2013/02/22 by Jeremy S. Heyl, Heyl, Jeremy S.
Physics and Astronomy · #Astrophysics of Galaxies (astro-ph.GA) #Earth and Planetary Astrophysics (astro-ph.EP) #FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #astro-ph.EP #astro-ph.GA #astro-ph.IM
paper · pdf · doi:10.48550/arxiv.1302.5717
3 pages, 2 figurs, submission for the Proceedings of the Thirteenth Marcel Grossman Meeting on General Relativity edited by Kjell Rosquist, Robert T Jantzen, Remo Ruffini World Scientific, Singapore, 2013
arxiv created 2013/02/22 · arxiv updated 2013/02/26
Diffraction is important when nearby substellar objects gravitationally lens distant stars. If the wavelength of the observation is comparable to the Schwarzschild radius of lensing object, diffraction leaves an observable imprint on the lensing signature. The SKA may have sufficient sensitivity to detect the typical sources, giant stars in the bulge. The diffractive signatures in a lensing event break the degeneracies between the mass of the lens, its distance and proper motion.