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

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.

15 pages in emulateapj format, including 4 tables and 8 figures. To be published in ApJ

References in corpus (15)

• Large Merger Recoils and Spin Flips From Generic Black-Hole Binaries
• A Compact Supermassive Binary Black Hole System
• Supermassive black hole binaries in gaseous and stellar circumnuclear discs: orbital dynamics and gas accretion
• A Candidate Sub-Parsec Supermassive Binary Black Hole System
• The Fundamental Plane of Accretion Onto Black Holes with Dynamical Masses
• Deep ATLAS radio observations of the CDFS-SWIRE field
• Long-Term Profile Variability of Double Peaked Emission Lines in Active Galactic Nuclei
• Constraining sub-Parsec Binary Supermassive Black Holes in Quasars with Multi-Epoch Spectroscopy. I. The General Quasar Population
• Search for Supermassive Black Hole Binaries in the Sloan Digital Sky Survey Spectroscopic Sample
• Modeling of Emission Signatures of Massive Black Hole Binaries: I Methods
• The Spiral Host Galaxy of the Double Radio Source 0313-192
• Enormous disc of cool gas surrounding the nearby powerful radio galaxy NGC 612 (PKS 0131-36)
• Two in one? A possible dual radio-emitting nucleus in the quasar SDSS J1425+3231
• Discovery of Radio Emission from the Quasar SDSS J1536+0441, a Candidate Binary Black-Hole System
• Broad reprocessed Balmer emission from warped accretion discs

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• Radio-Selected Binary Active Galactic Nuclei from the Very Large Array Stripe 82 Survey
• Emission Signatures from Sub-parsec Binary Supermassive Black Holes I: Diagnostic Power of Broad Emission Lines
• Supermassive Black Hole Binaries: The Search Continues
• Hubble Space Telescope Wide Field Camera 3 Identifies an $r_p$ = 1 Kpc Dual Active Galactic Nucleus in the Minor Galaxy Merger SDSS J0924+0510 at z = 0.1495
• Electromagnetic signatures from accreting massive black hole binaries in time domain photometric surveys
• Dual AGN candidates with double-peaked [O III] lines matching that of confirmed dual AGNs
• Considerations for the Observability of Kinematically Offset Binary AGN
• Detecting subparsec super-massive binary black holes: Long termmonitoring perspective