Browsing Publications of Astronomical Society of India by Subject "Opacity"

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220 GHz tipping radiometer for monitoring atmospheric opacity at Hanle

Ananthasubramanian, P. G; Yamamoto, S; Prabhu, T. P (Astronomical Society of India, 2001)

In this poster presentation, we describe the working principle, data acquisition method and data reduction scheme of a 220 GHz tipping radiometer. We also present the preliminary 220 GHz zenith optical depth results at Mt. ...
On the accuracy of opacity interpolation schemes

Houdek, G; Rogl, J (Astronomical Society of India, 1996)

We have investigated some of the properties and consequences of interpolation in opacity tables. In particular, we were interested in the estimate of the maximum interpolation errors, where they occur in the tables, and ...
Testing the helioseismic determination of opacity corrections

Tripathy, S. C; Christensen-Dalsgaard, J (Astronomical Society of India, 1998)

We investigate the effect of localized opacity modifications on the sound-speed profile of solar models. The sound-speed difference between the Sun and a solar model is used to deduce the opacity correction that would be ...

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