Light-year Scale Radio Cores in Four LINER Galaxies

Abstract

The LINER galaxies NGC 2911, NGC 3079, NGC 3998, and NGC 6500 were observed at 5 GHz with the European VLBI Network at a resolution of 5 milliarcsecond and found to possess flat-spectrum, variable, high-brightness temperature ($T_{\mathrm{B}}>10^8$ K) radio cores. These radio characteristics reinforce the view that these LINERs host central engines associated with active galactic nuclei.

6 pages

References in corpus (4)

• Detection of Nuclear X-ray Sources in Nearby Galaxies with Chandra
• The Origin of Radio Emission in Low-Luminosity Active Galactic Nuclei: Jets, Accretion Flows, or Both?
• Chandra Detection of X-ray Absorption Associated with a Damped Lyman Alpha System
• The Soft X-ray Properties of Nearby Low-Luminosity Active Galactic Nuclei and their Contribution to the Cosmic X-ray Background

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• The subarcsecond mid-infrared view of local active galactic nuclei: I. The N- and Q-band imaging atlas
• The Murmur of the Sleeping Black Hole: Detection of Nuclear Ultraviolet Variability in LINER Galaxies
• Low-Luminosity Active Galactic Nuclei: Are They UV-Faint and Radio Loud?
• Further Clues to the Nature of Composite LINER/HII Galaxies
• Testing Radiatively-Inefficient Accretion Flow Theory: an XMM-Newton Observation of NGC 3998
• The Nuclear Near-Infrared Spectral Properties of Nearby Galaxies
• Evidence of parsec-scale jets in Low-luminosity Active Galactic Nuclei
• A Radio Census of Nuclear Activity in Nearby Galaxies
• Study of LINER sources with broad H(alpha) emission. Spectral energy distribution and multiwavelength correlations
• Measuring supermassive black holes with gas kinematics: the active S0 galaxy NGC 3998
• Variability and spectral energy distributions of low-luminosity active galactic nuclei: a simultaneous X-ray/UV look with Swift
• The nature of nuclear Halpha emission in LINERs
• The Shocking Power Sources of LINERs
• Spatially-Offset AGN Candidates in the CLASS Survey
• Constraining the X-ray reflection in low accretion rate AGN using XMM-Newton, NuSTAR and Swift
• A rare example of low surface-brightness radio lobes in a gas-rich early-type galaxy: the story of NGC 3998