APOGEE detection of N-rich stars in the tidal tails of Palomar 5Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA..
Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA.;Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08544 USA..
Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA..
Inst Astrofis Canarias IAC, E-38205 San Cristobal la Laguna, Spain.;Univ La Laguna ULL, Dept Astrofis, E-38206 San Cristobal la Laguna, Spain..
Univ Concepcion, Dept Astron, Casilla 160-C, Concepcion, Chile.;Univ La Serena, Inst Invest Multidisciplinario Ciencia & Tecnol, Ave Raul Bitran S-N, La Serena, Chile.;Univ La Serena, Fac Ciencias, Dept Astron, Av Juan Cisternas 1200, La Serena, Chile..
Liverpool John Moores Univ, Astrophys Res Inst, 146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England..
Liverpool John Moores Univ, Astrophys Res Inst, 146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England..
Univ Atacama, Inst Astron & Ciencias Planetarias Atacama, Copayapu 485, Copiapo, Chile..
Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA..
Liverpool John Moores Univ, Astrophys Res Inst, 146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England..
Univ Andres Bello, Dept Ciencias Fis, Fernandez Concha 700 Las Condes, Santiago, Chile.;Vatican Observ, I-00120 Vatican City V, Vatican..
Univ Cote dAzur, Observ Cote dAzur, Lagrange Lab, CNRS, Observ Bd,CS 34229, F-06304 Nice 4, France..
Liverpool John Moores Univ, Astrophys Res Inst, 146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England..
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2022 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 510, no 3, p. 3727-3733Article in journal (Refereed) Published
Abstract [en]
Recent results from chemical tagging studies using Apache Point Observatory Galactic Evolution Experiment data suggest a strong link between the chemical abundance patterns of stars found within globular clusters (GC), and chemically peculiar populations in the Galactic halo field. In this paper, we analyse the chemical compositions of stars within the cluster body and tidal streams of Palomar 5, a GC that is being tidally disrupted by interaction with the Galactic gravitational potential. We report the identification of nitrogen-rich (N-rich) stars both within and beyond the tidal radius of Palomar 5, with the latter being clearly aligned with the cluster tidal streams; this acts as confirmation that N-rich stars are lost to the Galactic halo from GCs, and provides support to the hypothesis that field N-rich stars identified by various groups have a GC origin.
Place, publisher, year, edition, pages
Oxford University Press, 2022. Vol. 510, no 3, p. 3727-3733
Keywords [en]
Globular Clusters
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:mau:diva-50448DOI: 10.1093/mnras/stab3532ISI: 000749577000041Scopus ID: 2-s2.0-85129507431OAI: oai:DiVA.org:mau-50448DiVA, id: diva2:1642547
2022-03-072022-03-072024-02-05Bibliographically approved