 |
|
|
|
|
|
|
|
|
|
|
|
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|
| * |
The first
moderate spectral
|
|
|
|
resolution
observations of early-
|
|
|
type stars were
performed with the
|
|
|
|
Solid State
Spectrometer on
|
|
|
Einstein,
but a problem with ice
|
|
|
|
buildup on those
detectors reduced
|
|
|
their
effectiveness for soft sources.
|
|
|
| * |
The Broad-Band
X-Ray Telescope,
|
|
flown in 1990 on
the Shuttle
|
|
|
|
obtained somewhat
better data.
|
|
|
| * |
The spectra of z Puppis, were used
|
|
|
to infer the
existence of ionized
|
|
|
|
oxygen
absorption intrinsinc to the
|
|
|
stellar
wind. In addition, the
|
|
|
|
detection of Mg
XI line emission
|
|
|
was claimed.
|
|
