Bibcode
Phillips, Siân G.; Schiavon, Ricardo P.; Mackereth, J. Ted; Allende Prieto, Carlos; Anguiano, Borja; Beaton, Rachael L.; Cohen, Roger E.; García-Hernández, D. A.; Geisler, Douglas; Horta, Danny; Jönsson, Henrik; Kisku, Shobhit; Lane, Richard R.; Majewski, Steven R.; Mason, Andrew; Minniti, Dante; Schultheis, Mathias; Taylor, Dominic
Bibliographical reference
Monthly Notices of the Royal Astronomical Society
Advertised on:
3
2022
Citations
6
Refereed citations
6
Description
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.
Related projects
Nucleosynthesis and molecular processes in the late stages of Stellar Evolution
Low- to intermediate-mass (M < 8 solar masses, Ms) stars represent the majority of stars in the Cosmos. They finish their lives on the Asymptotic Giant Branch (AGB) - just before they form planetary nebulae (PNe) - where they experience complex nucleosynthetic and molecular processes. AGB stars are important contributors to the enrichment of the
Domingo Aníbal
García Hernández
Chemical Abundances in Stars
Stellar spectroscopy allows us to determine the properties and chemical compositions of stars. From this information for stars of different ages in the Milky Way, it is possible to reconstruct the chemical evolution of the Galaxy, as well as the origin of the elements heavier than boron, created mainly in stellar interiors. It is also possible to
Carlos
Allende Prieto