G
George W. Clark
Researcher at Massachusetts Institute of Technology
Publications - 123
Citations - 4014
George W. Clark is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: X-ray astronomy & Cosmic ray. The author has an hindex of 34, co-authored 123 publications receiving 3876 citations.
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Journal ArticleDOI
The Einstein /HEAO 2/ X-ray Observatory
Riccardo Giacconi,G. Branduardi,Ulrich G. Briel,A. Epstein,Daniel G. Fabricant,E. D. Feigelson,William R. Forman,Paul Gorenstein,J. E. Grindlay,H. Gursky,F. R. Harnden,J. P. Henry,C. Jones,E. M. Kellogg,D. Koch,S. S. Murray,Ethan J. Schreier,F. D. Seward,Harvey Tananbaum,K. Topka,L. van Speybroeck,Stephen S. Holt,Robert H. Becker,Elihu Boldt,Peter J. Serlemitsos,George W. Clark,Claude R. Canizares,Thomas H. Markert,Robert Novick,D. J. Helfand,Knox S. Long +30 more
TL;DR: The Einstein X-ray Observatory (HEAO 2) as mentioned in this paper is a fully imaging focusing Xray telescope with an angular resolution of a few arc sec, a field of view of up to one deg, and a sensitivity several hundred times greater than previously available in any Xray astronomy experiment.
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X-ray binaries in globular clusters
TL;DR: It appears to be very unlikely that primordial binaries in globular clusters have evolved to produce high-luminosity X-ray sources like the four variable sources detected by the Uhuru and OSO-7 satellites as mentioned in this paper.
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High-energy cosmic gamma-ray observations from the OSO-3 satellite.
Journal ArticleDOI
Observations of the highly variable X-ray source GX 339-4.
Thomas H. Markert,Claude R. Canizares,George W. Clark,Walter H. G. Lewin,H. W. Schnopper,G. F. Sprott +5 more
TL;DR: In this article, an X-ray source, GX 339-4, which varies in intensity by at least a factor of 60 over hundreds of days but shows no evidence of periodic behavior or abrupt intensity changes on time scales from 3 minutes to 13 days.
Journal ArticleDOI
Observation of high-energy cosmic gamma rays.
TL;DR: High energy cosmic gamma radiation coincident with galactic plane observed by detector on OSO 3 was detected in this article, where the galactic plane was assumed to be a Gaussian cloud.