The nature of Coma's X-ray emission is still being investigated.

后发星系团X射线发射的性质仍在查证中。

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The scientists found the observed X-ray emission was a factor of 30 to 50 times smaller than expected from the accretion scenario, effectively ruling it out.

科学家发现，观测到的X射线辐射要比吸积模型预言的少上30到50倍，这有效地将该模型排除了。

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A supernova from a merger of two white dwarfs, on the other hand, would create significantly less X-ray emission than the accretion scenario.

相反，来自双白矮星并合的超新星产生的X射线辐射要比吸积少很多。

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One of the interesting means the physicists article focuses on is the use of proton-induced x-ray emission (PIXE), which allows for a non-destructive study of art objects.

FORBES: Scientists Use Ion Beams To Detect Forged Art

There are, however, no interference problems with field-emission X-ray sources, so these can be used to take high-resolution pictures while treatment is proceeding.

ECONOMIST: Modern X-ray technology

What you would see, says Fender, is emission in the x-ray, radio, infrared or optical.

FORBES: Free-Floating, Nearby Black Holes Detectable By Decade's End, New Study Reports