WebAccounting for complex density gradients and temperature profiles is critical for reliably estimating the fundamental properties of Hii regions and galaxies. Diffuse ionized gas can raise metallicity estimates, flatten metallicity gradients, and introduce scatter in ionization parameter measurements. WebApr 23, 2012 · Our result implies that the metallicity plays an important role in the formation of quasar outflows, likely via affecting outflow acceleration. This effect may have a profound impact on galaxy evolution via momentum feedback and chemical enrichment. Submission history From: Huiyuan Wang [ view email ] [v1] Mon, 23 Apr 2012 23:28:42 UTC (226 KB)
Metallicity Evolution of AGNs - Cambridge
WebWe investigate the effect of metallicity calibrations, AGN classification, and aperture covering fraction on the local mass-metallicity (M-Z) relation using 27,730 star-forming galaxies from the SDSS Data Release 4. We analyze the SDSS M-Z relation with 10 metallicity calibrations, including theoretical and empirical methods. WebAug 21, 2024 · The source of radiation power in Active Galactic Nuclei (AGN) is supplied by the process of accretion of circumnuclear material onto a central supermassive black hole. The black hole mass can range from up to . rsbn selection code
Metallicity in quasar/AGN environment - A consequence of usual …
WebAgni is a demon in the series. Agni is one of the most important of the Hindu and/or Vedic gods, being the god of fire, receiver of sacrifices and the messenger of the gods. Agni … WebOct 24, 2024 · AGN photoionization, the process by which the AGN’s ionizing photons strike nearby atoms or molecules and strip them of their electron (s), has traditionally been suspected of producing ionized ultraviolet and optical emission lines near AGNs. On the other hand, shock waves have also been shown to play a critical role in this process. WebThe gas-phase metallicity of AGN ionized regions has been studied intensively in the past (see, e.g., Hamann & Ferland 1999 for a review). A seminal paper by Hamann & Ferland … rsbn rss feed