SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies
We present a study on the stellar age and metallicity distributions for 1105 galaxies using the STARLIGHT software on MaNGA integral field spectra. We derive age and metallicity gradients by fitting straight lines to the radial profiles, and explore their correlations with total stellar mass M*, NUV...
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| creator | Zheng, Zheng Wang, Huiyuan Ge, Junqiang Mao, Shude Cheng, Li Li, Ran Mo, Houjun Goddard, Daniel Bundy, Kevin Li, Hongyu Nair, Preethi Lin, Lihwai Long, R J Riffel, Rogerio Thomas, Daniel Masters, Karen Bizyaev, Dmitry Brownstein, Joel R Zhang, Kai Law, David R Drory, Niv Alexandre Roman Lopes Malanushenko, Olena |
| description | We present a study on the stellar age and metallicity distributions for 1105 galaxies using the STARLIGHT software on MaNGA integral field spectra. We derive age and metallicity gradients by fitting straight lines to the radial profiles, and explore their correlations with total stellar mass M*, NUV-r colour and environments, as identified by both the large scale structure (LSS) type and the local density. We find that the mean age and metallicity gradients are close to zero but slightly negative, which is consistent with the inside-out formation scenario. Within our sample, we find that both the age and metallicity gradients show weak or no correlation with either the LSS type or local density environment. In addition, we also study the environmental dependence of age and metallicity values at the effective radii. The age and metallicity values are highly correlated with M* and NUV-r and are also dependent on LSS type as well as local density. Low-mass galaxies tend to be younger and have lower metallicity in low-density environments while high-mass galaxies are less affected by environment. |
| doi_str_mv | 10.48550/arxiv.1612.01523 |
| format | Article |
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We derive age and metallicity gradients by fitting straight lines to the radial profiles, and explore their correlations with total stellar mass M*, NUV-r colour and environments, as identified by both the large scale structure (LSS) type and the local density. We find that the mean age and metallicity gradients are close to zero but slightly negative, which is consistent with the inside-out formation scenario. Within our sample, we find that both the age and metallicity gradients show weak or no correlation with either the LSS type or local density environment. In addition, we also study the environmental dependence of age and metallicity values at the effective radii. The age and metallicity values are highly correlated with M* and NUV-r and are also dependent on LSS type as well as local density. Low-mass galaxies tend to be younger and have lower metallicity in low-density environments while high-mass galaxies are less affected by environment.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1612.01523</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Age ; Correlation ; Density ; Dependence ; Galaxies ; Metallicity ; Physics - Astrophysics of Galaxies ; Stellar age ; Stellar mass ; Straight line fitting ; Straight lines</subject><ispartof>arXiv.org, 2016-12</ispartof><rights>2016. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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Low-mass galaxies tend to be younger and have lower metallicity in low-density environments while high-mass galaxies are less affected by environment.</description><subject>Age</subject><subject>Correlation</subject><subject>Density</subject><subject>Dependence</subject><subject>Galaxies</subject><subject>Metallicity</subject><subject>Physics - Astrophysics of Galaxies</subject><subject>Stellar age</subject><subject>Stellar mass</subject><subject>Straight line fitting</subject><subject>Straight lines</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</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>eNotkE1Lw0AURQdBsNT-AFcOuE6dz2TirlSthaqLiNvwknkpU9JJnUlL---NrasHl3Mvj0PIHWdTZbRmjxCO7jDlKRdTxrWQV2QkpOSJUULckEmMG8aYSDOhtRyRunguimT5Td_hYzF7ougPLnR-i76Hllrcobfoa6RdQ2OPbQuBwhopeEu3ODCtq11_ousA1g2lSJ2nHiFUQwYtHB3GW3LdQBtx8n_HpHh9-Zq_JavPxXI-WyWghUkQ8oxnlaq5zIxWuWGZRcaFaRqUQldKV1zotAKhZJ5DY2vJa22lbVSTcZBjcn9ZPQsod8FtIZzKPxHlWcRAPFyIXeh-9hj7ctPtgx9eKgUzLOU8S438BRzYYFo</recordid><startdate>20161205</startdate><enddate>20161205</enddate><creator>Zheng, Zheng</creator><creator>Wang, Huiyuan</creator><creator>Ge, Junqiang</creator><creator>Mao, Shude</creator><creator>Cheng, Li</creator><creator>Li, Ran</creator><creator>Mo, Houjun</creator><creator>Goddard, Daniel</creator><creator>Bundy, Kevin</creator><creator>Li, Hongyu</creator><creator>Nair, Preethi</creator><creator>Lin, Lihwai</creator><creator>Long, R J</creator><creator>Riffel, Rogerio</creator><creator>Thomas, Daniel</creator><creator>Masters, Karen</creator><creator>Bizyaev, Dmitry</creator><creator>Brownstein, Joel R</creator><creator>Zhang, Kai</creator><creator>Law, David R</creator><creator>Drory, Niv</creator><creator>Alexandre Roman Lopes</creator><creator>Malanushenko, Olena</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>20161205</creationdate><title>SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies</title><author>Zheng, Zheng ; Wang, Huiyuan ; Ge, Junqiang ; Mao, Shude ; Cheng, Li ; Li, Ran ; Mo, Houjun ; Goddard, Daniel ; Bundy, Kevin ; Li, Hongyu ; Nair, Preethi ; Lin, Lihwai ; Long, R J ; Riffel, Rogerio ; Thomas, Daniel ; Masters, Karen ; Bizyaev, Dmitry ; Brownstein, Joel R ; Zhang, Kai ; Law, David R ; Drory, Niv ; Alexandre Roman Lopes ; Malanushenko, Olena</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a528-ea9717b4c1378549807de0128ffe325b45b1256ba24399afdc31c5d3df4f71a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Age</topic><topic>Correlation</topic><topic>Density</topic><topic>Dependence</topic><topic>Galaxies</topic><topic>Metallicity</topic><topic>Physics - Astrophysics of Galaxies</topic><topic>Stellar age</topic><topic>Stellar mass</topic><topic>Straight line fitting</topic><topic>Straight lines</topic><toplevel>online_resources</toplevel><creatorcontrib>Zheng, Zheng</creatorcontrib><creatorcontrib>Wang, Huiyuan</creatorcontrib><creatorcontrib>Ge, Junqiang</creatorcontrib><creatorcontrib>Mao, Shude</creatorcontrib><creatorcontrib>Cheng, Li</creatorcontrib><creatorcontrib>Li, Ran</creatorcontrib><creatorcontrib>Mo, Houjun</creatorcontrib><creatorcontrib>Goddard, Daniel</creatorcontrib><creatorcontrib>Bundy, Kevin</creatorcontrib><creatorcontrib>Li, Hongyu</creatorcontrib><creatorcontrib>Nair, Preethi</creatorcontrib><creatorcontrib>Lin, Lihwai</creatorcontrib><creatorcontrib>Long, R J</creatorcontrib><creatorcontrib>Riffel, Rogerio</creatorcontrib><creatorcontrib>Thomas, Daniel</creatorcontrib><creatorcontrib>Masters, Karen</creatorcontrib><creatorcontrib>Bizyaev, Dmitry</creatorcontrib><creatorcontrib>Brownstein, Joel R</creatorcontrib><creatorcontrib>Zhang, Kai</creatorcontrib><creatorcontrib>Law, David R</creatorcontrib><creatorcontrib>Drory, Niv</creatorcontrib><creatorcontrib>Alexandre Roman Lopes</creatorcontrib><creatorcontrib>Malanushenko, Olena</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>Access via ProQuest (Open Access)</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>Zheng, Zheng</au><au>Wang, Huiyuan</au><au>Ge, Junqiang</au><au>Mao, Shude</au><au>Cheng, Li</au><au>Li, Ran</au><au>Mo, Houjun</au><au>Goddard, Daniel</au><au>Bundy, Kevin</au><au>Li, Hongyu</au><au>Nair, Preethi</au><au>Lin, Lihwai</au><au>Long, R J</au><au>Riffel, Rogerio</au><au>Thomas, Daniel</au><au>Masters, Karen</au><au>Bizyaev, Dmitry</au><au>Brownstein, Joel R</au><au>Zhang, Kai</au><au>Law, David R</au><au>Drory, Niv</au><au>Alexandre Roman Lopes</au><au>Malanushenko, Olena</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies</atitle><jtitle>arXiv.org</jtitle><date>2016-12-05</date><risdate>2016</risdate><eissn>2331-8422</eissn><abstract>We present a study on the stellar age and metallicity distributions for 1105 galaxies using the STARLIGHT software on MaNGA integral field spectra. We derive age and metallicity gradients by fitting straight lines to the radial profiles, and explore their correlations with total stellar mass M*, NUV-r colour and environments, as identified by both the large scale structure (LSS) type and the local density. We find that the mean age and metallicity gradients are close to zero but slightly negative, which is consistent with the inside-out formation scenario. Within our sample, we find that both the age and metallicity gradients show weak or no correlation with either the LSS type or local density environment. In addition, we also study the environmental dependence of age and metallicity values at the effective radii. The age and metallicity values are highly correlated with M* and NUV-r and are also dependent on LSS type as well as local density. Low-mass galaxies tend to be younger and have lower metallicity in low-density environments while high-mass galaxies are less affected by environment.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1612.01523</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Age Correlation Density Dependence Galaxies Metallicity Physics - Astrophysics of Galaxies Stellar age Stellar mass Straight line fitting Straight lines |
| title | SDSS-IV MaNGA: environmental dependence of stellar age and metallicity gradients in nearby galaxies |
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