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Galaxy And Mass Assembly (GAMA) : the galaxy luminosity function within the cosmic web
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dc.contributor.author | Eardley, E. | |
dc.contributor.author | Peacock, J. A. | |
dc.contributor.author | McNaught-Roberts, T. | |
dc.contributor.author | Heymans, C. | |
dc.contributor.author | Norberg, P. | |
dc.contributor.author | Alpaslan, M. | |
dc.contributor.author | Baldry, I. | |
dc.contributor.author | Bland-Hawthorn, J. | |
dc.contributor.author | Brough, S. | |
dc.contributor.author | Cluver, M. E. | |
dc.contributor.author | Driver, S. P. | |
dc.contributor.author | Farrow, D. J. | |
dc.contributor.author | Liske, J. | |
dc.contributor.author | Loveday, J. | |
dc.contributor.author | Robotham, A. S. G. | |
dc.date.accessioned | 2015-04-24T12:01:04Z | |
dc.date.available | 2015-04-24T12:01:04Z | |
dc.date.issued | 2015-04-21 | |
dc.identifier | 183280165 | |
dc.identifier | 4696effb-9362-43b1-8c9c-bc34d0a62c0e | |
dc.identifier | 000351529500054 | |
dc.identifier | 84940114286 | |
dc.identifier | 000351529500054 | |
dc.identifier.citation | Eardley , E , Peacock , J A , McNaught-Roberts , T , Heymans , C , Norberg , P , Alpaslan , M , Baldry , I , Bland-Hawthorn , J , Brough , S , Cluver , M E , Driver , S P , Farrow , D J , Liske , J , Loveday , J & Robotham , A S G 2015 , ' Galaxy And Mass Assembly (GAMA) : the galaxy luminosity function within the cosmic web ' , Monthly Notices of the Royal Astronomical Society , vol. 448 , no. 4 , pp. 3665-3678 . https://doi.org/10.1093/mnras/stv237 | en |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | https://hdl.handle.net/10023/6574 | |
dc.description | EE acknowledges support from the Science and Technology Facilities Council. TMR acknowledges support from a ERC Starting Grant (DEGAS-259586). CH acknowledges support from the ERC under the EC FP7 grant number 240185. PN acknowledges the support of the Royal Society through the award of a University Research Fellowship and the ERC, through receipt of a Starting Grant (DEGAS- 259586). | en |
dc.description.abstract | We investigate the dependence of the galaxy luminosity function on geometric environment within the Galaxy And Mass Assembly (GAMA) survey. The tidal tensor prescription, based on the Hessian of the pseudo-gravitational potential, is used to classify the cosmic web and define the geometric environments: for a given smoothing scale, we classify every position of the surveyed region, 0.04 < z < 0.26, as either a void, a sheet, a filament or a knot. We consider how to choose appropriate thresholds in the eigenvalues of the Hessian in order to partition the galaxies approximately evenly between environments. We find a significant variation in the luminosity function of galaxies between different geometric environments; the normalization, characterized by phi* in a Schechter function fit, increases by an order of magnitude from voids to knots. The turnover magnitude, characterized by M*, brightens by approximately 0.5 mag from voids to knots. However, we show that the observed modulation can be entirely attributed to the indirect local-density dependence. We therefore find no evidence of a direct influence of the cosmic web on the galaxy luminosity function. | |
dc.format.extent | 14 | |
dc.format.extent | 3629811 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.subject | Surveys | en |
dc.subject | Galaxies: luminosity function, mass function | en |
dc.subject | Cosmology: observations | en |
dc.subject | Large-scale structure of Universe | en |
dc.subject | Dark-matter Haloes | en |
dc.subject | Digital Sky Survey | en |
dc.subject | Redshift survey | en |
dc.subject | Star-formation | en |
dc.subject | Environment | en |
dc.subject | Dependence | en |
dc.subject | Evolution | en |
dc.subject | Classification | en |
dc.subject | Statistics | en |
dc.subject | Filaments | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | 3rd-NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Galaxy And Mass Assembly (GAMA) : the galaxy luminosity function within the cosmic web | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1093/mnras/stv237 | |
dc.description.status | Peer reviewed | en |
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