A Search for Double-peaked narrow emission line Galaxies and AGNs in the LAMOST DR1

Abstract

LAMOST has released more than two million spectra, which provide the opportunity to search for double-peaked narrow emission line (NEL) galaxies and AGNs. The double-peaked narrow-line profiles can be well modeled by two velocity components, respectively blueshifted and redshifted with respect to the systemic recession velocity. This paper presents 20 double-peaked NEL galaxies and AGNs found from LAMOST DR1 using a search method based on multi-gaussian fit of the narrow emission lines. Among them, 10 have already been published by other authors, either listed as genuine double-peaked NEL objects or as asymmetric NEL objects, the remaining 10 being first discoveries. We discuss some possible origins for double-peaked narrow-line features, as interaction between jet and narrow line regions, interaction with companion galaxies and black hole binaries. Spatially resolved optical imaging and/or follow-up observations in other spectral bands are needed to further discuss the physical mechanisms at work.

arXiv comment17 pages, 5figures, 4 tables, accepted by RAA

References in corpus (43)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Host Galaxies of AGN
• Theoretical Modeling of Starburst Galaxies
• Preliminary Results from NEOWISE: An Enhancement to the Wide-field Infrared Survey Explorer for Solar System Science
• Discovery of a binary AGN in the ultraluminous infrared galaxy NGC 6240 using Chandra
• Extending the Nearby Galaxy Heritage with WISE: First Results from the WISE Enhanced Resolution Galaxy Atlas
• Completion of a Survey and Detailed Study of Double-Peaked Emission Lines in Radio-Loud AGNs
• Feedback in Luminous Obscured Quasars
• Inspiralling Supermassive Black Holes: A New Signpost for Galaxy Mergers
• A Search for Binary Active Galactic Nuclei: Double-Peaked [OIII] AGN in the Sloan Digital Sky Survey
• 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
• A spectacular outflow in an obscured quasar
• Active Galactic Nuclei with Double-peaked Narrow Lines: Are They Dual AGNs?
• Discovery of Four kpc-Scale Binary AGNs
• Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. I. The Frequency on ~ 5-100 kpc Scales
• The Nature of Double-Peaked [O III] Active Galactic Nuclei
• A 1.75 kpc/h Separation Dual AGN at z=0.36 in the COSMOS Field
• Kiloparsec-scale Spatial Offsets in Double-peaked Narrow-line Active Galactic Nuclei. I. Markers for Selection of Compelling Dual Active Galactic Nucleus Candidates
• Mergers in Double-Peaked [O III] Active Galactic Nuclei
• Long-Term Profile Variability of Double Peaked Emission Lines in Active Galactic Nuclei
• 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
• Double-peaked Narrow-Line Signatures of Dual Supermassive Black Holes in Galaxy Merger Simulations
• A Kiloparsec-Scale Binary Active Galactic Nucleus Confirmed by the Expanded Very Large Array
• Obscured Binary Quasar Cores in SDSS J104807.74+005543.5?
• The Jet-Driven Outflow in the Radio Galaxy SDSS J1517+3353: Implications for Double-Peaked Narrow-Line AGN
• 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
• HST Observations of the Double-Peaked Emission Lines in the Seyfert Galaxy Markarian 78: Mass Outflows from a Single AGN
• Chandra Observations of a 1.9 kpc Separation Double X-ray Source in a Candidate Dual AGN Galaxy at z=0.16
• Spatially-Resolved Spectroscopy of SDSS J0952+2552: a Confirmed Dual AGN
• Adaptive Optics Imaging of QSOs with Double-Peaked Narrow Lines: Are they Dual AGNs?
• Chandra High resolution Observations of CID-42, a candidate recoiling SMBH
• The Growth of Black Holes: Insights From Obscured Active Galaxies
• A Candidate Dual AGN at z=1.175
• The Nature of Optical Features in the Inner Region of the 3C48 Host Galaxy
• The site conditions of the Guo Shou Jing Telescope
• FR II Quasars: Infrared Properties, Star Formation Rates, and Extended Ionized Gas
• Stellar population analysis on local infrared-selected galaxies

Cited by in corpus (14)

• The First Data Release (DR1) of the LAMOST general survey
• The Quest for Dual and Binary Supermassive Black Holes: A Multi-Messenger View
• A sample of galaxy pairs identified from the LAMOST spectral survey and the Sloan Digital Sky Survey
• 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
• The Nature of Active Galactic Nuclei with Velocity Offset Emission Lines
• The correlated variations of C IV narrow absorption lines and quasar continuum
• A High Fraction of Double-peaked Narrow Emission Lines in Powerful Active Galactic Nuclei
• Compact object mergers: Observations of supermassive binary black holes and stellar tidal disruption events
• Central velocity dispersion catalog of LAMOST-DR7 galaxies
• Characterisation of a candidate dual AGN
• SVM-Lattice: A Recognition & Evaluation Frame for Double-peaked Profiles
• A SysTematic seaRch fOr Dual Agns in meRgINg Galaxies (ASTRO-DARING) II: first results from long-slit spectroscopic observations
• Ionized gas metallicity of the strong [OIII]λ emission-line compact galaxies in the LAMOST survey
• Revisiting dual AGN candidates with spatially resolved LBT spectroscopy -- The impact of spillover light contamination