Physical conditions in the nuclei of emission-line galaxies are investigated by.    From Wordnik.com.  [Netvouz - new bookmarks] Reference

I will use the standard technique of emission-line and continuum imaging, which easily discloses PNe.    From Wordnik.com.  [SpaceRef Top Stories] Reference

Abundances in the interstellar medium (ISM) are typically determined using emission-line spectroscopy of HII regions.    From Wordnik.com.  [SpaceRef Top Stories] Reference

The survey was designed to collect basic observational data for a large number of extragalactic emission-line sources.    From Wordnik.com.  [Science Blog - Science news straight from the source] Reference

The Galaxy Zoo morphological survey of SDSS objects has uncovered a peculiar emission-line structure whose spectrum matches the narrow-line region of AGN, despite lying at least 20 kpc from a galaxy whose activity is currently very weak.    From Wordnik.com.  [SpaceRef Top Stories] Reference