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observational overview of state transitions in x-ray binaries

observational overview of state transitions in x-ray binaries

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SPECTRAL EVOLUTION<br />

hard<br />

GRO J1655-40<br />

And here I’m add<strong>in</strong>g the hardness evolution. We still see the ma<strong>in</strong> hard -> s<strong>of</strong>t -> hard<br />

<strong>transitions</strong>, but the behavior around the time <strong>of</strong> the flar<strong>in</strong>g actually shows some changes <strong>in</strong><br />

hardness as well. Let’s see what the HID looks like.<br />

s<strong>of</strong>t<br />

hard

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