A Multi-wavelength Study of the Host Environment of SMBHB 4C+37.11
4C+37.11, at z = 0.055, shows two compact radio nuclei, imaged by very long baseline interferometry at 7 mas separation, making it the closest known resolved supermassive black hole binary (SMBHB). An important question is whether this unique object is young and was caught on the way to a gravitational in-spiral and merger, or has "stalled" at 7 pc. We describe new radio/optical/X-ray observations of the massive host and its surrounding X-ray halo. These data reveal X-ray/optical channels following the radio outflow and large scale edges in the X-ray halo. These structures are promising targets for further study which should elucidate their relationship to the unique SMBHB core.
Additional Information© 2014 American Astronomical Society. Received 2013 September 9; accepted 2013 November 17; published 2013 December 19. This work was supported in part by NASA grants NNX10AD11G and NNX10AP65G (R.W.R.) and Chandra Award number GO2-13149X (G.B.T.) issued by the Chandra X-ray Observatory Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of NASA under contract NAS8-03060. We thank Adam van Etten for help with the CIAO reductions. R.T.Z. thanks M. Stickel for providing his imaging data of 4C +37.11, S. Howell for assistance during the WIYN runs and K. Herrmann for helpful discussions on narrow-band imaging. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. Facilities: VLA, CXO (ACIS), WIYN (OPTIC), Keck:I (LRIS)
Published - 0004-637X_780_2_149.pdf
Submitted - 1311.5520v1.pdf