By Vincenzo Antonuccio-Delogu (editor), Joseph Silk (editor)
Up to now decade, convincing facts has been collected about the impact of energetic galactic nuclei (AGN) task at the inner and exterior surroundings in their host galaxies. that includes contributions from well-respected researchers within the box, and bringing jointly paintings through experts in either galaxy formation and AGN, this quantity addresses a few key questions about AGN suggestions within the context of galaxy formation. the themes coated comprise downsizing and star-formation time scales in great elliptical galaxies, the relationship among the epochs of supermassive black gap development and galaxy formation and the query of even if AGN and famous person formation coexist. Authors additionally talk about key hard computational difficulties, together with jet-interstellar/intergalactic medium interactions, and either jet- and merging-induced famous person formation. compatible for researchers and graduate scholars in astrophysics, this quantity displays the enticing and full of life discussions occurring during this rising box of analysis.
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Extra info for AGN Feedback in Galaxy Formation (Cambridge Contemporary Astrophysics)
Et al. , R. C. 1998, ARA&A, 36, 189 Lonsdale, C. J. et al. 2003, PASP, 115, 897 Lonsdale, C. , et al. 2009, ApJ, 692, 422 Polletta, M. , et al. 2007, ApJ, 663, 81 Weedman, D. W. & Houck, J. R. 2009, ApJ, 698, 1682 4 Star formation in galaxies hosting active galactic nuclei up to z ∼ 1 John D. 1 Introduction This contribution aims to address the fundamental question, effectively highlighting the overall theme of the workshop, as to what processes are important for eventually suppressing the growth of supermassive black holes (SMBHs) and how is this related to the evolution of star formation from z ∼ 1 to the present.
ApJ, 696, 891 Star formation in galaxies hosting active galactic nuclei 37 Ho, L. (2005). [O II] emission in quasar host galaxies: evidence for a suppressed star formation efficiency. ApJ, 629, 680 Hopkins, P. F. & Hernquist, L. (2006). Fueling low-level AGN activity through stochastic accretion of cold gas. ApJS, 166, 1 Hopkins, P. , Keres, D. (2008). A cosmological framework for the co-evolution of quasars, supermassive black holes, and elliptical galaxies. I. Galaxy mergers and quasar activity.
We find that a significant amount of dispersion is present, thus indicating that a direct relationship between star formation and black hole accretion does not occur on a case-by-case basis (see Figure 13a of Silverman et al. 2009). On average, a co-evolution scenario is clearly evident given the constancy of this ratio (∼10−2 ) with redshift. Remarkably, this ratio is in very good agreement with that of low redshift type 2 AGNs in SDSS (Netzer 2009). The order-of-magnitude increase in this ratio, compared to the locally measured value of MBH /Mbulge , is consistent 36 J.