This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ... system. A second hypothesis for explaining the variation of stars of this type is that of a resisting medium in which the binary system is supposed to be enveloped, and the impact of whose particles causes the star's advancing side to become heated. This idea was first published by Dr. R. H. Curtiss2 and has been ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 Excerpt: ... system. A second hypothesis for explaining the variation of stars of this type is that of a resisting medium in which the binary system is supposed to be enveloped, and the impact of whose particles causes the star's advancing side to become heated. This idea was first published by Dr. R. H. Curtiss2 and has been somewhat elaborated upon by Professor F. H. Loud.22 The impact of the particles of a resisting medium of nebulous or meteoric matter might cause variation in a star's light in two ways: first, as the star revolved in its orbit, if it moved at different times with different speed or through portions of the medium having different densities, there would result a difference in the actual rate of emission of light; second, if the star moved like the Moon, keeping always the same face towards its dark companion, the preceding face would, by the impact of particles, be kept constantly hotter than the following side, and, as the star rotated, first the darker and then the brighter side would be presented to the observer. The hypothesis of a resisting medium has many things in its favor, but chiefly the fact that it accounts for the synchronism of maximum light and minimum positive velocity. That the variation of the star's light can be accounted for by a change in the rate of light emission is rendered improbable by the following facts: 1. In order that the actual emission of light may vary, the star must cool perceptibly during the few days which elapse between successive passages through those parts of the orbit where the bombardment is most fierce. This 2i Lick Observatory Bulletins, 3, 40, 1904; and Astrophysical Journal, 20, 186, 1904. 22 Astrophysical Journal, 26, 369, 1907. would necessitate that the disturbance take place only in the outer and ra...
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Add this copy of Lick Observatory Bulletins; Volume 5 to cart. $44.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2018 by Palala Press.
Add this copy of Lick Observatory Bulletins; Volume 5 to cart. $45.62, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2018 by Palala Press.
