Imaging the Jet/ism Interactions around the Black Hole XTEJ1550-564

Physics

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Chandra Proposal Id #03408078

Scientific paper

We discovered a new radio source, 22" West of the black hole XTEJ1550-564 (IAUC 7795; 2002 Jan 19). Subsequent observations show it has a variable spectrum, is extended toward XTEJ1550 and is located along the axis of the VLBI jets observed during the Sept 1998 radio flare. Our Chandra images from Aug-Sept 2000 show an extended X-ray source also along the VLBI jet axis, but directly opposite the radio source (23" to the East), and with similar flux during the two Chandra observations (21 days apart). We found a transient radio source in archival data at this position in Feb 2001, indicating a lifetime of a few months. It is likely that both components represent superluminal plasmons ejected during the Sept 1998 major radio flare and interacting with the ISM. The proposed Chandra observation will allow us to study the physics of jet/ISM interactions and the total power of relativistic jets, with implications for our understanding of relativistic jets from AGN.

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