NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-27 T00:17:23 PDT
Help | Comment | NED Home

For refcode 2008ApJ...674L...9D:
Retrieve 28 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2008ApJ...674L...9D High-Ionization Mid-Infrared Lines as Black Hole Mass and Bolometric Luminosity Indicators in Active Galactic Nuclei Dasyra, K. M.; Ho, L. C.; Armus, L.; Ogle, P.; Helou, G.; Peterson, B. M.; Lutz, D.; Netzer, H.; Sturm, E. Abstract. We present relations of the black hole mass and the optical luminosity with the velocity dispersion and the luminosity of the [Ne V] and the [O IV] high-ionization lines in the mid-infrared (MIR) for 28 reverberation-mapped active galactic nuclei. We used high-resolution Spitzer Infrared Spectrograph and Infrared Space Observatory Short Wavelength Spectrometer data to fit the profiles of these MIR emission lines that originate from the narrow-line region of the nucleus. We find that the lines are often resolved and that the velocity dispersion of [Ne V] and [O IV] follows a relation similar to that between the black hole mass and the bulge stellar velocity dispersion found for local galaxies. The luminosity of the [Ne V] and the [O IV] lines in these sources is correlated with that of the optical 5100 Angstrom continuum and with the black hole mass. Our results provide a means to derive black hole properties in various types of active galactic nuclei, including highly obscured systems. Key words: Galaxies: Active, Galaxies: Kinematics and Dynamics, Galaxies: Nuclei, Galaxies: Seyfert, Infrared: Galaxies, Galaxies: Quasars: Emission Lines
Retrieve 28 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home