GALAXY ZOO: THE FUNDAMENTALLY DIFFERENT CO-EVOLUTION OF SUPERMASSIVE BLACK HOLES AND THEIR EARLY- AND LATE-TYPE HOST GALAXIES
| Autor: | Karen L. Masters, Steven P. Bamford, Chris Lintott, Robert C. Nichol, Anže Slosar, Carolin N. Cardamone, Sugata Kaviraj, C. Megan Urry, Dan Andreescu, Phil Murray, M. Jordan Raddick, Nicholas P. Ross, Ezequiel Treister, Jan Vandenberg, Shanil N. Virani, Marc Sarzi, Daniel Thomas, William C. Keel, Alexander S. Szalay, Kevin Schawinski, Paolo De Coppi |
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| Rok vydání: | 2010 |
| Předmět: |
Cosmology and Gravitation
Cosmology and Nongalactic Astrophysics (astro-ph.CO) Astrophysics::High Energy Astrophysical Phenomena Milky Way media_common.quotation_subject Population FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 01 natural sciences 0103 physical sciences education 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics media_common Physics Supermassive black hole education.field_of_study 010308 nuclear & particles physics Late type Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Universe Galaxy Black hole Space and Planetary Science Sky Astrophysics of Galaxies (astro-ph.GA) Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Schawinski, K, Urry, C M, Virani, S, Coppi, P, Bamford, S P, Treister, E, Lintott, C J, Sarzi, M, Keel, W C, Kaviraj, S, Cardamone, C N, Masters, K L, Ross, N P, Andreescu, D, Murray, P, Nichol, R C, Raddick, M J, Slosar, A, Szalay, A S, Thomas, D & Vandenberg, J 2010, ' Galaxy Zoo : the fundamentally different co-evolution of supermassive black holes and their early-and late-type host galaxies ', The Astrophysical Journal, vol. 711, no. 1, pp. 284-302 . https://doi.org/10.1088/0004-637X/711/1/284 |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.1088/0004-637x/711/1/284 |
| Popis: | We use data from the Sloan Digital Sky Survey and visual classifications of morphology from the Galaxy Zoo project to study black hole growth in the nearby Universe (z < 0.05) and to break down the AGN host galaxy population by color, stellar mass and morphology. We find that black hole growth at luminosities L_OIII >1E40 erg/s in early- and late-type galaxies is fundamentally different. AGN host galaxies as a population have a broad range of stellar masses (1E10-1E11 Msun), reside in the green valley of the color-mass diagram and their central black holes have median masses around 1E6.5 Msun. However, by comparing early- and late-type AGN host galaxies to their non-active counterparts, we find several key differences: in early-type galaxies, it is preferentially the galaxies with the least massive black holes that are growing, while late-type galaxies, it is preferentially the most massive}black holes that are growing. The duty cycle of AGN in early-type galaxies is strongly peaked in the green valley below the low-mass end (1E10 Msun) of the red sequence at stellar masses where there is a steady supply of blue cloud progenitors. The duty cycle of AGN in late-type galaxies on the other hand peaks in massive (1E11 Msun) green and red late-types which generally do not have a corresponding blue cloud population of similar mass. At high Eddington ratios (L/L_Edd > 0.1), the only population with a substantial fraction of AGN are the low-mass green valley early-type galaxies. Finally, the Milky Way likely resides in the "sweet spot" on the color-mass diagram where the AGN duty cycle of late-type galaxies is highest. We discuss the implications of these results for our understanding of the role of AGN in the evolution of galaxies 22 pages, 12 figures, 3 tables. Accepted for publication in the Astrophysical Journal. A version with full-resolution figures is available at http://www.astro.yale.edu/ks57/papers/Schawinski.GZAGNhostgalaxies.2010.pdf |
| Databáze: | OpenAIRE |
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