One-dimensional image reconstruction by exponential filtering in infrared stellar speckle interferometry - Application to IRC + 10216

Details One-dimensional image reconstruction by exponential filtering in infrared stellar speckle interferometry - Application to IRC + 10216 One-dimensional image reconstruction by exponential filtering in infrared stellar speckle interferometry - Application to IRC + 10216

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990josaa...7..459n&link_type=abstract

Optical Society of America, Journal, A: Optics and Image Science (ISSN 0740-3232), vol. 7, March 1990, p. 459-467. Research supp

Physics

Optics

4

Computerized Simulation, Image Reconstruction, Infrared Interferometers, Speckle Interferometry, Stellar Spectrophotometry, Algorithms, Exponential Functions, Fourier Transformation, Modulation Transfer Function

Scientific paper

Exponential filtering, together with an improved version of the iterative Fourier-transform algorithm, is applied to image reconstruction from one-dimensional infrared stellar speckle interferometry data. The only problem was an expected noisy appearance of the results when noisy data were simulated. Finally, the method was applied to observational specklegrams of the infrared source IRC + 10216, in two standard photometric bands: K and M (2.2 and 5 microns, respectively). The reconstruction in K of a north-south scan clearly shows three components inside a circumstellar shell. On the other hand, in the M band only a wing on the north side of the main component is resolvable.

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