On the Possibility of Determining Hubble's Parameter and the Masses of Galaxies from the Gravitational Lens Effect
Sep 1, 19644 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 128 (1964) 4, 307-310
- Published: Sep 1, 1964
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Abstract: (Oxford University Press)
The gravitational lens effect is applied to a supernova lying far behind and close to the line of sight through a distant galaxy. The light from the supernova may follow two different paths to the observer, and the difference Δ t in the time of light travel for these two paths can amount to a couple of months or more, and may be measurable. It is shown that Hubble's parameter and the mass of the galaxy can be expressed by Δ t , the red-shifts of the supernova and the galaxy, the luminosities of the supernova “images” and the angle between them. The possibility of observing the phenomenon is discussed.References(0)
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