 |
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|
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|
|
|
|
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| * |
Most of the
early rocket and satellite
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|
|
observations of
X-ray binary sources
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|
concentrated on
timing studies. The
|
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|
proportional
counters had a limited
|
|
|
number of pulse
height channels
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suitable for
spectral analysis.
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| * |
Experiment C on
Ariel V was designed
|
|
to provided
detailed X-ray spectra.
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| * |
Cyg X-3 is a
highly variable bright
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|
source with a 4.8
hr. period.
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|
| * |
The Ariel V
observation confirmed an
|
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|
earlier rocket
detection of narrow Fe K
|
|
|
emission,
modulated with the
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|
continuum. The EW is ~ 0.33 keV.
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| * |
No other
features were detected. This
|
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|
was ascribed to
the high fluorescence
|
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|
yield of iron.
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