Release 11.12 ("Hergest Ridge")
Release 11.12 ("Hergest Ridge")
| Article ID: gc507 | |
| Author | Niu, Ping; Cui, Wenyuan; Zhang, Bo; Xie, Geying |
| Title | Astrophysical Origins for the Unusual Chemical Abundance of the Globular Cluster Palomar 1 |
| Journal | Publications of the Astronomical Society of the Pacific, Volume 127, issue 947, pp.51-57 |
| Year of publication | 2015 (on gclusters from 2015-12-17 10:54:02 ) |
| Abstract | Unusual elemental abundances in globular cluster Palomar 1 (Pal 1) could provide important information for us to study the relation between the globular cluster and our Galaxy. In this work, we study the abundances of alpha elements, Fe-peak elements, and neutron-capture elements in Pal 1. We found that the abundances of the SNe Ia and main s-process components of Pal 1 are larger than those of the disk stars and the abundances of the primary component of Pal 1 are smaller than those of the disk stars with similar metallicity. The Fe abundances of Pal 1 and the disk stars mainly originate from the SNe Ia and the primary component, respectively. (...) Our calculated results imply that the unusual abundances of Pal could be explained by the top-light IMF for Pal 1's progenitor-system. |
| Also available at: | http://arxiv.org/abs/1511.05313 |
| Tags | Pal 1 |
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