... excitation or to that powered by a weak (LINER) active galactic nucleus (AGN ... curves, which separate the areas with the AGN/LINER excitations from areas with the ... shock-like or powered by a weak (LINER) AGN, but in the ring and beyond it the gas ...
... The black curves, which separate the areas with the AGN/LINER excitations (to the right) from areas with the SF-induced ... 9519 and the greater part of UGC 4551 fall into the AGN/LINERdominated (or shock-dominated) region of the BPT diagram. long ...
... 2009). This fact is inconsistent with the scenarios of major merger or AGN-triggered expansion, but agrees with multiple minor merger contributions. ...
... provide gravitational heating of protoelliptical galaxies at z 2 that turbulizes gaseous disks, stops wide-spread star formation and transforms stellar disks into stellar spheroids without the need of any feedback from supernova or AGN (Johansson et al ...
... Theorists develop mainly the first class of mechanisms: we known the AGN fueling models by Shlosman et al. (1989) for compact nested "secondary" bars and the models of nuclear spirals in the gaseous disk by Maciejewski (2004a, 2004b). ...
... T # 0, v r < 3000 km s #1 , B 0 T < 13:0, # 2000:0 > 0, and without a bright active galactic nucleus (AGN ) 1 Based on observations collected with the 6 m telescope ( BTA) at the Special Astrophysical Observatory (SAO) of the Russian Academy of Sciences ...
... Within the radius of 2 from the center of NGC 3599 where the emission lines are still well measurable, their ratios remain far from the criteria for excitation by young stars and instead provide evidence of AGN excitation or shock excitation. ...