The hard state of a transient black hole: is the accretion disk truncatedquestionMark

The combination of the fast EPICpn modes and broadband coverage with RXTEproved to be an effective means of exploring accretion in bright Galactic blackholes. XMM and NuSTAR provide an even more powerful combination. We propose tomake one joint 40virgulks observation of a new or known black hole transient during abright, hard outburst phase. The goals of this program are to 1) measure thespin of the black hole via the Fe Kalpha line and broadband disk reflectionspectrum, 2) test an apparent anticorrelation between winds and jets in softand hard states by making a very sensitive search for winds in a hard,intermediate, or very high state. This observation will be supported by anetwork of groundbased observatories and Xray monitoring. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]