London: Macmillan & Sons, 1967. 1st Edition. FIRST EDITION IN ORIGINAL WRAPPERS of the first tentative measurement of a CMB anisotropy, a slightly elevated temperature in the direction of a known quasar cluster. Wilkinson & Partridge’s paper presents results “which appear to set rather stringent limits on the magnitude of possible density inhomogeneities in the universe” (Wilkinson and Partridge, 1967, 719).
“The CMB radiation is a direct relic of the early universe. It is a unique and deep probe of both the thermal history of the early universe and the primordial perturbations in the matter distribution” (Tuluie, “Cosmic Microwave Background” AJ, 1996, 15). Following “the discovery of the CMB, early work focused on putting constraints on the isotropy of the radiation field: that would be an important part of establishing its cosmological origin and would put constraints on the peculiar motion of the galaxy relative to the Local Group and the Virgo Supercluster” (ibid).
Small "anistropies" (inhomogeneities in directional measurements) of temperature and polarization of the Cosmic Microwave Background radiation (CMB) allow scientists to test cosmological and astronomical theories, including cosmic inflation, the geometry of the visible universe, and the distribution of galaxy clusters. Wilkinson and Partridge’s paper, again, presents the first attempt to put experimental limits on the level of anistropy.
NOTE: We separately offer two related papers (also in original wrappers): “Fluctuations in the Primordial Fireball” by Joseph I. Silk (Nature 215 No. 5106 pp. 1155–1156, September 9, 1967) AND “Large Scale Density Inhomogeneities in the Universe” by Rees and Sciama (Nature 217 No. 5128 pp. 511-516, February 10, 1968). Item #1301
CONDITION & DETAILS: London: Macmillian & Sons. Complete issue in original wraps. Discreet ex-libris stamp on the front wrap. As is not uncommon, three neat holes near spine (for keeping given issues together) are present and do not affecting text. Evidencing no wear, this issue is also clean and bright inside and out. Very good+ condition.