PN
P. E. Nissen
astro-ph.SRastro-ph.GAastro-phastro-ph.EPastro-ph.CO
On Valency
published · living versionsW_n64gwpbt·v1 · currentpublished
Three Ancient Halo Subgiants: Precise Parallaxes, Compositions, Ages, and Implications for Globular Clusters
with Don A. VandenBerg, Howard E. Bond, Edmund P. Nelan, Gail H. Schaefer +1
1 version
W_958dnf9d·v1published
Preprints & journals
45 papers in the corpus · 1999–2026Magnesium isotope ratios in Milky Way and dwarf galaxy stars2607.14067v1 · M. McKenzie, S. Monty, D. Yong et al.2026 · 5 citationsMNRAS, 534, L35-L41 (2024)
The intrinsic dispersion of elemental abundance ratios in nearby metal-poor halo stars2604.26602v1 · Poul Erik Nissen, Anish Amarsi2026 · 0 citationsarXiv
The peculiar composition of the Sun is not related to giant planets2505.22615v1 · M. Carlos, A. M. Amarsi, P. E. Nissen et al.2025 · 6 citationsA&A 700, A127 (2025)
A distinct halo population revealed from 3D non-LTE magnesium abundances2405.13486v1 · T. Matsuno, A. M. Amarsi, M. Carlos et al.2024 · 12 citationsA&A 688, A72 (2024)
Abundances of iron-peak elements in accreted and in situ born Galactic halo stars2312.07768v1 · P.E. Nissen, A.M. Amarsi, 'A. Sk'ulad'ottir et al.2023 · 24 citationsarXiv
3D non-LTE iron abundances in FG-type dwarfs2209.13449v3 · A. M. Amarsi, S. Liljegren, P. E. Nissen2022 · 52 citationsA&A 668, A68 (2022)
G112-43/44: A metal-poor binary star with a unique chemical composition and kinematics like the Helmi streams2105.01568v1 · P.E. Nissen, J.S. Silva-Cabrera, W.J. Schuster2021 · 10 citationsA&A 651, A57 (2021)
High-precision abundances of elements in solar-type stars. Evidence of two distinct sequences in abundance-age relations2006.06013v1 · P. E. Nissen, J. Christensen-Dalsgaard, J. R. Mosumgaard et al.2020 · 128 citationsA&A 640, A81 (2020)
Carbon, oxygen, and iron abundances in disk and halo stars. Implications of 3D non-LTE spectral line formation1908.10319v2 · A. M. Amarsi, P. E. Nissen, 'A. Sk'ulad'ottir2019 · 163 citationsA&A 630, A104 (2019)
The subgiant HR 7322 as an asteroseismic benchmark star1908.03232v1 · Amalie Stokholm, Poul Erik Nissen, Victor Silva Aguirre et al.2019 · 25 citationsarXiv
Carbon and oxygen in metal-poor halo stars1901.03592v2 · A. M. Amarsi, P. E. Nissen, M. Asplund et al.2019 · 48 citationsA&A 622, L4 (2019)
High-precision stellar abundances of the elements - methods and applications1810.06535v1 · Poul Erik Nissen, Bengt Gustafsson2018 · 110 citationsAstron Astrophys Rev (2018) 26: 6
Confirming chemical clocks: asteroseismic age dissection of the Milky Way disk(s)1710.09847v2 · V. Silva Aguirre, M. Bojsen-Hansen, D. Slumstrup et al.2017 · 166 citationsarXiv
High-precision abundances of elements in Kepler LEGACY stars. Verification of trends with stellar age1710.03544v1 · P. E. Nissen, V. Silva Aguirre, J. Christensen-Dalsgaard et al.2017 · 1 citationA&A 608, A112 (2017)
The [Y/Mg] clock works for evolved solar metallicity stars1707.08585v1 · D. Slumstrup, F. Grundahl, K. Brogaard (1 et al.2017 · 39 citationsA&A 604, L8 (2017)
Sun-like stars unlike the Sun: Clues for chemical anomalies of cool stars1701.05737v1 · V. Adibekyan, E. Delgado-Mena, S. Feltzing et al.2017 · 12 citationsarXiv
Sc and neutron-capture abundances in Galactic low- and high-alpha field halo stars1701.02423v1 · C. K. Fishlock, D. Yong, A. I. Karakas et al.2017 · 20 citationsarXiv
High-precision abundances of Sc, Mn, Cu, and Ba in solar twins. Trends of element ratios with stellar age1606.08399v1 · P. E. Nissen2016 · 91 citationsA&A 593, A65 (2016)
Correlation between lithium abundances and ages of solar twin stars1601.05054v2 · Marilia Carlos, Poul E. Nissen, Jorge Melendez2016 · 92 citationsA&A 587, A100 (2016)
Non-LTE analysis of copper abundances for the two distinct halo populations in the solar neighborhood1511.04168v1 · H.L. Yan, J.R. Shi, P.E. Nissen et al.2015 · 37 citationsA&A 585, A102 (2016)
Ages and fundamental properties of Kepler exoplanet host stars from asteroseismology1504.07992v2 · V. Silva Aguirre, G.R. Davies, S. Basu et al.2015 · 402 citationsarXiv
High-precision abundances of elements in solar twin stars: Trends with stellar age and elemental condensation temperature1504.07598v1 · Poul E. Nissen2015 · 275 citationsA&A 579, A52 (2015)
Carbon and oxygen abundances in stellar populations1406.5218v1 · P.E. Nissen, Y.Q. Chen, L. Carigi et al.2014 · 138 citationsA&A 568, A25 (2014)
Stroemgren survey for Asteroseismology and Galactic Archaeology: let the SAGA begin1403.2754v1 · L. Casagrande, V. Silva Aguirre, D. Stello et al.2014 · 116 citationsarXiv
The evolution of C and O abundances in stellar populations1306.4836v1 · Poul E. Nissen, William J. Schuster2013 · 2 citationsarXiv
Two distinct halo populations in the solar neighborhood. IV. Lithium abundances1205.4122v1 · P.E. Nissen, W.J. Schuster2012 · 37 citationsarXiv
Abundances of neutron-capture elements in G 24-25. A halo-population CH subgiant1203.5682v1 · S. Liu, P. E. Nissen, W. J. Schuster et al.2012 · 13 citationsarXiv
Two distinct halo populations in the solar neighborhood. III. Evidence from stellar ages and orbital parameters1111.4026v1 · William J. Schuster, Edmundo Moreno, Poul E. Nissen et al.2011 · 127 citationsarXiv
Chemical abundances as population tracers1109.4010v1 · Poul Erik Nissen2011 · 7 citationsarXiv
The most metal-poor damped Lyman-alpha systems: Insights into chemical evolution in the very metal-poor regime1106.2805v2 · Ryan Cooke, Max Pettini, Charles C. Steidel et al.2011 · 179 citationsarXivon Valency
Two distinct halo populations in the solar neighborhood. II. Evidence from stellar abundances of Mn, Cu, Zn, Y, and Ba1103.4755v1 · Poul E. Nissen, William J. Schuster2011 · 187 citationsarXiv
Two distinct halo populations in the solar neighborhood. Evidence from stellar abundance ratios and kinematics1002.4514v1 · Poul E. Nissen, William J. Schuster2010 · 591 citationsarXiv
Sulphur and zinc abundances in Galactic halo stars revisitedastro-ph/0702689v2 · P.E. Nissen, C. Akerman, M. Asplund et al.2007 · 165 citationsarXiv
Oxygen abundances in metal-poor subgiants as determined from [O I], O I and OH linesastro-ph/0512290v1 · A.E. Garc'ia P'erez, M. Asplund, F. Primas et al.2005 · 63 citationsarXiv
Chemical abundances in 43 metal-poor starsastro-ph/0505118v1 · Karin Jonsell, Bengt Edvardsson, Bengt Gustafsson et al.2005 · 84 citationsarXiv
Abundances in giant stars of the globular cluster NGC 6752astro-ph/0504283v1 · David Yong, Frank Grundahl, Poul Erik Nissen et al.2005 · 156 citationsarXiv
The [Zn/Fe] -- [Fe/H] trend for disk and halo starsastro-ph/0406612v1 · Y.Q. Chen, P. E. Nissen, G. Zhao2004 · 48 citationsAstron.Astrophys. 425 (2004) 697-705
uvby(-) photometry of high-velocity and metal-poor stars X. Stars of very low metal abundance: observations, reddenings, metallicities, classifications, distances, and relative agesastro-ph/0403637v1 · W. J. Schuster, T. C. Beers, R. Michel et al.2004 · 27 citationsAstron.Astrophys. 422 (2004) 527-543
Sulphur and zinc abundances in Galactic stars and damped Lyman-alpha systemsastro-ph/0311529v1 · P.E. Nissen, Y.Q. Chen, M. Asplund et al.2003 · 140 citationsAstron.Astrophys. 415 (2004) 993-1007
The evolution of the C/O ratio in metal-poor halo starsastro-ph/0310472v1 · Chris J. Akerman, Leticia Carigi, Poul E. Nissen et al.2003 · 210 citationsAstron.Astrophys.414:931-942,2004
Mg isotopic ratios in giant stars of the globular cluster NGC 6752astro-ph/0303057v1 · David Yong, Frank Grundahl, David L. Lambert et al.2003 · 149 citationsAstron.Astrophys. 402 (2003) 985-1002
O/Fe in metal-poor main sequence and subgiant starsastro-ph/0205372v1 · P.E. Nissen, F. Primas (ESO), M. Asplund (ANU) et al.2002 · 221 citationsarXiv
The problem of the Pleiades distance. Constraints from Stromgren photometry of nearby field starsastro-ph/0105222v1 · Dennis Stello, Poul Erik Nissen2001 · 58 citationsarXiv
Lithium abundances for 185 main-sequence stars - Galactic evolution and stellar depletion of lithiumastro-ph/0104053v1 · Y.Q.Chen, P.E.Nissen, T.Benoni et al.2001 · 121 citationsarXiv
Chemical composition of 90 F and G disk dwarfsastro-ph/9912342v1 · Y.Q. Chen, P.E. Nissen, G. Zhao et al.1999 · 307 citationsarXiv
Career total: at least 250 works. 45 are in this corpus.
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