Broadband phase-resolved spectroscopy shows inner disk temperature decreasing as apparent radius increases through the rise phase, with coronal electron temperature peaking then dropping sharply after the burst peak, consistent with radiation-pressure instability and seed-photon starvation.
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Probing heartbeat oscillations from the black hole X-ray binary GRS 1915+105 using spectral-timing analysis
Broadband phase-resolved spectroscopy shows inner disk temperature decreasing as apparent radius increases through the rise phase, with coronal electron temperature peaking then dropping sharply after the burst peak, consistent with radiation-pressure instability and seed-photon starvation.