SDSS J222428.53+261423.2: unique emission lines properties unveil a sub-kiloparsec dual AGN candidate

Abstract

In this paper, we presented a detailed analysis of the Sloan Digital Sky Survey optical spectrum of a new sub-kpc scale dual AGN candidate SDSS J222428.53+261423.2 (=SDSS J2224). The target is one of the few AGNs with all the optical narrow emission lines characterized by double-peaked profiles and with peak separations in velocity units of about 930 km/s. If the double-peaked narrow emission lines (DPNELs) are due to a dual AGN in \obj, the estimated physical separation between the two cores is about 500 pc. Meanwhile, three alternative explanations are also discussed in this paper, however, we can not find solid evidence to completely rule them out. Our results support the presence of a sub-kpc dual AGN with DPNELs in all lines, indicating a key episode of galaxy merging evolution at sub-kpc scale.

arXiv comment9 pages, 5 figures, accepted to be published in MNRAS Letter

References in corpus (57)

• A Fundamental Relation Between Supermassive Black Holes and Their Host Galaxies
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion
• Energy input from quasars regulates the growth and activity of black holes and their host galaxies
• The slope of the black-hole mass versus velocity dispersion correlation
• Composite Quasar Spectra From the Sloan Digital Sky Survey
• Overview of the DESI Legacy Imaging Surveys
• A Catalog of Quasar Properties from SDSS DR7
• Estimating Black Hole Masses in Active Galaxies Using the Halpha Emission Line
• A possible close supermassive black-hole binary in a quasar with optical periodicity
• A Comparison of Stellar and Gaseous Kinematics in the Nuclei of Active Galaxies
• Equal- and unequal-mass mergers of disk and elliptical galaxies with black holes
• A Candidate Sub-Parsec Supermassive Binary Black Hole System
• Analysis of optical Fe II emission in a sample of AGN spectra
• A Search for Binary Active Galactic Nuclei: Double-Peaked [OIII] AGN in the Sloan Digital Sky Survey
• Observations of Feedback from Radio-Quiet Quasars: I. Extents and Morphologies of Ionized Gas Nebulae
• Ionized outflows from active galactic nuclei as the essential elements of feedback
• Type 2 AGNs with Double-Peaked [O III] Lines: Narrow Line Region Kinematics or Merging Supermassive Black Hole Pairs?
• Type 2 Active Galactic Nuclei with Double-Peaked [OIII] Lines. II. Single AGNs with Complex Narrow-Line Region Kinematics are More Common than Binary AGNs
• Active Galactic Nuclei with Double-peaked Narrow Lines: Are They Dual AGNs?
• The Nature of Double-Peaked [O III] Active Galactic Nuclei
• Kiloparsec-scale Spatial Offsets in Double-peaked Narrow-line Active Galactic Nuclei. I. Markers for Selection of Compelling Dual Active Galactic Nucleus Candidates
• Chandra X-ray and Hubble Space Telescope Imaging of Optically Selected kiloparsec-Scale Binary Active Galactic Nuclei I. Nature of the Nuclear Ionizing Sources
• Double-peaked narrow emission-line galaxies from Sloan Digital Sky Survey. I. Sample and basic properties
• Obscured Binary Quasar Cores in SDSS J104807.74+005543.5?
• The route to massive black hole formation via merger-driven direct collapse: a review
• The Scaling of Stellar Mass and Central Stellar Velocity Dispersion for Quiescent galaxies at z < 0.7
• The Black Hole -- Bulge Mass Relation including Dwarf Galaxies Hosting Active Galactic Nuclei
• Narrow double-peaked emission lines of SDSS J131642.90+175332.5: signature of a single or a binary AGN in a merger, jet-cloud interaction, or unusual narrow-line region geometry
• The DEEP2 Galaxy Redshift Survey: AEGIS Observations of a Dual AGN at z=0.7
• Emission line outflows in PKS1549-79: the effects of the early stages of radio source evolution?
• Revealing Hidden Substructures in the $M_{BH}$-$\sigma$ Diagram, and Refining the Bend in the $L$-$\sigma$ Relation
• Spatially-Resolved Spectroscopy of SDSS J0952+2552: a Confirmed Dual AGN
• A local baseline of the black hole mass scaling relations for active galaxies. IV. Correlations between $M_{\mathrm{BH}}$ and host galaxy $\sigma$, stellar mass, and luminosity
• The birth of a supermassive black hole binary
• A Local Baseline of the Black Hole Mass Scaling Relations for Active Galaxies. III. The BH mass - $\sigma$ relation
• A sub-kpc-scale binary AGN with double narrow-line regions
• Searching for Dual AGN in Galaxies with Double-Peaked Emission Line Spectra using Radio Observations
• The Origin of Double-peaked Narrow Lines in Active Galactic Nuclei. IV. Association with Galaxy Mergers
• A Candidate Dual AGN at z=1.175
• Identification of Outflows and Candidate Dual Active Galactic Nuclei in SDSS Quasars at z=0.8-1.6
• X-ray spectral components of the blazar and binary black hole candidate OJ 287 (2005-2020)
• Unveiling sub-parsec supermassive black hole binary candidates in active galactic nuclei
• Ionised Gas Kinematics in MaNGA AGN. Extents of the Narrow Line and Kinematically Disturbed regions
• Stellar mass versus stellar velocity dispersion: which is better for linking galaxies to their dark matter halos?
• The radio structure of 3C 316, a galaxy with double-peaked narrow optical emission lines
• The X-ray view of optically selected dual AGN
• New insights on the recoiling/binary black hole candidate J0927+2943 via molecular gas observations
• Tracing the outflow kinematics in Type 2 Active Galactic Nuclei
• A possible sub-kiloparsec dual AGN buried behind the galaxy curtain
• Dependence of NLRs sizes on [OIII] luminosity in low redshift AGN with double-peaked broad Balmer emission lines
• A 6.4yr optical quasi-periodic oscillations in SDSS J075217.84+193542.2: a new candidate for central binary black hole system
• A Multi-wavelength Study of the Dual Nuclei in Mrk 212
• NGC 6240 Supermassive Black Hole Binary dynamical evolution based on Chandra data
• SDSS J1058+5443: A blue quasar does not have optical/NUV broad emission lines
• Velocity offset between emission and absorption lines might be an effective indicator of dual core system
• HI 21-cm absorption in radio-loud AGN with double-peaked [OIII] emission

Cited by in corpus (2)

• Search for Quasar Pairs with $Gaia$ Astrometric Data. I. Method and Candidates
• SDSS J153231.80+420342.7: a triple black hole candidate with a close binary black hole