets have been detected. However, direct detection of Earth-like exoplanets remains very challenging, mainly because of the huge brightness contrast between the star and the planet (106 at 10 μm and significantly higher in the visibl...
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The detection of extra solar planets is a topic of growing interest, which stretches current technology and knowledge to their limits. Indirect measurement confirms the existence of a considerable number. However, direct imaging is the only way to obtain information about the nature of these planets and to detect Earth-like planets, which could support life. The main problem for direct imaging ...
متن کاملInstrumental stability requirements for exoplanet detection with a nulling interferometer: variability noise as a central issue.
We revisit the nulling interferometer performances that are needed for direct detection and the spectroscopic analysis of exoplanets, e.g., with the DARWIN [European Space Agency-SCI 12 (2000)] or TPF-I [JPL Publ. 05-5, (2005)] missions. Two types of requirement are found, one concerning the mean value of the instrumental nulling function (nl(lambda)) and another regarding its stability. The st...
متن کاملFresnel Rhombs as Achromatic Phase Shifters for Infrared Nulling Interferometry: First experimental results
One of the most critical units of nulling interferometers is the Achromatic Phase Shifter. The concept we propose here is based on optimized Fresnel rhombs, using the total internal reflection phenomenon, modulated or not. The total internal reflection induces a phase shift between the polarization components of the incident light. We present the principles, the current status of the prototype ...
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Context. Characterising the circumstellar dust around nearby main sequence stars is a necessary step in understanding the planetary formation process and is crucial for future life-finding space missions such as ESA’s Darwin or NASA’s Terrestrial Planet Finder (TPF). Besides paving the technological way to Darwin/TPF, the space-based infrared interferometers Pegase and FKSI (FourierKelvin Stell...
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ژورنال
عنوان ژورنال: Journal of Optics A: Pure and Applied Optics
سال: 2008
ISSN: 1464-4258,1741-3567
DOI: 10.1088/1464-4258/11/1/015510