Physical Review Letters · 1967 · 64 citations · 6 references
Natural SciencesAstronomyPhysicsAstrophysicsRadiation DetectionX-ray AstronomyGalactic X-ray SourcesX-ray SpectroscopyCosmic-ray SpectraSource Number CountsX-ray Source PopulationsX-ray Spectra
This paper reports the results of x-ray spectrum and location measurements of several cosmic x-ray sources made on 18 May 1967. Rocket-borne proportional counters were used. The x-ray spectra of Sco XR-1, Tau XR-1, and Lup XR-1 were measured, and the location of Vel XR-1, Lup XR-1, and a new source Cen XR-3 were determined. In addition, the x-ray spectrum and location of a variable source, Cen XR-2, were obtained.
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Distribution and Variability of Cosmic X-Ray Sources
H. Friedman, E. T. Byram, T. A. Chubb · Science · 1967 · 131 citations
Natural Sciences, Astronomy, Physics +14
X-Ray Spectra from Three Cosmic Sources
R. J. Grader, R. W. Hill, F. D. Seward et al. · Science · 1966 · 56 citations
A Strong X-ray Source in the Vicinity of the Constellation Crux
J. R. Harries, K. G. McCracken, R. J. Francey et al. · Nature · 1967 · 50 citations
Natural Sciences, Astronomy, Physics +10
On the Optical Search for the X-Ray Sources CYG X-1 and CYG X-2
R. Giacconi, P. Gorenstein, H. Gursky et al. · The Astrophysical Journal · 1967 · 48 citations
Natural Sciences, Astronomy, Physics +17
X-Ray Spectra from Scorpius (SCO-XR-1) and the Sun Observed Above the Atmosphere
G. Chodil, R. C. Jopson, Hans Mark et al. · Physical Review Letters · 1965 · 45 citations
Natural Sciences, Astronomy, Physics +15