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dc.contributor.author
de Ravel, L.
dc.contributor.author
Kampczyk, Pawel
dc.contributor.author
Le Fèvre, O.
dc.contributor.author
Lilly, Simon J.
dc.contributor.author
Tasca, L.
dc.contributor.author
Tresse, L.
dc.contributor.author
Lopez-Sanjuan, C.
dc.contributor.author
Bolzonella, M.
dc.contributor.author
Kovac, Katarina
dc.contributor.author
Abbas, U.
dc.contributor.author
Bardelli, S.
dc.contributor.author
Bongiorno, A.
dc.contributor.author
Caputi, K.
dc.contributor.author
Contini, T.
dc.contributor.author
Coppa, G.
dc.contributor.author
Cucciati, O.
dc.contributor.author
de la Torre, S.
dc.contributor.author
Dunlop, J.S.
dc.contributor.author
Franzetti, P.
dc.contributor.author
Garilli, B.
dc.contributor.author
Iovino, A.
dc.contributor.author
Kneib, J.-P.
dc.contributor.author
Koekemoer, A.M.
dc.contributor.author
Knobel, Christian
dc.contributor.author
Lamareille, F.
dc.contributor.author
Le Borgne, J.-F.
dc.contributor.author
Le Brun, V.
dc.contributor.author
Leauthaud, A.
dc.contributor.author
Maier, Christian
dc.contributor.author
Mainieri, V.
dc.contributor.author
Mignoli, M.
dc.contributor.author
Pello, R.
dc.contributor.author
Peng, Yingjie
dc.contributor.author
Perez Montero, E.
dc.contributor.author
Ricciardelli, E.
dc.contributor.author
Scodeggio, M.
dc.contributor.author
Silverman, John D.
dc.contributor.author
Tanaka, M.
dc.contributor.author
Vergani, D.
dc.contributor.author
Zamorani, G.
dc.contributor.author
Zucca, E.
dc.contributor.author
Bottini, D.
dc.contributor.author
Cappi, A.
dc.contributor.author
Carollo, C. Marcella
dc.contributor.author
Cassata, P.
dc.contributor.author
Cimatti, A.
dc.contributor.author
Fumana, M.
dc.contributor.author
Guzzo, L.
dc.contributor.author
Maccagni, D.
dc.contributor.author
Marinoni, C.
dc.contributor.author
McCracken, Henry J.
dc.contributor.author
Memeo, P.
dc.contributor.author
Meneux, B.
dc.contributor.author
Oesch, Pascal
dc.contributor.author
Porciani, Cristiano
dc.contributor.author
Pozzetti, L.
dc.contributor.author
Renzini, A.
dc.contributor.author
Scaramella, R.
dc.contributor.author
Scarlata, Claudia
dc.date.accessioned
2019-11-22T15:33:48Z
dc.date.available
2017-06-09T17:46:38Z
dc.date.available
2018-03-20T14:07:49Z
dc.date.available
2019-11-22T15:31:08Z
dc.date.available
2019-11-22T15:33:48Z
dc.date.issued
2011
dc.identifier.uri
http://hdl.handle.net/20.500.11850/42430
dc.description.abstract
The contribution of major mergers to galaxy mass assembly along cosmic time is an important ingredient to the galaxy evolution scenario. We aim to measure the evolution of the merger rate for both luminosity/mass selected galaxy samples and investigate its dependence with the local environment. We use a sample of 10644 spectroscopically observed galaxies from the zCOSMOS redshift survey to identify pairs of galaxies destined to merge, using only pairs for which the velocity difference and projected separation of both components with a confirmed spectroscopic redshift indicate a high probability of merging. We have identified 263 spectroscopically confirmed pairs with r_p^{max} = 100 h^{-1} kpc. We find that the density of mergers depends on luminosity/mass, being higher for fainter/less massive galaxies, while the number of mergers a galaxy will experience does not depends significantly on its intrinsic luminosity but rather on its stellar mass. We find that the pair fraction and merger rate increase with local galaxy density, a property observed up to redshift z=1. We find that the dependence of the merger rate on the luminosity or mass of galaxies is already present up to redshifts z=1, and that the evolution of the volumetric merger rate of bright (massive) galaxies is relatively flat with redshift with a mean value of 3*10^{-4} (8*10^{-5} respectively) mergers h^3 Mpc^{-3} Gyr^{-1}. The dependence of the merger rate with environment indicates that dense environments favors major merger events as can be expected from the hierarchical scenario. The environment therefore has a direct impact in shapping-up the mass function and its evolution therefore plays an important role on the mass growth of galaxies along cosmic time.
en_US
dc.language.iso
en
en_US
dc.publisher
Cornell University
en_US
dc.title
The zCOSMOS redshift survey
en_US
dc.type
Working Paper
ethz.title.subtitle
Influence of luminosity, mass and environment on the galaxy merger rate
en_US
ethz.pages.start
1104.5470v1
en_US
ethz.size
17 p.
en_US
ethz.identifier.arxiv
1104.5470
ethz.publication.place
Ithaca, NY
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::03613 - Lilly, Simon / Lilly, Simon
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::03613 - Lilly, Simon / Lilly, Simon
ethz.date.deposited
2017-06-09T17:46:53Z
ethz.source
ECIT
ethz.identifier.importid
imp59364eb9a947312252
ethz.ecitpid
pub:70616
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2017-07-14T18:27:54Z
ethz.rosetta.lastUpdated
2019-11-22T15:34:03Z
ethz.rosetta.versionExported
true
ethz.COinS
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