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WISE J233237.05-505643.5: A Double-Peaked Broad-Lined AGN with Spiral-Shaped Radio Morphology

Authors :
Tsai, Chao Wei
Jarrett, Thomas H
Stern, Daniel
Emonts, Bjorn
Barrows, R. Scott
Assef, Roberto J
Norris, Ray P
Eisenhardt, Peter R. M
Lonsdale, Carol
Blain, Andrew W
Benford, Dominic J
Wu, Jingwen
Stalder, Brian
Stubbs, Christopher W
High, F. William
Li, K. L
Kong, Albert K. H
Publication Year :
2013
Publisher :
United States: NASA Center for Aerospace Information (CASI), 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 approximately 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.

Subjects

Subjects :
Astronomy
Astrophysics

Details

Language :
English
Database :
NASA Technical Reports
Publication Type :
Report
Accession number :
edsnas.20140010492
Document Type :
Report