1. The galaxy-halo connection from a joint lensing, clustering and abundance analysis in the CFHTLenS/VIPERS field
- Author
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C. Bonnett, Hendrik Hildebrandt, Liping Fu, P. Hudelot, Martin Kilbinger, H. J. McCracken, E. Semboloni, Alexander Fritz, Enzo Branchini, Michael J. Hudson, Lauro Moscardini, O. Ilbert, Barnaby Rowe, Henk Hoekstra, Tim Schrabback, E. van Uitert, Marco Scodeggio, Catherine Heymans, Konrad Kuijken, Thomas Erben, Yannick Mellier, L. van Waerbeke, Thomas D. Kitching, I. Davidzon, Jean Coupon, Luigi Guzzo, T. Moutard, B. Garilli, Stéphane Arnouts, Lance Miller, G. De Lucia, O. Le Fevre, Alexie Leauthaud, Malin Velander, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Canada-France-Hawaii Telescope Corporation (CFHT), National Research Council of Canada (NRC)-Centre National de la Recherche Scientifique (CNRS)-University of Hawai'i [Honolulu] (UH), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Institut Bisontin en Sciences Fondamentales (IBSF), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Leiden Observatory [Leiden], Universiteit Leiden [Leiden], INAF- Milano, Istituto Nazionale di Astrofisica (INAF), California Institute of Technology (CALTECH), Department of Astronomy, Stanford University, European Project: 240672,EC:FP7:ERC,ERC-2009-StG,COGS(2010), European Project: 240185,EC:FP7:ERC,ERC-2009-StG,FORCE(2010), European Project: 279396,EC:FP7:ERC,ERC-2011-StG_20101014,ADULT(2012), European Project: 036133,DUEL, Coupon, J., Arnouts, S., van Waerbeke, L., Moutard, T., Ilbert, O., van Uitert, E., Erben, T., Garilli, B., Guzzo, L., Heymans, C., Hildebrandt, H., Hoekstra, H., Kilbinger, M., Kitching, T., Mellier, Y., Miller, L., Scodeggio, M., Bonnett, C., Branchini, ENZO FRANCO, Davidzon, I., De Lucia, G., Fritz, A., Fu, L., Hudelot, P., Hudson, M. J., Kuijken, K., Leauthaud, A., Le Fevre, O., Mccracken, H. J., Moscardini, L., Rowe, B. T. P., Schrabback, T., Semboloni, E., Velander, M., Universiteit Leiden, and Branchini, E.
- Subjects
Initial mass function ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Stellar mass ,Hubble Deep Field ,Dark matter ,FOS: Physical sciences ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,gravitational lensing: weak, galaxies: clusters: general, cosmology: observations, dark matter ,01 natural sciences ,Halo occupation distribution ,Gravitational lensing: weak ,0103 physical sciences ,Satellite galaxy ,010303 astronomy & astrophysics ,Galaxy cluster ,Astrophysics::Galaxy Astrophysics ,Physics ,010308 nuclear & particles physics ,Cosmology: observations ,Astronomy ,Astronomy and Astrophysics ,Galaxy ,Space and Planetary Science ,Galaxies: clusters: general ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We present new constraints on the relationship between galaxies and their host dark matter halos, measured from the location of the peak of the stellar-to-halo mass ratio (SHMR), up to the most massive galaxy clusters at redshift $z\sim0.8$ and over a volume of nearly 0.1~Gpc$^3$. We use a unique combination of deep observations in the CFHTLenS/VIPERS field from the near-UV to the near-IR, supplemented by $\sim60\,000$ secure spectroscopic redshifts, analysing galaxy clustering, galaxy-galaxy lensing and the stellar mass function. We interpret our measurements within the halo occupation distribution (HOD) framework, separating the contributions from central and satellite galaxies. We find that the SHMR for the central galaxies peaks at $M_{\rm h, peak} = 1.9^{+0.2}_{-0.1}\times10^{12} M_{\odot}$ with an amplitude of $0.025$, which decreases to $\sim0.001$ for massive halos ($M_{\rm h} > 10^{14} M_{\odot}$). Compared to central galaxies only, the total SHMR (including satellites) is boosted by a factor 10 in the high-mass regime (cluster-size halos), a result consistent with cluster analyses from the literature based on fully independent methods. After properly accounting for differences in modelling, we have compared our results with a large number of results from the literature up to $z=1$: we find good general agreement, independently of the method used, within the typical stellar-mass systematic errors at low to intermediate mass (${M}_{\star} < 10^{11} M_{\odot}$) and the statistical errors above. We have also compared our SHMR results to semi-analytic simulations and found that the SHMR is tilted compared to our measurements in such a way that they over- (under-) predict star formation efficiency in central (satellite) galaxies., 31 pages, 18 figures, 4 table. Accepted for publication in MNRAS. Online material available at http://www.cfhtlens.org
- Published
- 2015