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4. Contraction of the Orion Nebula cluster-molecular cloud A complex

Author

Fallon, F. W, Gerola, H, and Sofia, S

Subjects
Astrophysics
Abstract

Observational evidence is presented in support of the view that the width of the molecular lines in Orion is produced by a contraction of the cloud with a velocity directly proportional to the distance from the cloud center. The main support is provided by close agreement between the motions of the cloud and that of the stars embedded in it. A further implication of this agreement is that star formation occurred throughout the Orion cloud, rather than only in the dense center as predicted by the conventional picture of star formation. more...

Published
1977
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9. Occultation of Beta Scorpii C by Io on May 14, 1971

Author

TAYLOR, G. E., primary, O'LEARY, B., additional, VAN FLANDERN, T. C., additional, BARTHOLDI, P., additional, OWEN, F., additional, HUBBARD, W. B., additional, SMITH, B. A., additional, SMITH, S. A., additional, FALLON, F. W., additional, DEVINNEY, E. J., additional, and OLIVER, J., additional more...

Published
1971
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10. AN OBSERVED ECLIPSE OF THETA 1ORIONIS A.

Author

Caton, D. B., Fallon, F. W., and Wilson, R. E.

Abstract

Photoelectric ohservations with UBV filters were made of one descent into primary eclipse, and three runs at constant hrightness, for the recently discovered eclipsing variahle Os Ori A. They show a smaller amplitude of variation than visual estimates reported previously for the same eclipse, hut are quite similar to Lohsen's photoelectric ohservations. Key words: eclipsing h inary- light curve-Orion trapezium more...

Published
1977
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