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• W2073034720 abstract "view Abstract Citations (16) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS W. F. Meyer's Work on Beta Canis Majoris. Struve, Otto Abstract Table 1 lists the radial velocities of Canis Major is from 698 three-prism plates obtained with the Mills spectrograph of the Lick Observatory between 1904 and 1948. The star's radial- is characterized by three periods. P1 = 0.25002246 day and K2 = 5.8 km/sec were constant over the entire interval. P2 varied from 0.2513015 to 0.2513003 day, with a corresponding change in K2 from 4.2 to 2.0 km/sec. This variable period represents the variation in the contours of the absorption lines. Finally, P2, the beat period of P1 and P2, varied from 49.09 to 49.17 days. This latter variation is probably accounted for by the variation of P2. There is no entirely satisfactory explanation of the variation in radial velocity, but the behavior of all stars of the Cephei class differs so markedly from that of the cluster-type variables that pulsations alone are probably not sufficient. It is therefore suggested that we return, tentatively, to the consideration of a close binary whose invisible satellite is very small and dense. Perhaps P1 represents the orbital period of this satellite, while P2 may correspond to a pulsation induced by the satellite in the atmosphere of the principal star. If very close binaries exist, one component of which is a normal star while the other is an object related to the white dwarfs, we should probably look for them among the p Cephei objects. Among the known spectroscopic binaries there are no other possible candidates. It would therefore be important to consider theoretically whether such systems could exist without disruption. Publication: The Astrophysical Journal Pub Date: November 1950 DOI: 10.1086/145365 Bibcode: 1950ApJ...112..520S full text sources ADS | data products SIMBAD (3)" @default.
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• W2073034720 date "1950-11-01" @default.
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• W2073034720 title "W. F. Meyer's Work on Beta Canis Majoris." @default.
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