Astrophysics (Index)About

LINER

(low-ionization nuclear emission-line region)
(galaxy nucleus emitting spectral lines for ionized and neutral atoms)

A LINER (for low-ionization nuclear emission-line region) refers to a galaxy nucleus with certain emission lines, and such a galaxy is called a LINER galaxy (aka a Type 3 Seyfert galaxy). Emission lines include neutral oxygen, singly-ionized oxygen, nitrogen, and sodium, but no more than weak lines of singly-ionized helium or doubly ionized oxygen or nitrogen. More than one theory exists to explain the underlying cause of the lines:

LINER galaxies are common and often something other than grand design spiral galaxies.


(galaxies,galaxy nucleus,ionization)
Further reading:
https://en.wikipedia.org/wiki/Low-ionization nuclear emission-line region
https://ui.adsabs.harvard.edu/abs/1980A%26A....87..152H/abstract
https://ui.adsabs.harvard.edu/abs/1993ApJ...417...63H/abstract
https://ui.adsabs.harvard.edu/abs/2005ApJ...625..716C/abstract
https://ui.adsabs.harvard.edu/abs/2006A%26A...460...45G/abstract
https://ui.adsabs.harvard.edu/abs/2009ApJ...704.1570G/abstract
https://ui.adsabs.harvard.edu/abs/2013A%26A...558A..43S/abstract
https://ui.adsabs.harvard.edu/abs/2016MNRAS.462.1826H/abstract

Referenced by pages:
active galaxy
emission-line object
Seyfert galaxy (Sy)

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