On the saturation of the refractive index structure function. II - Influence of the correlation length on astronomical 'seeing'

Venkatakrishnan, P

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dc.contributor.author	Venkatakrishnan, P
dc.date.accessioned	2008-09-23T09:52:30Z
dc.date.available	2008-09-23T09:52:30Z
dc.date.issued	1987-12
dc.identifier.citation	Monthly Notices Of Royal Astronomical Society, Vol. 229, No. 3, pp. 379 - 382	en
dc.identifier.issn	0035-8711
dc.identifier.uri	http://hdl.handle.net/2248/3802
dc.description.abstract	A physical length scale in the wavefront corresponding to the parameter (r/sub0/) characterizing the loss in detail in a long exposure image is identified, and the influence of the correlation scale of turbulence as r/sub 0/ approaches this scale is shown. Allowing for the effect of 2-point correlations in the fluctuations of the refractive index, Venkatakrishnan and Chatterjee (1987) proposed a modified law for the phase structure function. It is suggested that the departure of the phase structure function from the 5/3 power law for length scales in the wavefront approaching the correlation scale of turbulence may lead to better 'seeing' at longer wavelengths.	en
dc.language.iso	en	en
dc.publisher	Royal Astronomical Society	en
dc.relation.uri	http://ads.ari.uni-heidelberg.de/abs/1987MNRAS.229..379V	en
dc.subject	Periodic variations	en
dc.subject	Refractivity	en
dc.subject	Spectral correlation	en
dc.subject	Spectral energy distribution	en
dc.subject	Stellar luminosity	en
dc.subject	Astronomical spectroscopy	en
dc.subject	Optical paths	en
dc.title	On the saturation of the refractive index structure function. II - Influence of the correlation length on astronomical 'seeing'	en
dc.type	Article	en