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Results 1 - 20 of 20

A distinct halo population revealed from 3D non-LTE magnesium abundances
- Volume 19, Issue 21 - article #2
- T. Matsuno, A. M. Amarsi, M. Carlos, P. E. Nissen
- https://arxiv.org/abs/2405.13486
3D non-LTE iron abundances in FG-type dwarfs
- Volume 17, Issue 48 - article #8
- A. M. Amarsi, S. Liljegren, P. E. Nissen
- Astronomy & Astrophysics
- https://www.aanda.org/10.1051/0004-6361/202244542
3D non-LTE iron abundances in FG-type dwarfs. (arXiv:2209.13449v1 [astro-ph.SR])
- Volume 17, Issue 38 - article #1
- A. M. Amarsi, S. Liljegren, P. E. Nissen
- http://arxiv.org/abs/2209.13449
High-precision abundances of elements in solar-type stars. Evidence of two distinct sequences in abundance-age relations. (arXiv:2006.06013v1 [astro-ph.SR])
- Volume 15, Issue 24 - article #9
- P. E. Nissen, J. Christensen-Dalsgaard, J. R. Mosumgaard, V. Silva Aguirre, E. Spitoni, K. Verma. (Stellar Astrophysics Centre, Department of Physics, Astronomy, Aarhus University, Denmark.)
- http://arxiv.org/abs/2006.06013
Carbon, oxygen, and iron abundances in disk and halo stars
- Volume 14, Issue 39 - article #11
- A. M. Amarsi, P. E. Nissen, Ã. SkÃºladÃ³ttir
- Astronomy & Astrophysics
- http://feedproxy.google.com/~r/edp_aa/~3/DwS5xVkIfCA/201936265
Carbon and oxygen in metal-poor halo stars⋆
- Volume 14, Issue 5 - article #2
- A. M. Amarsi, P. E. Nissen, M. Asplund, K. Lind, P. S. Barklem
- Astronomy & Astrophysics
- http://feedproxy.google.com/~r/edp_aa/~3/QTipYx6aF8Y/201834480
Carbon and oxygen in metal-poor halo stars. (arXiv:1901.03592v1 [astro-ph.SR])
- Volume 14, Issue 3 - article #1
- A. M. Amarsi, P. E. Nissen, M. Asplund, K. Lind, P. S. Barklem
- http://arxiv.org/abs/1901.03592
Sun-like stars unlike the Sun: Clues for chemical anomaliesof cool stars
- Volume 12, Issue 19 - article #6
- V. Adibekyan, E. Delgado-Mena, S. Feltzing, J. I. GonzÃ¡lez HernÃ¡ndez, N. R. Hinkel, A. J. Korn, M. Asplund, P. G. Beck, M. Deal, B. Gustafsson, S. Honda, K. Lind, P. E. Nissen, L. Spina
- John Wiley & Sons, Inc.
- http://onlinelibrary.wiley.com/resolve/doi?DOI=10.1002%2Fasna.201713315
High-precision abundances of Sc, Mn, Cu, and Ba in solar twins. Trends of element ratios with stellar age. (arXiv:1606.08399v1 [astro-ph.SR])
- Volume 11, Issue 27 - article #6
- P. E. Nissen
- http://arxiv.org/abs/1606.08399
Red Giant Stars from Sloan Digital Sky Survey. I. The General Field
- Volume 9, Issue 23 - article #77
- Y. Q. Chen, G. Zhao, K. Carrell, J. K. Zhao, K. F. Tan, P. E. Nissen, and P. Wei
- The Astrophysical Journal - Volume: 795, Issue: 1
- View article PDF (1.28 MB)
Carbon and oxygen abundances in stellar populations
- Volume 9, Issue 22 - article #59
- P. E. Nissen, Y. Q. Chen, L. Carigi, W. J. Schuster and G. Zhao
- Astronomy and Astrophysics - Volume: 568, Issue: August 2014
- http://dx.doi.org/10.1051/0004-6361/201424184
  Abstract Full HTML PDF (941.6 KB) ePUB (2.056 MB) References Online Material Tables at CDS NASA ADS Abstract Service
Three Ancient Halo Subgiants: Precise Parallaxes, Compositions, Ages, and Implications for Globular Clusters
- Volume 9, Issue 22 - article #81
- Don A. VandenBerg, Howard E. Bond, Edmund P. Nelan, P. E. Nissen, Gail H. Schaefer, and Dianne Harmer
- The Astrophysical Journal - Volume: 792, Issue: 2
- View article PDF (1.47 MB)
Three Ancient Halo Subgiants: Precise Parallaxes, Compositions, Ages, and Implications for Globular Clusters
- Volume 9, Issue 21 - article #9
- Don A. VandenBerg, Howard E. Bond, Edmund P. Nelan, P. E. Nissen, Gail H. Schaefer, Dianne Harmer
- arXiv.org - Astrophysics - Volume: 2014, Issue: 1 Aug
- arXiv:1407.7591 [pdf, ps, other]
Strömgren Survey for Asteroseismology and Galactic Archaeology: Let the SAGA Begin
- Volume 9, Issue 20 - article #185
- L. Casagrande, V. Silva Aguirre, D. Stello, D. Huber, A. M. Serenelli, S. Cassisi, A. Dotter, A. P. Milone, S. Hodgkin, A. F. Marino, M. N. Lund, A. Pietrinferni, M. Asplund, S. Feltzing, C. Flynn, F. Grundahl, P. E. Nissen, R. SchÃ¶nrich, K. J. Schlesinger, and W. Wang
- The Astrophysical Journal - Volume: 787, Issue: 2
- View article PDF (5.52 MB)
Two distinct halo populations in the solar neighborhood - IV. Lithium abundances
- Volume 7, Issue 51 - article #43
- P. E. Nissen and W. J. Schuster
- Astronomy and Astrophysics - Volume: 543, Issue: July 2012
- http://dx.doi.org/10.1051/0004-6361/201219342
  Abstract | Full HTML | PDF (334.2 KB) | References | Online Material | SIMBAD record | NASA ADS Abstract Service
Abundances of neutron-capture elements in G 24-25. A halo-population CH subgiant
- Volume 7, Issue 13 - article #4
- S. Liu, P. E. Nissen, W. J. Schuster, G. Zhao, Y. Q. Chen, Y. C. Liang
- arXiv.org - Astrophysics - Volume: 2012, Issue: 30 Mar
- arXiv:1203.5682 [pdf, ps, other]
The C/O ratio at low metallicity: constraints on early chemical evolution from observations of Galactic halo stars
- Volume 4, Issue 27 - article #25
- D. Fabbian, P. E. Nissen, M. Asplund, M. Pettini, and C. Akerman
- Astronomy and Astrophysics - Volume: 500, Issue: 3
- Abstract | PDF file (304.6 KB) | PS file (154.0 KB)
The Barium Isotopic Abundance in the Metal-Poor Star HD140283
- Volume 3, Issue 49 - article #15
- R. Collet, M. Asplund, P. E. Nissen
- arXiv.org - Astrophysics - Volume: 2008, Issue: 4 Dec
- arXiv:0811.4586 [ps, pdf, other]
The C/O ratio at low metallicity: constraints on early chemical evolution from observations of Galactic halo stars
- Volume 3, Issue 40 - article #9
- D. Fabbian, P. E. Nissen, M. Asplund, M. Pettini, C. Akerman
- arXiv.org - Astrophysics - Volume: 2008, Issue: 2 Oct
- arXiv:0810.0281 [ps, pdf, other]
Oxygen abundances in metal-poor subgiants as determined from [O I], O I and OH lines
- Volume 1, Issue 15 - article #26
- A. E. García Pérez, M. Asplund, F. Primas, P. E. Nissen and B. Gustafsson
- Astronomy and Astrophysics - Volume 451, Issue 2 - May, 2006
- Abstract, Full HTML, PDF file (1.27 MB), PS file (360 KB), References

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