TY - JOUR
T1 - Correlated radio-X-ray variability of galactic black holes
T2 - A radio-X-ray flare in cygnus X-1
AU - Wilms, Jörn
AU - Pottschmidt, Katja
AU - Pooley, Guy G.
AU - Markoff, Sera
AU - Nowak, Michael A.
AU - Kreykenbohm, Ingo
AU - Rothschild, Richard E.
PY - 2007/7/10
Y1 - 2007/7/10
N2 - We report on the first detection of a quasi-simultaneous radio-X-ray flare of Cygnus X-1. The detection was made on 2005 April 16 with pointed observations by the RXTE and the Ryle telescope, during a phase where the black hole candidate was close to a transition from its soft state to its hard state. The radio flare lagged the X-rays by ∼7 minutes, peaking at 3:20 hr barycentric time (TDB 2,453,476.63864). We discuss this lag in the context of models explaining such flaring events as the ejection of electron bubbles emitting synchrotron radiation.
AB - We report on the first detection of a quasi-simultaneous radio-X-ray flare of Cygnus X-1. The detection was made on 2005 April 16 with pointed observations by the RXTE and the Ryle telescope, during a phase where the black hole candidate was close to a transition from its soft state to its hard state. The radio flare lagged the X-rays by ∼7 minutes, peaking at 3:20 hr barycentric time (TDB 2,453,476.63864). We discuss this lag in the context of models explaining such flaring events as the ejection of electron bubbles emitting synchrotron radiation.
KW - Accretion, accretion disks
KW - Black hole physics
KW - X-rays: binaries
KW - X-rays: stars
UR - http://www.scopus.com/inward/record.url?scp=34547170447&partnerID=8YFLogxK
U2 - 10.1086/520508
DO - 10.1086/520508
M3 - Article
AN - SCOPUS:34547170447
SN - 0004-637X
VL - 663
SP - L97-L100
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2 II
ER -