LINERs as Low-Luminosity Active Galactic Nuclei

Abstract

Many nearby galaxies contain optical signatures of nuclear activity in the form of LINER nuclei. LINERs may be the weakest and most common manifestation of the quasar phenomenon. The physical origin of this class of objects, however, has been ambiguous. I draw upon a number of recent observations to argue that a significant fraction of LINERs are low-luminosity active galactic nuclei.

Invited review to appear in The 32nd COSPAR Meeting, The AGN-Galaxy Connection (Advances in Space Research). LaTex, 10 pages including embedded figures

References in corpus (6)

• The Ultraviolet Spectra of LINERs: A Comparative Study
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• Chandra Detection of a TypeII Quasar at z=3.288
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• Galaxy Mergers Drive Shocks: an Integral Field Study of GOALS galaxies
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• The warm ionized gas in CALIFA early-type galaxies: 2D emission-line patterns and kinematics for 32 galaxies
• Nearby early-type galaxies with ionized gas.IV. Origin and powering mechanism of the ionized gas
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• The INTEGRAL/IBIS AGN catalogue I: X-ray absorption properties versus optical classification
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• Discovery of Water Maser Emission in Eight AGN with 70-m Antennas of NASA's Deep Space Network
• The Spatial Clustering of Low Luminosity AGN
• Discovery of Water Maser Emission in Five AGN and a Possible Correlation Between Water Maser and Nuclear 2-10 keV Luminosities
• The relation between galaxy activity and the dynamics of compact groups of galaxies
• The Nature of Composite LINER/HII Galaxies, As Revealed from High-Resolution VLA Observations
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• Discovery of Radio Outbursts in the Active Nucleus of M81
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• The NGC 1614 Interacting Galaxy: Molecular Gas Feeding a "Ring of Fire"
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• LeMMINGs IV: The X-ray properties of a statistically-complete sample of the nuclei in active and inactive galaxies from the Palomar sample
• A Cigale module tailored (not only) for Low-Luminosity AGN
• Spatially-resolved properties of early-type group-dominant galaxies with MUSE: gas content, ionisation mechanisms and metallicity gradients
• Looking for Signatures of AGN Feedback in Radio-Quiet AGN
• Towards a More Complete Optical Census of Active Galactic Nuclei, Via Spatially-Resolved Spectroscopy
• A versatile classification tool for galactic activity using optical and infrared colors
• A Mid-infrared Flare in the Active Galaxy MCG-02-04-026: Dust Echo of a Nuclear Transient Event
• Active Galactic Nuclei at the Crossroads of Astrophysics
• A Possible Evolutionary Connection between AGN and Starburst in LINERs
• Eccentric Disks from Gaseous Rings around Equal-Mass, Circular Binaries