Autocorrelation function of microlensed radio emission

Details Autocorrelation function of microlensed radio emission Autocorrelation function of microlensed radio emission

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999astl...25..793z&link_type=abstract

Astronomy Letters, Volume 25, Issue 12, December 1999, pp.793-796

Astronomy and Astrophysics

Astronomy

Scientific paper

The autocorrelation function (AF) of a radio signal emitted by a large source and microlensed by a tenuous distribution of intervening point masses is analyzed. The contribution of microlensing to the "interference" component of the AF at wavelength 3 x 10^5 (M / M_solar) cm is found to be on the order of the microlensing optical depth, sigma. Extrapolation of the results to sigma values on the order of unity shows that the density of low-mass objects in the lenticular galaxies Q0957+561 and H1413+117 can be estimated from observations.

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