Influence of departures from LTE on calcium, titanium, and iron abundance determinations in cool giants of different metallicities
We have performed statistical equilibrium calculations for Ca I–Ca II, Ti I–Ti II, and Fe I–Fe II by taking into account the nonequilibrium line formation conditions (the non-LTE approach) in model atmospheres of giant stars with effective temperatures 4000 K ≤ T eff ≤ 5000 K and metal abundances −4...
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| Veröffentlicht in: | Astronomy letters 2016-09, Vol.42 (9), p.606-615 |
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| container_title | Astronomy letters |
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| creator | Mashonkina, L. I. Sitnova, T. N. Pakhomov, Yu. V. |
| description | We have performed statistical equilibrium calculations for Ca I–Ca II, Ti I–Ti II, and Fe I–Fe II by taking into account the nonequilibrium line formation conditions (the non-LTE approach) in model atmospheres of giant stars with effective temperatures 4000 K ≤
T
eff
≤ 5000 K and metal abundances −4 ≤ [Fe/H] ≤ 0. The dependence of departures from LTE on atmospheric parameters has been analyzed. We present the non-LTE abundance corrections for 28 Ca I lines, 42 Ti I lines, 54 Ti II lines, and 262 Fe I lines and a three-dimensional interpolation code to obtain the non-LTE correction online for an individual line and specified atmospheric parameters. |
| doi_str_mv | 10.1134/S1063773716080028 |
| format | Article |
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T
eff
≤ 5000 K and metal abundances −4 ≤ [Fe/H] ≤ 0. The dependence of departures from LTE on atmospheric parameters has been analyzed. We present the non-LTE abundance corrections for 28 Ca I lines, 42 Ti I lines, 54 Ti II lines, and 262 Fe I lines and a three-dimensional interpolation code to obtain the non-LTE correction online for an individual line and specified atmospheric parameters.</description><identifier>ISSN: 1063-7737</identifier><identifier>EISSN: 1562-6873</identifier><identifier>DOI: 10.1134/S1063773716080028</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Abundance ; Astronomy ; Astrophysics and Astroparticles ; Atmospherics ; Calcium ; Heavy metal content ; Interpolation ; Iron ; Mathematical models ; Observations and Techniques ; Parameters ; Physics ; Physics and Astronomy ; Star & galaxy formation ; Stars & galaxies ; Titanium</subject><ispartof>Astronomy letters, 2016-09, Vol.42 (9), p.606-615</ispartof><rights>Pleiades Publishing, Inc. 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c425t-4964a8e0829e1660166bf09fa188e4d39299827c2a6fd43fa343f40589ac964c3</citedby><cites>FETCH-LOGICAL-c425t-4964a8e0829e1660166bf09fa188e4d39299827c2a6fd43fa343f40589ac964c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1063773716080028$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1063773716080028$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Mashonkina, L. I.</creatorcontrib><creatorcontrib>Sitnova, T. N.</creatorcontrib><creatorcontrib>Pakhomov, Yu. V.</creatorcontrib><title>Influence of departures from LTE on calcium, titanium, and iron abundance determinations in cool giants of different metallicities</title><title>Astronomy letters</title><addtitle>Astron. Lett</addtitle><description>We have performed statistical equilibrium calculations for Ca I–Ca II, Ti I–Ti II, and Fe I–Fe II by taking into account the nonequilibrium line formation conditions (the non-LTE approach) in model atmospheres of giant stars with effective temperatures 4000 K ≤
T
eff
≤ 5000 K and metal abundances −4 ≤ [Fe/H] ≤ 0. The dependence of departures from LTE on atmospheric parameters has been analyzed. We present the non-LTE abundance corrections for 28 Ca I lines, 42 Ti I lines, 54 Ti II lines, and 262 Fe I lines and a three-dimensional interpolation code to obtain the non-LTE correction online for an individual line and specified atmospheric parameters.</description><subject>Abundance</subject><subject>Astronomy</subject><subject>Astrophysics and Astroparticles</subject><subject>Atmospherics</subject><subject>Calcium</subject><subject>Heavy metal content</subject><subject>Interpolation</subject><subject>Iron</subject><subject>Mathematical models</subject><subject>Observations and Techniques</subject><subject>Parameters</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Star & galaxy formation</subject><subject>Stars & galaxies</subject><subject>Titanium</subject><issn>1063-7737</issn><issn>1562-6873</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>GNUQQ</sourceid><recordid>eNqNkb1qHDEURgdjg-21H8CdwE2KTKK_1UhlME68sOAidj3c1VwtMjPSRtIUafPk0XhTBIeAC0kXvnM-ELdpbhj9xJiQn78zqkTXiY4pqinl-qS5YGvFW6U7cVrnGrdLft5c5vxCKTVC0Ivm1ya4ccZgkURHBjxAKnPCTFyKE9k-3ZMYiIXR-nn6SIovEF4nCAPxqWawm8MAiz9gwTT5AMXHkImvXowj2XsIJb-2e-cwYShkwgLj6K0vHvNVc-ZgzHj95101z1_vn-4e2u3jt83dl21rJV-XVholQSPV3CBTitazc9Q4YFqjHIThxmjeWQ7KDVI4EPWSdK0N2KpasWo-HHsPKf6YMZd-8tniOELAOOeeabnWVCjN3oHyzgjZ8QW9fYO-xDmF-pGFolyZjqtKsSNlU8w5oesPyU-QfvaM9ssC-38WWB1-dHJlwx7TX83_lX4DVJycUA</recordid><startdate>20160901</startdate><enddate>20160901</enddate><creator>Mashonkina, L. 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V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c425t-4964a8e0829e1660166bf09fa188e4d39299827c2a6fd43fa343f40589ac964c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Abundance</topic><topic>Astronomy</topic><topic>Astrophysics and Astroparticles</topic><topic>Atmospherics</topic><topic>Calcium</topic><topic>Heavy metal content</topic><topic>Interpolation</topic><topic>Iron</topic><topic>Mathematical models</topic><topic>Observations and Techniques</topic><topic>Parameters</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Star & galaxy formation</topic><topic>Stars & galaxies</topic><topic>Titanium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mashonkina, L. I.</creatorcontrib><creatorcontrib>Sitnova, T. N.</creatorcontrib><creatorcontrib>Pakhomov, Yu. 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T
eff
≤ 5000 K and metal abundances −4 ≤ [Fe/H] ≤ 0. The dependence of departures from LTE on atmospheric parameters has been analyzed. We present the non-LTE abundance corrections for 28 Ca I lines, 42 Ti I lines, 54 Ti II lines, and 262 Fe I lines and a three-dimensional interpolation code to obtain the non-LTE correction online for an individual line and specified atmospheric parameters.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1063773716080028</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Astronomy letters, 2016-09, Vol.42 (9), p.606-615 |
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| subjects | Abundance Astronomy Astrophysics and Astroparticles Atmospherics Calcium Heavy metal content Interpolation Iron Mathematical models Observations and Techniques Parameters Physics Physics and Astronomy Star & galaxy formation Stars & galaxies Titanium |
| title | Influence of departures from LTE on calcium, titanium, and iron abundance determinations in cool giants of different metallicities |
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