出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We have measured the X-ray/optical cross-correlation functions (CCFs) of the two black hole binary
systems SWIFT J1753.5−0127 and GX 339−4 using ULTRACAMand RXTE.We find each
one is unique and different from the one such measurement in the literature, for XTE J1118+480.
Our CCFs are inconsistent with reprocessing, and suggest a mechanism which regulates emission
between the different spectral bands, possibly of magnetic origin.
