High Redshift Galaxy Populations and their Descendants TeX Export

@article{citeulike:3338546, abstract = {We study three high-redshift galaxies: Lyman break galaxies at z\~{}3 (LBGs), optically selected star-forming galaxies at z\~{}2 (BXs), and distant red galaxies at z\~{}2 (DRGs).Our galaxy formation model simultaneously reproduce the abundances, the redshift distributions and the clustering of all three observed populations. The star formation rates (SFRs) of model LBGs and BXs are lower than those quoted for the real samples, reflecting different initial mass functions and scatter in model dust properties. About 85\% of model galaxies selected as DRGs are star-forming, with SFRs ranging up to \$\sim10^2M\_\odot\$/yr. Model LBGs, BXs and DRGs together account for less than half of all star formation over the range 1.5\<z\<3.2. Model BXs have metallicities which agree roughly with observation, but model LBGs are only slightly more metal-poor, in disagreement with recent observational results. The model galaxies are predominantly disk-dominated. About 30\% of model galaxies with \$M\>10^{11}M\_\odot\$ are classified as LBGs or BXs at the relevant redshifts, while 65\% are classified as DRGs. Almost all model LBGs and BXs are the central galaxies, but about a quarter of DRGs are satellites. Half of all LBG descendants at z=2 would be identified as BX's, but very few as DRGs. Clustering increases with decreasing redshift for descendants of all three populations, becoming stronger than that of \$L^*\$ galaxies by z=0, when many have become satellite galaxies. Their stellar mass growth is dominated by star formation until z\~{}1 and thereafter by mergers. Most LBGs and DRGs end up as red ellipticals, while BXs have a more varied fate. 99\% of local galaxies with \$M\>10^{11.5}M\_\odot\$ are predicted to have at least one LBG/BX/DRG progenitor, and over 70\% above \$10^{11}M\_\odot\$. (abbreviated)}, archivePrefix = {arXiv}, author = {Guo, Qi and White, Simon D. M.}, citeulike-article-id = {3338546}, citeulike-linkout-0 = {http://arxiv.org/abs/0809.4259}, citeulike-linkout-1 = {http://arxiv.org/pdf/0809.4259}, day = {25}, eprint = {0809.4259}, keywords = {evolution, galaxy, high-redshift}, month = {Sep}, posted-at = {2008-09-26 03:15:56}, priority = {2}, title = {High Redshift Galaxy Populations and their Descendants}, url = {http://arxiv.org/abs/0809.4259}, year = {2008} }

TY - JOUR ID - citeulike:3338546 L3 - citeulike-article-id:3338546 N2 - We study three high-redshift galaxies: Lyman break galaxies at z~3 (LBGs), optically selected star-forming galaxies at z~2 (BXs), and distant red galaxies at z~2 (DRGs).Our galaxy formation model simultaneously reproduce the abundances, the redshift distributions and the clustering of all three observed populations. The star formation rates (SFRs) of model LBGs and BXs are lower than those quoted for the real samples, reflecting different initial mass functions and scatter in model dust properties. About 85% of model galaxies selected as DRGs are star-forming, with SFRs ranging up to $\sim10^2M_\odot$/yr. Model LBGs, BXs and DRGs together account for less than half of all star formation over the range 1.5<z<3.2. Model BXs have metallicities which agree roughly with observation, but model LBGs are only slightly more metal-poor, in disagreement with recent observational results. The model galaxies are predominantly disk-dominated. About 30% of model galaxies with $M>10^{11}M_\odot$ are classified as LBGs or BXs at the relevant redshifts, while 65% are classified as DRGs. Almost all model LBGs and BXs are the central galaxies, but about a quarter of DRGs are satellites. Half of all LBG descendants at z=2 would be identified as BX's, but very few as DRGs. Clustering increases with decreasing redshift for descendants of all three populations, becoming stronger than that of $L^*$ galaxies by z=0, when many have become satellite galaxies. Their stellar mass growth is dominated by star formation until z~1 and thereafter by mergers. Most LBGs and DRGs end up as red ellipticals, while BXs have a more varied fate. 99% of local galaxies with $M>10^{11.5}M_\odot$ are predicted to have at least one LBG/BX/DRG progenitor, and over 70% above $10^{11}M_\odot$. (abbreviated) TI - High Redshift Galaxy Populations and their Descendants KW - evolution KW - galaxy KW - high-redshift AU - Guo, Qi AU - White, Simon PY - 2008/Sep/25/ UR - http://arxiv.org/abs/0809.4259 ER -