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WISE J233237.05-505643.5: a Double-Peaked Broad-Lined AGN with Spiral-Shaped Radio Morphology | | Chao-Wei Tsai
; Thomas H. Jarrett
; Daniel Stern
; Emonts Bjorn
; R. Scott Barrows
; Roberto J. Assef
; Ray P. Norris
; Peter R. M. Eisenhardt
; Carol J. Lonsdale
; Andrew W. Blain
; Dominic J. Benford
; Jingwen Wu
; Brian Stalder
; Christopher W. Stubbs
; F. William High
; K. L. Li
; Albert K. H.Kong
; | | Date: |
8 Oct 2013 | | Abstract: | We present radio continuum mapping, optical imaging and spectroscopy of the
newly discovered double-peaked broad-lined AGN WISE J233237.05-505643.5 at
redshift z = 0.3447. This source exhibits an FR-I and FR-II hybrid-morphology,
characterized by bright core, jet, and Doppler-boosted lobe structures in ATCA
continuum maps at 1.5, 5.6, and 9 GHz. Unlike most FR-II objects, W2332-5056 is
hosted by a disk-like galaxy. The core has a projected 5" linear radio feature
that is perpendicular to the curved primary jet, hinting at unusual and complex
activity within the inner 25 kpc. The multi-epoch optical-near-IR photometric
measurements indicate significant variability over a 3-20 year baseline from
the AGN component. Gemini-South optical data shows an unusual double-peaked
emission-line features: the centroids of the broad-lined components of H-alpha
and H-beta are blueshifted with respect to the narrow lines and host galaxy by
~ 3800 km/s. We examine possible cases which involve single or double
supermassive black holes in the system, and discuss required future
investigations to disentangle the mystery nature of this system. | | Source: | arXiv, 1310.2257 | | Services: | Forum | Review | PDF | Favorites | |
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