PRIMUS: Galaxy Clustering as a Function of Luminosity and Color at 0.2<z<1
We present measurements of the luminosity and color-dependence of galaxy clustering at 0.2
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| creator | Skibba, Ramin A Smith, M Stephen M Coil, Alison L Moustakas, John Aird, James Blanton, Michael R Bray, Aaron D Cool, Richard J Eisenstein, Daniel J Mendez, Alexander J Wong, Kenneth C Zhu, Guangtun |
| description | We present measurements of the luminosity and color-dependence of galaxy clustering at 0.2 |
| doi_str_mv | 10.48550/arxiv.1310.1093 |
| format | Article |
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We quantify the clustering with the redshift-space and projected two-point correlation functions, xi(rp,pi) and wp(rp), using volume-limited samples constructed from a parent sample of over 130,000 galaxies with robust redshifts in seven independent fields covering 9 sq. deg. of sky. We quantify how the scale-dependent clustering amplitude increases with increasing luminosity and redder color, with relatively small errors over large volumes. We find that red galaxies have stronger small-scale (0.1<rp<1 Mpc/h) clustering and steeper correlation functions compared to blue galaxies, as well as a strong color dependent clustering within the red sequence alone. We interpret our measured clustering trends in terms of galaxy bias and obtain values between b_gal=0.9-2.5, quantifying how galaxies are biased tracers of dark matter depending on their luminosity and color. We also interpret the color dependence with mock catalogs, and find that the clustering of blue galaxies is nearly constant with color, while redder galaxies have stronger clustering in the one-halo term due to a higher satellite galaxy fraction. In addition, we measure the evolution of the clustering strength and bias, and we do not detect statistically significant departures from passive evolution. We argue that the luminosity- and color-environment (or halo mass) relations of galaxies have not significantly evolved since z=1. Finally, using jackknife subsampling methods, we find that sampling fluctuations are important and that the COSMOS field is generally an outlier, due to having more overdense structures than other fields; we find that 'cosmic variance' can be a significant source of uncertainty for high-redshift clustering measurements.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1310.1093</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Bias ; Clustering ; Color ; Dark matter ; Dependence ; Galactic evolution ; Galaxies ; Luminosity ; Outliers (statistics) ; Physics - Cosmology and Nongalactic Astrophysics ; Red shift ; Stars & galaxies ; Statistical methods ; Tracers ; Variations</subject><ispartof>arXiv.org, 2014-03</ispartof><rights>2014. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,784,885,27924</link.rule.ids><backlink>$$Uhttps://doi.org/10.1088/0004-637X/784/2/128$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.1310.1093$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Skibba, Ramin A</creatorcontrib><creatorcontrib>Smith, M Stephen M</creatorcontrib><creatorcontrib>Coil, Alison L</creatorcontrib><creatorcontrib>Moustakas, John</creatorcontrib><creatorcontrib>Aird, James</creatorcontrib><creatorcontrib>Blanton, Michael R</creatorcontrib><creatorcontrib>Bray, Aaron D</creatorcontrib><creatorcontrib>Cool, Richard J</creatorcontrib><creatorcontrib>Eisenstein, Daniel J</creatorcontrib><creatorcontrib>Mendez, Alexander J</creatorcontrib><creatorcontrib>Wong, Kenneth C</creatorcontrib><creatorcontrib>Zhu, Guangtun</creatorcontrib><title>PRIMUS: Galaxy Clustering as a Function of Luminosity and Color at 0.2<z<1</title><title>arXiv.org</title><description>We present measurements of the luminosity and color-dependence of galaxy clustering at 0.2<z<1.0 in the PRIsm MUlti-object Survey (PRIMUS). We quantify the clustering with the redshift-space and projected two-point correlation functions, xi(rp,pi) and wp(rp), using volume-limited samples constructed from a parent sample of over 130,000 galaxies with robust redshifts in seven independent fields covering 9 sq. deg. of sky. We quantify how the scale-dependent clustering amplitude increases with increasing luminosity and redder color, with relatively small errors over large volumes. We find that red galaxies have stronger small-scale (0.1<rp<1 Mpc/h) clustering and steeper correlation functions compared to blue galaxies, as well as a strong color dependent clustering within the red sequence alone. We interpret our measured clustering trends in terms of galaxy bias and obtain values between b_gal=0.9-2.5, quantifying how galaxies are biased tracers of dark matter depending on their luminosity and color. We also interpret the color dependence with mock catalogs, and find that the clustering of blue galaxies is nearly constant with color, while redder galaxies have stronger clustering in the one-halo term due to a higher satellite galaxy fraction. In addition, we measure the evolution of the clustering strength and bias, and we do not detect statistically significant departures from passive evolution. We argue that the luminosity- and color-environment (or halo mass) relations of galaxies have not significantly evolved since z=1. Finally, using jackknife subsampling methods, we find that sampling fluctuations are important and that the COSMOS field is generally an outlier, due to having more overdense structures than other fields; we find that 'cosmic variance' can be a significant source of uncertainty for high-redshift clustering measurements.</description><subject>Bias</subject><subject>Clustering</subject><subject>Color</subject><subject>Dark matter</subject><subject>Dependence</subject><subject>Galactic evolution</subject><subject>Galaxies</subject><subject>Luminosity</subject><subject>Outliers (statistics)</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Red shift</subject><subject>Stars & galaxies</subject><subject>Statistical methods</subject><subject>Tracers</subject><subject>Variations</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj0FLw0AQRhdBsNTePcmC59bZnUy6lV4k2FqpKFrPYZJuJCXN1t1EWn-9qfXyzcfwGOYJcaVgFBkiuGW_L79HCruFggmeiZ5GVEMTaX0hBiFsAEDHY02EPfH0-rZ4_ni_k3OueH-QSdWGxvqy_pQcJMtZW-dN6WrpCrlst2XtQtkcJNdrmbjKecmNhJGe_kzVpTgvuAp28D_7YjV7WCWPw-XLfJHcL4dMCrvA2K6ZJkZBDlTkZqzHiFCwyqyNM8ORVoaMRtAG0WacGbIUU1dyKmLsi-vT2T_PdOfLLftDevRNj74dcHMCdt59tTY06ca1vu5eSjWYCIiMQvwFVH9VaQ</recordid><startdate>20140317</startdate><enddate>20140317</enddate><creator>Skibba, Ramin A</creator><creator>Smith, M Stephen M</creator><creator>Coil, Alison L</creator><creator>Moustakas, John</creator><creator>Aird, James</creator><creator>Blanton, Michael R</creator><creator>Bray, Aaron D</creator><creator>Cool, Richard J</creator><creator>Eisenstein, Daniel J</creator><creator>Mendez, Alexander J</creator><creator>Wong, Kenneth C</creator><creator>Zhu, Guangtun</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20140317</creationdate><title>PRIMUS: Galaxy Clustering as a Function of Luminosity and Color at 0.2<z<1</title><author>Skibba, Ramin A ; Smith, M Stephen M ; Coil, Alison L ; Moustakas, John ; Aird, James ; Blanton, Michael R ; Bray, Aaron D ; Cool, Richard J ; Eisenstein, Daniel J ; Mendez, Alexander J ; Wong, Kenneth C ; Zhu, Guangtun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a513-a536eda59810c05fc8727330fa1bee6b8a4218582302833ebab85e565babc5f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Bias</topic><topic>Clustering</topic><topic>Color</topic><topic>Dark matter</topic><topic>Dependence</topic><topic>Galactic evolution</topic><topic>Galaxies</topic><topic>Luminosity</topic><topic>Outliers (statistics)</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><topic>Red shift</topic><topic>Stars & galaxies</topic><topic>Statistical methods</topic><topic>Tracers</topic><topic>Variations</topic><toplevel>online_resources</toplevel><creatorcontrib>Skibba, Ramin A</creatorcontrib><creatorcontrib>Smith, M Stephen M</creatorcontrib><creatorcontrib>Coil, Alison L</creatorcontrib><creatorcontrib>Moustakas, John</creatorcontrib><creatorcontrib>Aird, James</creatorcontrib><creatorcontrib>Blanton, Michael R</creatorcontrib><creatorcontrib>Bray, Aaron D</creatorcontrib><creatorcontrib>Cool, Richard J</creatorcontrib><creatorcontrib>Eisenstein, Daniel J</creatorcontrib><creatorcontrib>Mendez, Alexander J</creatorcontrib><creatorcontrib>Wong, Kenneth C</creatorcontrib><creatorcontrib>Zhu, Guangtun</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Skibba, Ramin A</au><au>Smith, M Stephen M</au><au>Coil, Alison L</au><au>Moustakas, John</au><au>Aird, James</au><au>Blanton, Michael R</au><au>Bray, Aaron D</au><au>Cool, Richard J</au><au>Eisenstein, Daniel J</au><au>Mendez, Alexander J</au><au>Wong, Kenneth C</au><au>Zhu, Guangtun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>PRIMUS: Galaxy Clustering as a Function of Luminosity and Color at 0.2<z<1</atitle><jtitle>arXiv.org</jtitle><date>2014-03-17</date><risdate>2014</risdate><eissn>2331-8422</eissn><abstract>We present measurements of the luminosity and color-dependence of galaxy clustering at 0.2<z<1.0 in the PRIsm MUlti-object Survey (PRIMUS). We quantify the clustering with the redshift-space and projected two-point correlation functions, xi(rp,pi) and wp(rp), using volume-limited samples constructed from a parent sample of over 130,000 galaxies with robust redshifts in seven independent fields covering 9 sq. deg. of sky. We quantify how the scale-dependent clustering amplitude increases with increasing luminosity and redder color, with relatively small errors over large volumes. We find that red galaxies have stronger small-scale (0.1<rp<1 Mpc/h) clustering and steeper correlation functions compared to blue galaxies, as well as a strong color dependent clustering within the red sequence alone. We interpret our measured clustering trends in terms of galaxy bias and obtain values between b_gal=0.9-2.5, quantifying how galaxies are biased tracers of dark matter depending on their luminosity and color. We also interpret the color dependence with mock catalogs, and find that the clustering of blue galaxies is nearly constant with color, while redder galaxies have stronger clustering in the one-halo term due to a higher satellite galaxy fraction. In addition, we measure the evolution of the clustering strength and bias, and we do not detect statistically significant departures from passive evolution. We argue that the luminosity- and color-environment (or halo mass) relations of galaxies have not significantly evolved since z=1. Finally, using jackknife subsampling methods, we find that sampling fluctuations are important and that the COSMOS field is generally an outlier, due to having more overdense structures than other fields; we find that 'cosmic variance' can be a significant source of uncertainty for high-redshift clustering measurements.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1310.1093</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Bias Clustering Color Dark matter Dependence Galactic evolution Galaxies Luminosity Outliers (statistics) Physics - Cosmology and Nongalactic Astrophysics Red shift Stars & galaxies Statistical methods Tracers Variations |
| title | PRIMUS: Galaxy Clustering as a Function of Luminosity and Color at 0.2<z<1 |
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