APOGEE chemical abundances of globular cluster giants in the inner Galaxy

被引：73

作者：

Schiavon, Ricardo P. ^{[1
]}

Johnson, Jennifer A. ^{[2
]}

Frinchaboy, Peter M. ^{[3
]}

Zasowski, Gail ^{[4
]}

Meszaros, Szabolcs ^{[5
]}

Garcia-Hernandez, D. A. ^{[6
,7
]}

Cohen, Roger E. ^{[8
]}

Tang, Baitian ^{[8
]}

Villanova, Sandro ^{[8
]}

Geisler, Douglas ^{[8
]}

Beers, Timothy C. ^{[9
]}

Fernandez-Trincado, J. G. ^{[10
]}

Garcia Perez, Ana E. ^{[11
]}

Lucatello, Sara ^{[12
]}

Majewski, Steven R. ^{[11
]}

Martell, Sarah L. ^{[13
]}

O'Connell, Robert W.

Allende Prieto, Carlos ^{[6
,7
]}

Bizyaev, Dmitry ^{[14
,15
]}

Carrera, Ricardo ^{[6
,7
]}

Lane, Richard R. ^{[16
]}

Malanushenko, Elena ^{[14
]}

Malanushenko, Viktor ^{[14
]}

Munoz, Ricardo R. ^{[17
]}

Nitschelm, Christian ^{[18
]}

Oravetz, Daniel ^{[14
]}

Pan, Kaike ^{[14
]}

Roman-Lopes, Alexandre ^{[19
]}

Schultheis, Matthias ^{[20
]}

Simmons, Audrey ^{[14
]}

机构：

[1] Liverpool John Moores Univ, Astrophys Res Inst, 146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England

[2] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

[3] Texas Christian Univ, Ft Worth, Ft Worth, TX 76129 USA

[4] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[5] ELTE Gothard Astrophys Observ, Szent Imre Herceg St 112, H-9704 Szombathely, Hungary

[6] Inst Astrofis Canarias, E-38205 San Cristobal la Laguna, Spain

[7] Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain

[8] Univ Concepcion, Dept Astron, Concepcion, Chile

[9] Notre Dame Univ, JINA Ctr Origin Elements, Dept Phys, Notre Dame, IN 46530 USA

[10] Univ Franche Comte, CNRS UMR6213, Inst Utinam, OSU THETA Franche Comte Bourgogne,Observ Besancon, F-25010 Besancon, France

[11] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA

[12] Astron Observ Padova, INAF, Vicolo Osservatorio 5, I-35122 Padua, Italy

[13] Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia

[14] New Mexico State Univ, Apache Point Observ, POB 59, Sunspot, NM 88349 USA

[15] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia

[16] Pontificia Univ Catolica Chile, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile

[17] Univ Chile, Dept Astron, Camino Obser 1515, Santiago, Chile

[18] Univ Antofagasta, Unidad Astron, Avenida Angamos 601, Antofagasta 1270300, Chile

[19] Univ La Serena, Fac Ciencias, Dept Fis, Cisternas 1200, La Serena, Chile

[20] Univ Nice Sophia Antipolis, CNRS, Observ Cote dAzur, UMR 7293,Lab Lagrange, BP 4229, F-06304 Nice 4, France

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2017年 / 466卷 / 01期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

stars: abundances; Galaxy: bulge; globular clusters: general; RESOLUTION INFRARED-SPECTRA; HORIZONTAL-BRANCH STARS; UV LEGACY SURVEY; TERZAN; 5; SELF-ENRICHMENT; GALACTIC BULGE; MILKY-WAY; MASS-LOSS; METAL; TELESCOPE;

D O I：

10.1093/mnras/stw3093

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report chemical abundances obtained by Sloan Digital Sky Survey (SDSS)-III/Apache Point Observatory Galactic Evolution Experiment for giant stars in five globular clusters located within 2.2 kpc of the Galactic Centre. We detect the presence of multiple stellar populations in four of those clusters (NGC 6553, NGC 6528, Terzan 5 and Palomar 6) and find strong evidence for their presence in NGC 6522. All clusters with a large enough sample present a significant spread in the abundances of N, C, Na and Al, with the usual correlations and anticorrelations between various abundances seen in other globular clusters. Our results provide important quantitative constraints on theoretical models for self-enrichment of globular clusters, by testing their predictions for the dependence of yields of elements such as Na, N, C and Al on metallicity. They also confirm that, under the assumption that field N-rich stars originate from globular cluster destruction, they can be used as tracers of their parental systems in the high-metallicity regime.

引用

页码：1010 / 1018

页数：9

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