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Results 1 - 73 of 73

Element abundance patterns in stars indicate fission of nuclei heavier than uranium. (arXiv:2312.06844v1 [astro-ph.SR])
- Virtual Journal - Volume 21, Issue 48 - article #9
- Ian U. Roederer, Nicole Vassh, Erika M. Holmbeck, Matthew R. Mumpower, Rebecca Surman, John J. Cowan, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Vinicius M. Placco, Charli M. Sakari
- http://arxiv.org/abs/2312.06844
Iron-Peak Element Abundances in Warm Very Metal-Poor Stars. (arXiv:2304.06899v1 [astro-ph.SR])
- Virtual Journal - Volume 21, Issue 16 - article #1
- Christopher Sneden, Ann Merchant Boesgaard, John J. Cowan, Ian U. Roederer, Elizabeth A. Den Hartog, James E. Lawler
- http://arxiv.org/abs/2304.06899
The R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks. (arXiv:2210.15105v1 [astro-ph.SR])
- Virtual Journal - Volume 20, Issue 42 - article #14
- Ian U. Roederer, John J. Cowan, Marco Pignatari, Timothy C. Beers, Elizabeth A. Den Hartog, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Erika M. Holmbeck, Matthew R. Mumpower, Vinicius M. Placco, Charli M. Sakari, Rebecca Surman, Nicole Vassh
- http://arxiv.org/abs/2210.15105
The R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks
- Virtual Journal - Volume 20, Issue 34 - article #16
- Ian U. Roederer, John J. Cowan, Marco Pignatari, Timothy C. Beers, Elizabeth A. Den Hartog, Rana Ezzeddine, Anna Frebel, Terese T. Hansen, Erika M. Holmbeck, Matthew R. Mumpower
- The Astrophysical Journal
- https://doi.org/10.3847/1538-4357/ac85bc
Origin of the heaviest elements: The rapid neutron-capture process
- Virtual Journal - Volume 19, Issue 6 - article #15
- John J. Cowan, Christopher Sneden, James E. Lawler, Ani Aprahamian, Michael Wiescher, Karlheinz Langanke, Gabriel MartÃƒÂnez-Pinedo,, Friedrich-Karl Thielemann
- Reviews of Modern Physics
- http://link.aps.org/doi/10.1103/RevModPhys.93.015002
Vanadium Abundance Derivations in 255 Metal-poor Stars
- Virtual Journal - Volume 18, Issue 37 - article #29
- Xiaowei Ou, Ian U. Roederer, Christopher Sneden, John J. Cowan, James E. Lawler, Stephen A. Shectman,, Ian B. Thompson
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/900/2/106
Vanadium Abundance Derivations in 255 Metal-poor Stars. (arXiv:2008.05500v1 [astro-ph.SR])
- Virtual Journal - Volume 18, Issue 33 - article #7
- Xiaowei Ou, Ian U. Roederer, Christopher Sneden, John J. Cowan, James E. Lawler, Stephen A. Shectman, Ian B. Thompson
- http://arxiv.org/abs/2008.05500
Origin of the Heaviest Elements: the Rapid Neutron-Capture Process. (arXiv:1901.01410v2 [astro-ph.HE] UPDATED)
- Virtual Journal - Volume 18, Issue 18 - article #4
- John J. Cowan, Christopher Sneden, James E. Lawler, Ani Aprahamian, Michael Wiescher, Karlheinz Langanke, Gabriel Martínez-Pinedo, Friedrich-Karl Thielemann
- http://arxiv.org/abs/1901.01410
Detailed Iron-Peak Element Abundances in Three Very Metal-Poor Stars. (arXiv:2001.00541v1 [astro-ph.SR])
- Virtual Journal - Volume 18, Issue 1 - article #2
- John J. Cowan, Christopher Sneden, Ian U. Roederer, James E. Lawler, Elizabeth A. Den Hartog, Jennifer S. Sobeck, Ann Merchant Boesgaard
- http://arxiv.org/abs/2001.00541
The R -Process Alliance: Discovery of a Low- α , r -process-enhanced Metal-poor Star in the Galactic Halo
- Virtual Journal - Volume 17, Issue 14 - article #22
- Charli M. Sakari, Ian U. Roederer, Vinicius M. Placco, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Christopher Sneden, John J. Cowan, George Wallerstein, Elizabeth M. Farrell, Kim A. Venn, Gal MatijeviÃ„Â, Rosemary F. G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz,, Fred Watson
- The Astrophysical Journal
- http://iopscience.iop.org/0004-637X/874/2/148
The R-Process Alliance: Discovery of a low-alpha, r-Process-Enhanced Metal-Poor Star in the Galactic Halo. (arXiv:1903.01480v1 [astro-ph.SR])
- Virtual Journal - Volume 17, Issue 10 - article #9
- Charli M. Sakari, Ian U. Roederer, Vinicius M. Placco, Timothy C. Beers, Rana Ezzeddine, Anna Frebel, Terese Hansen, Christopher Sneden, John J. Cowan, George Wallerstein, Elizabeth M. Farrell, Kim A. Venn, Gal Matijevic, Rosemary F.G. Wyse, Joss Bland-Hawthorn, Cristina Chiappini, Kenneth C. Freeman, Brad K. Gibson, Eva K. Grebel, Amina Helmi, Georges Kordopatis, Andrea Kunder, Julio Navarro, Warren Reid, George Seabroke, Matthias Steinmetz, Fred Watson
- http://arxiv.org/abs/1903.01480
Vanadium Transitions in the Spectrum of Arcuturs
- Virtual Journal - Volume 16, Issue 5 - article #25
- M. P. Wood, C. Sneden, J. E. Lawler, E. A. Den Hartog, J. J. Cowan,, G. Nave
- The Astrophysical Journal Supplement Series
- http://iopscience.iop.org/0067-0049/234/2/25
Vanadium Transitions in the Spectrum of Arcturus. (arXiv:1712.06942v1 [astro-ph.SR])
- Virtual Journal - Volume 15, Issue 51 - article #13
- M. P. Wood, C. Sneden, J. E. Lawler, E. A. Den Hartog, J. J. Cowan, G. Nave
- http://arxiv.org/abs/1712.06942
Improved Cr II log(gf) Values and Abundance Determinations in the Photospheres of the Sun and Metal-poor Star HD 84937
- Virtual Journal - Volume 15, Issue 4 - article #40
- J. E. Lawler, C. Sneden, G. Nave, E. A. Den Hartog, N. EmrahoÃ„ÂŸlu,, J. J. Cowan
- The Astrophysical Journal Supplement Series
- http://iopscience.iop.org/0067-0049/228/1/10
Iron-group Abundances in the Metal-poor Main-Sequence Turnoff Star HD~84937
- Virtual Journal - Volume 14, Issue 6 - article #31
- Christopher Sneden, John J. Cowan, Chiaki Kobayashi, Marco Pignatari, James E. Lawler, Elizabeth A. Den Hartog, and Michael P. Wood
- The Astrophysical Journal - Volume: 817, Issue: 1
- View article PDF (1.79 MB)
Erratum: Nine new metal-poor stars on the subgiant and red horizontal branches with high levels of r-process enhancement
- Virtual Journal - Volume 14, Issue 1 - article #10
- Ian U. Roederer, John J. Cowan, George W. Preston, Stephen A. Shectman, Christopher Sneden, and Ian B. Thompson
- Monthly Notices of the Royal Astronomical Society - Volume: 455, Issue: 4
- Extract Full Text (HTML) Full Text (PDF)
Iron-Group Abundances in the Metal-Poor Main Sequence Turnoff Star HD~84937
- Virtual Journal - Volume 13, Issue 44 - article #3
- Christopher Sneden, John J. Cowan, Chiaki Kobayashi, Marco Pignatari, James E. Lawler, Elizabeth A. Den Hartog, Michael P. Wood
- arXiv.org - Astrophysics - Volume: 2015, Issue: 20 Nov
- arXiv:1511.05985 [pdf, other]
Hubble Space Telescope Near-Ultraviolet Spectroscopy of Bright CEMP-s Stars
- Virtual Journal - Volume 13, Issue 31 - article #8
- Vinicius M. Placco, Timothy C. Beers, Inese I. Ivans, Dan Filler, Julie A. Imig, Ian U. Roederer, Carlo Abate, Terese Hansen, John J. Cowan, Anna Frebel, James E. Lawler, Hendrik Schatz, Christopher Sneden, Jennifer S. Sobeck, Wako Aoki, Verne V. Smith, Michael Bolte
- arXiv.org - Astrophysics - Volume: 2015, Issue: 28 Aug
- arXiv:1508.05872 [pdf, ps, other]
A primordial r-process?
- Virtual Journal - Volume 13, Issue 16 - article #1
- T. Rauscher, J. H. Applegate, J. J. Cowan, F.-K. Thielemann, M. Wiescher
- arXiv.org - Astrophysics - Volume: 2015, Issue: 24 Apr
- arXiv:1504.04461 [pdf, ps, other]
Nine new metal-poor stars on the subgiant and red horizontal branches with high levels of r-process enhancement
- Virtual Journal - Volume 12, Issue 24 - article #92
- Ian U. Roederer, John J. Cowan, George W. Preston, Stephen A. Shectman, Christopher Sneden, and Ian B. Thompson
- Monthly Notices of the Royal Astronomical Society - Volume: 445, Issue: 3
- Abstract Full Text (HTML) Full Text (PDF)
Nine New Metal-Poor Stars on the Subgiant and Red Horizontal Branches with High Levels of r-process Enhancement
- Virtual Journal - Volume 12, Issue 22 - article #35
- Ian U. Roederer (U. Michigan), John J. Cowan (U. Oklahoma), George W. Preston, Stephen A. Shectman (Carnegie Observatories), Chris Sneden (U. Texas), Ian B. Thompson (Carnegie Observatories)
- arXiv.org - Astrophysics - Volume: 2014, Issue: 26 Sep
- arXiv:1409.5810 [pdf, ps, other]
Hubble Space Telescope Near-ultraviolet Spectroscopy of the Bright CEMP-no Star BD+44Â°493
- Virtual Journal - Volume 12, Issue 21 - article #149
- Vinicius M. Placco, Timothy C. Beers, Ian U. Roederer, John J. Cowan, Anna Frebel, Dan Filler, Inese I. Ivans, James E. Lawler, Hendrik Schatz, Christopher Sneden, Jennifer S. Sobeck, Wako Aoki, and Verne V. Smith
- The Astrophysical Journal - Volume: 790, Issue: 1
- View article PDF (835 KB)
New Detections of Arsenic, Selenium, and Other Heavy Elements in Two Metal-poor Stars
- Virtual Journal - Volume 12, Issue 21 - article #159
- Ian U. Roederer, Hendrik Schatz, James E. Lawler, Timothy C. Beers, John J. Cowan, Anna Frebel, Inese I. Ivans, Christopher Sneden, and Jennifer S. Sobeck
- The Astrophysical Journal - Volume: 791, Issue: 1
- View article PDF (871 KB)
New Detections of Arsenic, Selenium, and Other Heavy Elements in Two Metal-Poor Stars
- Virtual Journal - Volume 12, Issue 20 - article #61
- Ian U. Roederer, Hendrik Schatz, James E. Lawler, Timothy C. Beers, John J. Cowan, Anna Frebel, Inese I. Ivans, Christopher Sneden, Jennifer S. Sobeck
- arXiv.org - Astrophysics - Volume: 2014, Issue: 20 Jun
- arXiv:1406.4554 [pdf, ps, other]
Improved Ni I log(gf) Values and Abundance Determinations in the Photospheres of the Sun and Metal-poor Star HD 84937
- Virtual Journal - Volume 12, Issue 8 - article #3
- M. P. Wood, J. E. Lawler, C. Sneden, J. J. Cowan
- arXiv.org - Astrophysics - Volume: 2014, Issue: 21 Feb
- arXiv:1402.4457 [pdf]
Improved Log(gf) Values for Lines of Ti I and Abundance Determinations in the Photospheres of the Sun and Metal-Poor Star HD 84937 (Accurate Transition Probabilities for Ti I)
- Virtual Journal - Volume 11, Issue 50 - article #29
- J. E. Lawler, A. Guzman, M. P. Wood, C. Sneden, and J. J. Cowan
- The Astrophysical Journal Supplement - Volume: 205, Issue: 2
- View article PDF (885 KB)
New Hubble Space Telescope Observations of Heavy Elements in Four Metal-Poor Stars
- Virtual Journal - Volume 10, Issue 52 - article #60
- Ian U. Roederer, James E. Lawler, Jennifer S. Sobeck, Timothy C. Beers, John J. Cowan, Anna Frebel, Inese I. Ivans, Hendrik Schatz, Christopher Sneden, and Ian B. Thompson
- The Astrophysical Journal Supplement - Volume: 203, Issue: 2
- Abstract References Cited by Full text PDF (2.07 MB) HTML with Enhancements
New Hubble Space Telescope Observations of Heavy Elements in Four Metal-Poor Stars
- Virtual Journal - Volume 10, Issue 43 - article #14
- Ian U. Roederer, James E. Lawler, Jennifer S. Sobeck, Timothy C. Beers, John J. Cowan, Anna Frebel, Inese I. Ivans, Hendrik Schatz, Christopher Sneden, Ian B. Thompson
- arXiv.org - Astrophysics - Volume: 2012, Issue: 26 Oct
- arXiv:1210.6387 [pdf, ps, other]
Detection of the Second r-process Peak Element Tellurium in Metal-poor Stars
- Virtual Journal - Volume 10, Issue 10 - article #32
- Ian U. Roederer, James E. Lawler, John J. Cowan, Timothy C. Beers, Anna Frebel, Inese I. Ivans, Hendrik Schatz, Jennifer S. Sobeck and Christopher Sneden
- The Astrophysical Journal Letters - Volume: 747, Issue: 1
- Abstract References Full text PDF (258 KB) View as HTML
Detection of the Second r-process Peak Element Tellurium in Metal-Poor Stars
- Virtual Journal - Volume 10, Issue 7 - article #6
- Ian U. Roederer, James E. Lawler, John J. Cowan, Timothy C. Beers, Anna Frebel, Inese I. Ivans, Hendrik Schatz, Jennifer S. Sobeck, Christopher Sneden
- arXiv.org - Astrophysics - Volume: 2012, Issue: 17 Feb
- arXiv:1202.2378 [pdf, ps, other]
The Impact of Recent Advances in Laboratory Astrophysics on our Understanding of the Cosmos
- Virtual Journal - Volume 9, Issue 50 - article #14
- D. W. Savin, N. S. Brickhouse, J. J. Cowan, R. P. Drake, S. R. Federman, G. J. Ferland, A. Frank, M. S. Gudipati, W. C. Haxton, E. Herbst, S. Profumo, F. Salama, L. M. Ziurys, E. G. Zweibe
- arXiv.org - Astrophysics - Volume: 2011, Issue: 16 Dec
- arXiv:1112.2770 [pdf, other]
r-Process Abundance Signatures in Metal-Poor Halo Stars
- Virtual Journal - Volume 9, Issue 23 - article #8
- John J. Cowan, Ian U. Roederer, Christopher Sneden, James E. Lawler
- arXiv.org - Astrophysics - Volume: 2011, Issue: 10 Jun
- arXiv:1106.1109 [pdf, ps, other]
The Abundances of Neutron-capture Species in the Very Metal-poor Globular Cluster M15: A Uniform Analysis of Red Giant Branch and Red Horizontal Branch Stars
- Virtual Journal - Volume 9, Issue 23 - article #17
- Jennifer S. Sobeck, Robert P. Kraft, Christopher Sneden, George W. Preston, John J. Cowan, Graeme H. Smith, Ian B. Thompson, Stephen A. Shectman and Gregory S. Burley
- Astronomical Journal - Volume: 141, Issue: 6
- doi: 10.1088/0004-6256/141/6/175 Tag this article
The Ubiquity of the Rapid Neutron-Capture Process
- Virtual Journal - Volume 8, Issue 39 - article #22
- I.U. Roederer, J.J. Cowan, A.I. Karakas, K.-L. Kratz, M. Lugaro, J. Simmerer, K. Farouqi, C. Sneden
- arXiv.org - Astrophysics - Volume: 2010, Issue: 24 Sep
- arXiv:1009.4496 [pdf, ps, other]
New Abundance Determinations of Cadmium, Lutetium, and Osmium in the r-process Enriched Star BD+173248
- Virtual Journal - Volume 8, Issue 13 - article #5
- Ian U. Roederer, Christopher Sneden, James E. Lawler, John J. Cowan
- arXiv.org - Astrophysics - Volume: 2010, Issue: 26 Mar
- arXiv:1003.4522 [pdf, ps, other]
The End of Nucleosynthesis: Production of Lead and Thorium in the Early Galaxy
- Virtual Journal - Volume 7, Issue 24 - article #29
- <em >Ian U. Roederer, Karl-Ludwig Kratz, Anna Frebel, Norbert Christlieb, Bernd Pfeiffer, John J. Cowan, and Christopher Sneden</em&gt,
- The Astrophysical Journal - Volume: 698, Issue: 2
- Abstract | References
New Rare Earth Element Abundance Distributions for the Sun and Five r-Process-Rich Very Metal-Poor Stars
- Virtual Journal - Volume 7, Issue 19 - article #32
- <em >Christopher Sneden, James E. Lawler, John J. Cowan, Inese I. Ivans, and Elizabeth A. Den Hartog</em&gt,
- The Astrophysical Journal Supplement - Volume: 182, Issue: 1
- Abstract | References
The End of Nucleosynthesis: Production of Lead and Thorium in the Early Galaxy
- Virtual Journal - Volume 7, Issue 17 - article #4
- Ian U. Roederer (University of Texas), Karl-Ludwig Kratz (Max-Planck-Institut fur Chemie), Anna Frebel (Harvard-Smithsonian Center for Astrophysics), Norbert Christlieb (Zentrum fur Astronomie der Universitat Heidelberg), Bernd Pfeiffer (Max-Planck-Institut fur Chemie), John J. Cowan (University of Oklahoma), Christopher Sneden (University of Texas)
- arXiv.org - Astrophysics - Volume: 2009, Issue: 24 Apr
- arXiv:0904.3105 [ps, pdf, other]
New Rare Earth Element Abundance Distributions for the Sun and Five r-Process-Rich Very Metal-Poor Stars
- Virtual Journal - Volume 7, Issue 11 - article #6
- Christopher Sneden, James E. Lawler, John J. Cowan, Inese I. Ivans, Elizabeth A. Den Hartog
- arXiv.org - Astrophysics - Volume: 2009, Issue: 13 Mar
- arXiv:0903.1623 [ps, pdf, other]
Improved Laboratory Transition Probabilities for Er ii and Application to the Erbium Abundances of the Sun and Five r-Process-rich, Metal-poor Stars
- Virtual Journal - Volume 6, Issue 35 - article #28
- J. E. Lawler, C. Sneden, J. J. Cowan, J.-F. Wyart, I. I. Ivans, J. S. Sobeck, M. H. Stockett, and E. A. Den Hartog
- The Astrophysical Journal Supplement - Volume: 178, Issue: 1
- Abstract-Full Text with Enhancements-PDF Version (953 kB)
Neutron-Capture Elements in the Early Galaxy
- Virtual Journal - Volume 6, Issue 34 - article #1
- Christopher Sneden, John J. Cowan, Roberto Gallino
- Annual Review of Astronomy and Astrophysics - Volume: 46, Issue: 1
- Abstract | Full Text | PDF (1241 KB)
The Hobby-Eberly Telescope Chemical Abundances of Stars in the Halo (CASH) Project. I. The Lithium-, s-, and r-enhanced Metal-poor Giant HKII 17435−00532
- Virtual Journal - Volume 6, Issue 23 - article #21
- Ian U. Roederer, Anna Frebel, Matthew D. Shetrone, Carlos Allende Prieto, Jaehyon Rhee, Roberto Gallino, Sara Bisterzo, Christopher Sneden, Timothy C. Beers, and John J. Cowan
- The Astrophysical Journal - Volume: 679, Issue: 2
- Abstract-Full Text with Enhancements-PDF Version (958 kB)
Improved Laboratory Transition Probabilities for Er II and Applications to the Erbium Abundances of the Sun and Five r-Process Rich, Metal-Poor Stars
- Virtual Journal - Volume 6, Issue 18 - article #3
- J. E. Lawler, C. Sneden, J. J. Cowan, J.-F. Wyart, I. I. Ivans, J. S. Sobeck, M. H. Stockett, E. A. Den Hartog
- arXiv.org - Astrophysics - Volume: 2008, Issue: 1 May
- arXiv:0804.4465 [ps, pdf, other]
Europium, Samarium, and Neodymium Isotopic Fractions in Metal‐Poor Stars
- Virtual Journal - Volume 6, Issue 9 - article #4
- Ian U. Roederer, James E. Lawler, Christopher Sneden, John J. Cowan, Jennifer S. Sobeck, and Catherine A. Pilachowski
- The Astrophysical Journal - Volume: 675, Issue: 1
- Abstract-Full Text with Enhancements-PDF Version (834 kB)
The Hobby-Eberly Telescope "Chemical Abundances of Stars in the Halo" (CASH) Project. I. The Lithium-, s-, and r-Enhanced Metal-Poor Giant HKII 17435-00532
- Virtual Journal - Volume 6, Issue 9 - article #13
- Ian U. Roederer, Anna Frebel, Matthew D. Shetrone, Carlos Allende Prieto, Jaehyon Rhee, Roberto Gallino, Sara Bisterzo, Christopher Sneden, Timothy C. Beers, John J. Cowan
- arXiv.org - Astrophysics - Volume: 2008, Issue: 28 Feb
- arXiv:0802.3701 [ps, pdf, other]
Europium, Samarium, and Neodymium Isotopic Fractions in Metal-Poor Stars
- Virtual Journal - Volume 5, Issue 51 - article #22
- Ian U. Roederer, James E. Lawler, Christopher Sneden, John J. Cowan, Jennifer S. Sobeck, Catherine A. Pilachowski
- arXiv.org - Astrophysics - Volume: 2007, Issue: 20 Dec
- arXiv:0712.2473 [ps, pdf, other]
Nucleosynthesis in the Early Galaxy
- Virtual Journal - Volume 5, Issue 36 - article #2
- F. Montes, T. C. Beers, J. Cowan, T. Elliot, K. Farouqi, R. Gallino, M. Heil, K.-L. Kratz, B. Pfeiffer, M. Pignatari, H. Schatz
- ArXiv - Astrophysics
- arXiv:0709.0417 [ps, pdf, other]
Explorations of the r-Processes: Comparisons between Calculations and Observations of Low-Metallicity Stars
- Virtual Journal - Volume 5, Issue 23 - article #3
- Karl-Ludwig Kratz, Khalil Farouqi, Bernd Pfeiffer, James W. Truran, Christopher Sneden, and John J. Cowan
- The Astrophysical Journal - Volume662, Issue 1
- ABSTRACT, FULL TEXT, PDF (542 kB), PS
Explorations of the r-Processes: Comparisons between Calculations and Observations of Low-Metallicity Stars
- Virtual Journal - Volume 5, Issue 10 - article #1
- Karl-Ludwig Kratz, Khalil Farouqi, Bernd Pfeiffer, James W. Truran, Christopher Sneden, John J. Cowan
- ArXiv - Astrophysics
- astro-ph/0703091 [abs, ps, pdf, other]
Improved Laboratory Transition Probabilities for Hf and Hafnium Abundances in the Sun and 10 Metal-poor Stars
- Virtual Journal - Volume 5, Issue 9 - article #9
- J. E. Lawler, E. A. Den Hartog, Z. E. Labby, C. Sneden, J. J. Cowan, and I. I. Ivans
- The Astrophysical Journal Supplement - Volume169, Issue 1
- ABSTRACT, FULL TEXT WITH ENHANCEMENTS, PDF (385 kB), PS
In Memory of Al Cameron
- Virtual Journal - Volume 4, Issue 48 - article #1
- John J. Cowan, James W. Truran
- ArXiv - Astrophysics
- astro-ph/0611824 [abs, ps, pdf, other]
r-Process Enhanced Halo Stars
- Virtual Journal - Volume 4, Issue 42 - article #7
- J. J. Cowan, C. Sneden, J. E. Lawler, E. A. Den Hartog
- ArXiv - Astrophysics
- astro-ph/0610412 [abs, ps, pdf, other]
Gd Transition Probabilities and Abundances
- Virtual Journal - Volume 4, Issue 38 - article #7
- E. A. Den Hartog, J. E. Lawler, C. Sneden, J. J. Cowan
- ArXiv - Astrophysics
- astro-ph/0609487 [abs, ps, pdf, other]
Near-Ultraviolet Observations of HD 221170: New Insights into the Nature of r-Process–rich Stars
- Virtual Journal - Volume 4, Issue 27 - article #5
- Inese I. Ivans, Jennifer Simmerer, Christopher Sneden, James E. Lawler, John J. Cowan, Roberto Gallino, and Sara Bisterzo
- The Astrophysical Journal - Volume645, Issue 1
- ABSTRACT, FULL TEXT WITH ENHANCEMENTS, PDF (761 kB), PS
Nucleosynthesis: Stellar and Solar Abundances and Atomic Data
- Virtual Journal - Volume 4, Issue 19 - article #16
- John J. Cowan, James E. Lawler, Christopher Sneden, E. A. Den Hartog, Jason Collier
- ArXiv - Astrophysics
- astro-ph/0605137 [abs, ps, pdf, other]
Heavy element synthesis in the oldest stars and the early Universe
- Virtual Journal - Volume 4, Issue 17 - article #34
- John J. Cowan and Christopher Sneden
- Nature - Volume 440, Issue 7088
- Abstract, Full Text, PDF (543K)
Near-UV Observations of HD221170: New Insights into the Nature of r-Process-Rich Stars
- Virtual Journal - Volume 4, Issue 15 - article #13
- Inese I. Ivans, Jennifer Simmerer, Christopher Sneden, James E. Lawler, John J. Cowan, Roberto Gallino, Sara Bisterzo
- ArXiv - Astrophysics
- astro-ph/0604180 [abs, ps, pdf, other]
Sm Transition Probabilities and Abundances
- Virtual Journal - Volume 3, Issue 42 - article #9
- J. E. Lawler, E. A. Den Hartog, C. Sneden, J. J. Cowan
- ArXiv - Astrophysics – October 2005
- astro-ph/0510585 [abs, ps, pdf, other]
Hubble Space Telescope Observations of Heavy Elements in Metal-Poor Galactic Halo Stars
- Virtual Journal - Volume 3, Issue 26 - article #44
- John J. Cowan, Christopher Sneden, Timothy C. Beers, James E. Lawler, Jennifer Simmerer, James W. Truran, Francesca Primas, Jason Collier, and Scott Burles
- The Astrophysical Journal - Vol. 627, No. 1 – July 2005
- ABSTRACT , FULL TEXT , PDF (377 kB), PS
Near-Ultraviolet Observations of CS 29497-030: New Constraints on Neutron-Capture Nucleosynthesis Processes
- Virtual Journal - Volume 3, Issue 26 - article #59
- Inese I. Ivans, Christopher Sneden, Roberto Gallino, John J. Cowan, and George W. Preston
- The Astrophysical Journal Letters - Vol. 627, No. 2 –July 2005
- ABSTRACT , FULL TEXT , PDF (189 kB), PS
Near-UV Observations of CS29497-030: New Constraints on Neutron-Capture Nucleosynthesis Processes
- Virtual Journal - Volume 3, Issue 18 - article #15
- Inese I. Ivans (Caltech), Christopher Sneden (U Texas-Austin), Roberto Gallino (U Torino), John J. Cowan (U Oklahoma), George W. Preston (OCIW-Pasadena)
- arXiv – Astrophysics – May 2005
- astro-ph/0505002 [ abs , ps , pdf , other ]
HST Observations of Heavy Elements in Metal-Poor Galactic Halo Stars
- Virtual Journal - Volume 3, Issue 9 - article #15
- John J. Cowan, Christopher Sneden, Timothy C. Beers, James E. Lawler, Jennifer Simmerer, James W. Truran, Francesca Primas, Jason Collier, Scott Burles
- arXiv - Astrophysics – March 2005
- astro-ph/0502591 [ abs , ps , pdf , other ]
Improved Laboratory Transition Probabilities for Pt I and Application to the Platinum Abundances of BD +17°3248 and the Sun
- Virtual Journal - Volume 3, Issue 3 - article #21
- E. A. Den Hartog, M. T. Herd, J. E. Lawler, C. Sneden, J. J. Cowan, and T. C. Beers
- Astrophysical Journal – Vol 619, No 1 – January 2005
- ABSTRACT , FULL TEXT WITH ENHANCEMENTS , PDF (437 kB), PS
The Rise of the s -Process in the Galaxy
- Virtual Journal - Volume 2, Issue 51 - article #17
- Jennifer Simmerer, Christopher Sneden, John J. Cowan, Jason Collier, Vincent M. Woolf, and James E. Lawler
- Astrophysical Journal – Vol 617, No 2 – December 2004
- ABSTRACT , FULL TEXT WITH ENHANCEMENTS , PDF (583 kB), PS
The Rise of the s-Process in the Galaxy
- Virtual Journal - Volume 2, Issue 42 - article #21
- J. Simmerer (1), C. Sneden (1), J. J. Cowan (2), J. Collier (2), V. M. Woolf (3), J. E. Lawler (4) ((1) Department of Astronomy, University of Texas at Austin (2) Department of Physics and Astronomy, University of Oklahoma (3) Department of Astronomy, University of Washington (4) Department of Physics, University of Wisconsin)
- arXiv - Astrophysics – October 2004
- astro-ph/0410396 [ abs , ps , pdf , other ]
Neutron-Capture Element Abundances in Halo Stars
- Virtual Journal - Volume 2, Issue 38 - article #1
- John J. Cowan, Christopher Sneden
- arXiv - Astrophysics – October 2004
- astro-ph/0409552 [ abs , ps , pdf , other ]
r-process chronometers
- Virtual Journal - Volume 2, Issue 36 - article #46
- K. -L. Kratz, B. Pfeiffer, J. J. Cowan and C. Sneden
- New Astronomy Reviews, February 2004, vol. 48, iss. 1, pp. 105-108(4)
- http://dx.doi.org/10.1016/j.newar.2003.11.014
Halo Star Abundances and Heavy Element Nucleosynthesis
- Virtual Journal - Volume 2, Issue 21 - article #23
- John J. Cowan, Christopher Sneden
- arXiv.org - Astrophysics – May 2004
- astro-ph/0405423 [ abs , ps , pdf , other ]
Improved Atomic Data for Ho II and New Holmium Abundances for the Sun and Three Metal-poor Stars
- Virtual Journal - Volume 2, Issue 12 - article #29
- J. E. Lawler, C. Sneden, and J. J. Cowan
- The Astrophysical Journal - Volume 604, Number 2, Part 1
- ABSTRACT , FULL TEXT , PDF (306 kB), PS
A sprinkling of stardust
- Virtual Journal - Volume 2, Issue 12 - article #36
- JOHN J. COWAN reviews Stellar Alchemy: The Celestial Origin of Atoms by Michel CassÃ© (transl. Stephen Lyle)
- Nature - Vol 428 No 6981
- Full text , PDF (698k)
Advances in r-Process Nucleosynthesis
- Virtual Journal - Volume 1, Issue 12 - article #18
- John J. Cowan, Christopher Sneden
- arXiv.org - Astrophysics - Wed, 1 Oct 2003
- astro-ph/0309802 [ abs , ps , pdf , other ]
Improved Laboratory Transition Probabilities for Nd II and Application to the Neodymium Abundances of the Sun and Three Metal-poor Stars

The Extremely Metal-poor, Neutron Capture rich Star CS 22892-052: A Comprehensive Abundance Analysis

Virtual Journal - Volume 1, Issue 1 - article #39
Christopher Sneden, John J. Cowan, James E. Lawler, Inese I. Ivans, Scott Burles, Timothy C. Beers, Francesca Primas, Vanessa Hill, James W. Truran, George M. Fuller, Bernd Pfeiffer, and Karl-Ludwig Kratz

The Astrophysical Journal, Volume 591, Number 2, Part 1

ABSTRACT , FULL TEXT , PDF (435kb), PS

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