... spectroscopy can be combined with emission line ratio diagnostic diagrams to separate star formation, AGN activity (and shock excitation!), both spatially and in their absolute contributions to individual velocity components of individual emission lines ...
... If, for example, a particular emission line is normally seen at a wavelength of 10 nm, but we observe it in the spectrum of a star at 9nm, then Dl = (10-9). ...
... Radio emission could provide an important extinction independent tracer, however the relationship radio emission (at 1.4 GHz) and star formation rate (SFR) is not well understood. ...
... The Extended Emission Line Region of the "Green Bean" Galaxy SDSS J2240-0927: a quasar ionization echo illuminating the remnant of a quasar-driven outflow?" ...
... The evolution of stars and gas in galaxies. Observing the atomic neutral hydrogen (HI) 21 cm emission and radio continuum emission of galaxies. ...
... a large radio-telescope near Narrabri, NSW, Australia, to make a survey of all the radio emission from a large patch of the sky ... Radio Galaxy Zoo matches radio images to infrared image as we are looking for the host galaxies of the radio emission. ...