Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Cherie K Fishlock"'
Autor:
Cherie K Fishlock, Jorge Melendez, Alan Alves-Brito, Chiaki Kobayashi, Poul Nissen, David Yong, Andrew R. Casey, Amanda I. Karakas
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Fishlock, C K, Yong, D, Karakas, A I, Alves Brito, A, Meléndez, J, Nissen, P E, Kobayashi, C & Casey, A R 2017, ' Sc and neutron-capture abundances in Galactic low-and high-alpha field halo stars ', Royal Astronomical Society. Monthly Notices, vol. 466, no. 4, pp. 4672-4682 . https://doi.org/10.1093/mnras/stx047
NASA Astrophysics Data System
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Fishlock, C K, Yong, D, Karakas, A I, Alves Brito, A, Meléndez, J, Nissen, P E, Kobayashi, C & Casey, A R 2017, ' Sc and neutron-capture abundances in Galactic low-and high-alpha field halo stars ', Royal Astronomical Society. Monthly Notices, vol. 466, no. 4, pp. 4672-4682 . https://doi.org/10.1093/mnras/stx047
NASA Astrophysics Data System
We determine relative abundance ratios for the neutron-capture elements Zr, La, Ce, Nd, and Eu for a sample of 27 Galactic dwarf stars with -1.5 < [Fe/H]
Comment: MNRAS in press
Comment: MNRAS in press
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8861fe020474c717083432fefcd90f45
Autor:
Cherie K Fishlock, David Yong, G. S. Da Costa, Kevin C. Schlaufman, Andrew R. Casey, QinQin Yu, Amanda I. Karakas, Stefan Keller, Heather R. Jacobson, Anna Frebel, Alan Alves-Brito
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 443:828-851
We present a detailed analysis of high-resolution, high S/N spectra for 5 Aquarius stream stars observed with the MIKE spectrograph on the Magellan Clay telescope. Our sample represents one third of the 15 known members in the stream. We find the str
Autor:
Amanda I. Karakas, Antonino Milone, David Yong, Wako Aoki, Ian U. Roederer, Anna F. Marino, Luke J. Shingles, Gary S. Da Costa, Cherie K Fishlock, John E. Norris, Frank Grundahl
Publikováno v:
Yong, D, Roederer, I U, Grundahl, F, Da Costa, G S, Karakas, A I, Norris, J E, Aoki, W, Fishlock, C K, Marino, A F, Milone, A P & Shingles, L J 2014, ' Iron and neutron-capture element abundance variations in the globular cluster M2 (NGC 7089) ', Royal Astronomical Society. Monthly Notices, vol. 441, no. 4, pp. 3396-3416 . https://doi.org/10.1093/mnras/stu806
We present CN and CH indices and CaII triplet metallicities for 34 giant stars and chemical abundances for 33 elements in 14 giants in the globular cluster M2. Assuming the program stars are cluster members, our analysis reveals (i) an extreme variat
Autor:
Marco Pignatari, Gary S. Da Costa, John E. Norris, Cherie K Fishlock, Frank Grundahl, David Yong, Alan Alves Brito, Javier Alonso-García, Amanda I. Karakas, Ian U. Roederer, Wako Aoki
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Monthly Notices of the Royal Astronomical Society
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Yong, D, Alves Brito, A, Da Costa, G S, Alonso-García, J, Karakas, A I, Pignatari, M, Roederer, I U, Aoki, W, Fishlock, C K, Grundahl, F & Norris, J E 2014, ' Chemical abundances in bright giants of the globular cluster M62 (NGC 6266) ', Royal Astronomical Society. Monthly Notices, vol. 439, no. 3, pp. 2638-2650 . https://doi.org/10.1093/mnras/stu118
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Monthly Notices of the Royal Astronomical Society
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Yong, D, Alves Brito, A, Da Costa, G S, Alonso-García, J, Karakas, A I, Pignatari, M, Roederer, I U, Aoki, W, Fishlock, C K, Grundahl, F & Norris, J E 2014, ' Chemical abundances in bright giants of the globular cluster M62 (NGC 6266) ', Royal Astronomical Society. Monthly Notices, vol. 439, no. 3, pp. 2638-2650 . https://doi.org/10.1093/mnras/stu118
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
With the exception of Terzan 5, all the Galactic globular clusters that possess significant metallicity spreads, such as omega Cen and M22, are preferentially the more luminous clusters with extended horizontal branches. Here we present radial veloci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc407a58681a0b172f9fb6121718c156
Autor:
Anna F. Marino, Amanda I. Karakas, David Yong, Luke J. Shingles, Gary S. Da Costa, Cherie K Fishlock, Raphael Hirschi
We investigate the enrichment in elements produced by the slow neutron-capture process ($s$-process) in the globular clusters M4 (NGC 6121) and M22 (NGC 6656). Stars in M4 have homogeneous abundances of Fe and neutron-capture elements, but the entire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f73eb4577ffcf3ae443ee5c9d66cc3b9
Calculations from stellar evolutionary models of low- and intermediate-mass asymptotic giant branch (AGB) stars provide predictions of elemental abundances and yields for comparison to observations. However, there are many uncertainties that reduce t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db13ace922bc6cd97f74062d3770bc32
http://arxiv.org/abs/1312.1078
http://arxiv.org/abs/1312.1078
Autor:
Geraint F. Lewis, Annette M. N. Ferguson, J. Veljanoski, Alasdair Mackey, Nial R. Tanvir, Avon Huxor, Alan W. McConnachie, Cherie K Fishlock, Rodrigo A. Ibata, Scott Chapman, Mike Irwin
Using data from the Pan-Andromeda Archaeological Survey (PAndAS), we have discovered four new globular clusters (GCs) associated with the M31 dwarf elliptical (dE) satellites NGC 147 and NGC 185. Three of these are associated with NGC 147 and one wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69a1c7ac55d413061f868a162f133343
http://arxiv.org/abs/1308.3636
http://arxiv.org/abs/1308.3636
Publikováno v:
Monthly Notices of the Royal Astronomical Society.
We present new radial velocities from AAOmega on the Anglo-Australian Telescope for 307 galaxies (b_J < 19.5) in the region of the rich cluster Abell 1386. Consistent with other studies of galaxy clusters that constitute sub-units of superstructures,
Publikováno v:
The Astrophysical Journal. 797:44
We present stellar evolutionary tracks and nucleosynthetic predictions for a grid of stellar models of low- and intermediate-mass asymptotic giant branch (AGB) stars at $Z=0.001$ ([Fe/H]$=-1.2$). The models cover an initial mass range from 1 M$_{\odo
Publikováno v:
Monash University
Scopus-Elsevier
Scopus-Elsevier
Chemical differences in stellar populations are one method to study the formation and evolution of the Galactic halo of the Milky Way. In particular, there are low α-element stars and high αelement stars in the Galactic halo that also show differen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f319b8cd35b10387aefecfa42911cf8b
https://research.monash.edu/en/publications/4a0efd0b-8742-4e8f-9ec8-66a4f2a04ad0
https://research.monash.edu/en/publications/4a0efd0b-8742-4e8f-9ec8-66a4f2a04ad0