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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 16 — Aug. 15, 2009
  • pp: 2432–2434

Method to reconstruct exoplanetary spectrum

N. Zubko, N. Baba, H. Shibuya, and N. Murakami  »View Author Affiliations


Optics Letters, Vol. 34, Issue 16, pp. 2432-2434 (2009)
http://dx.doi.org/10.1364/OL.34.002432


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Abstract

We present a method for spectroscopic observations of exoplanets. Coronagraphic image of a star-planet system and its objective spectra are observed simultaneously. Stellar image and objective spectrum without coronagraphic suppression are also obtained as reference. By convolution of the coronagraphic image with the reference stellar spectrum, pseudo-objective spectra are synthesized. The difference between the observed and the synthesized pseudospectra reveals the distinctive features of planetary spectrum. We carry out laboratory demonstration of the proposed technique and show that the planetary spectrum is reconstructed.

© 2009 Optical Society of America

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6480) Spectroscopy : Spectroscopy, speckle
(350.1260) Other areas of optics : Astronomical optics
(350.1270) Other areas of optics : Astronomy and astrophysics

ToC Category:
Spectroscopy

History
Original Manuscript: April 3, 2009
Revised Manuscript: June 4, 2009
Manuscript Accepted: June 18, 2009
Published: August 7, 2009

Citation
N. Zubko, N. Baba, H. Shibuya, and N. Murakami, "Method to reconstruct exoplanetary spectrum," Opt. Lett. 34, 2432-2434 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-16-2432


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References

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