The R-Process Alliance: First Release from the Northern Search for r-process-enhanced Metal-poor Stars in the Galactic Halo
Sakari, Charli M., Placco, Vinicius M., Farrell, Elizabeth M., Roederer, Ian U., Wallerstein, George, Beers, Timothy C., Ezzeddine, Rana, Frebel, Anna, Hansen, Terese, Holmbeck, Erika M., Sneden, Christopher, Cowan, John J., Venn, Kim A., Davis, Christopher Evan, Matijevi, Gal, Wyse, Rosemary F. G., Bland-Hawthorn, Joss, Chiappini, Cristina, Freeman, Kenneth C., Gibson, Brad K., Grebel, Eva K., Helmi, Amina, Kordopatis, Georges, Kunder, Andrea, Navarro, Julio, Reid, Warren, Seabroke, George, Steinmetz, Matthias, Watson, Fred
Published in The Astrophysical journal (01.12.2018)
Published in The Astrophysical journal (01.12.2018)
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Journal Article
The R-Process Alliance: 2MASS J09544277+5246414, the Most Actinide-enhanced R-II Star Known
Holmbeck, Erika M., Beers, Timothy C., Roederer, Ian U., Placco, Vinicius M., Hansen, Terese T., Sakari, Charli M., Sneden, Christopher, Liu, Chao, Lee, Young Sun, Cowan, John J., Frebel, Anna
Published in Astrophysical journal. Letters (01.06.2018)
Published in Astrophysical journal. Letters (01.06.2018)
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Journal Article
Iron-peak Element Abundances in Warm Very Metal-poor Stars
Sneden, Christopher, Boesgaard, Ann Merchant, Cowan, John J., Roederer, Ian U., Den Hartog, Elizabeth A., Lawler, James E.
Published in The Astrophysical journal (01.08.2023)
Published in The Astrophysical journal (01.08.2023)
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Journal Article
The Ubiquity of the Rapid Neutron-capture Process
Roederer, Ian U, Cowan, John J, Karakas, Amanda I, Kratz, Karl-Ludwig, Lugaro, Maria, Simmerer, Jennifer, Farouqi, Khalil, Sneden, Christopher
Published in The Astrophysical journal (01.12.2010)
Published in The Astrophysical journal (01.12.2010)
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Journal Article
Vanadium Abundance Derivations in 255 Metal-poor Stars
Ou 欧, Xiaowei 筱葳, Roederer, Ian U., Sneden, Christopher, Cowan, John J., Lawler, James E., Shectman, Stephen A., Thompson, Ian B.
Published in The Astrophysical journal (01.09.2020)
Published in The Astrophysical journal (01.09.2020)
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Journal Article
The R-Process Alliance: Abundance Universality among Some Elements at and between the First and Second R-Process Peaks
Roederer, Ian U., Cowan, John J., Pignatari, Marco, Beers, Timothy C., Den Hartog, Elizabeth A., Ezzeddine, Rana, Frebel, Anna, Hansen, Terese T., Holmbeck, Erika M., Mumpower, Matthew R., Placco, Vinicius M., Sakari, Charli M., Surman, Rebecca, Vassh, Nicole
Published in The Astrophysical journal (01.09.2022)
Published in The Astrophysical journal (01.09.2022)
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Journal Article
Element abundance patterns in stars indicate fission of nuclei heavier than uranium
Roederer, Ian U, Vassh, Nicole, Holmbeck, Erika M, Mumpower, Matthew R, Surman, Rebecca, Cowan, John J, Beers, Timothy C, Ezzeddine, Rana, Frebel, Anna, Hansen, Terese T, Placco, Vinicius M, Sakari, Charli M
Published in Science (American Association for the Advancement of Science) (08.12.2023)
Published in Science (American Association for the Advancement of Science) (08.12.2023)
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Journal Article
Consistent Iron Abundances Derived from Neutral and Singly Ionized Iron Lines in Ultraviolet and Optical Spectra of Six Warm Metal-poor Stars
Roederer, Ian U., Sneden, Christopher, Lawler, James E., Sobeck, Jennifer S., Cowan, John J., Boesgaard, Ann Merchant
Published in The Astrophysical journal (20.06.2018)
Published in The Astrophysical journal (20.06.2018)
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Journal Article
NEW HUBBLE SPACE TELESCOPE OBSERVATIONS OF HEAVY ELEMENTS IN FOUR METAL-POOR STARS
Roederer, Ian U, Lawler, James E, Sobeck, Jennifer S, Beers, Timothy C, Cowan, John J, FREBEL, ANNA, Ivans, Inese I, Schatz, Hendrik, Sneden, Christopher, Thompson, Ian B
Published in The Astrophysical journal. Supplement series (01.12.2012)
Published in The Astrophysical journal. Supplement series (01.12.2012)
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Journal Article
NEW DETECTIONS OF ARSENIC, SELENIUM, AND OTHER HEAVY ELEMENTS IN TWO METAL-POOR STARS
Roederer, Ian U, Schatz, Hendrik, Lawler, James E, Beers, Timothy C, Cowan, John J, FREBEL, ANNA, Ivans, Inese I, Sneden, Christopher, Sobeck, Jennifer S
Published in The Astrophysical journal (01.08.2014)
Published in The Astrophysical journal (01.08.2014)
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Journal Article
Nine new metal-poor stars on the subgiant and red horizontal branches with high levels of r-process enhancement
Roederer, Ian U., Cowan, John J., Preston, George W., Shectman, Stephen A., Sneden, Christopher, Thompson, Ian B.
Published in Monthly notices of the Royal Astronomical Society (11.12.2014)
Published in Monthly notices of the Royal Astronomical Society (11.12.2014)
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Journal Article
HUBBLE SPACE TELESCOPE NEAR-ULTRAVIOLET SPECTROSCOPY OF BRIGHT CEMP- s STARS
Placco, Vinicius M, Beers, Timothy C, Ivans, Inese I, Filler, Dan, Imig, Julie A, Roederer, Ian U, Abate, Carlo, Hansen, Terese, Cowan, John J, Frebel, Anna
Published in The Astrophysical journal (20.10.2015)
Published in The Astrophysical journal (20.10.2015)
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Journal Article
Galactic Evolution of Sr, Y, and Zr: A Multiplicity of Nucleosynthetic Processes
Travaglio, Claudia, Gallino, Roberto, Arnone, Enrico, Cowan, John, Jordan, Faith, Sneden, Christopher
Published in The Astrophysical journal (01.02.2004)
Published in The Astrophysical journal (01.02.2004)
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Journal Article
The R-Process Alliance: Discovery of a Low-α, r-process-enhanced Metal-poor Star in the Galactic Halo
Sakari, Charli M., Roederer, Ian U., Placco, Vinicius M., Beers, Timothy C., Ezzeddine, Rana, Frebel, Anna, Hansen, Terese, Sneden, Christopher, Cowan, John J., Wallerstein, George, Farrell, Elizabeth M., Venn, Kim A., Matijevič, Gal, Wyse, Rosemary F. G., Bland-Hawthorn, Joss, Chiappini, Cristina, Freeman, Kenneth C., Gibson, Brad K., Grebel, Eva K., Helmi, Amina, Kordopatis, Georges, Kunder, Andrea, Navarro, Julio, Reid, Warren, Seabroke, George, Steinmetz, Matthias, Watson, Fred
Published in The Astrophysical journal (01.04.2019)
Published in The Astrophysical journal (01.04.2019)
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Journal Article
Changes in the utilization of spinal fusion in the United States
Cowan, Jr, John A, Dimick, Justin B, Wainess, Reid, Upchurch, Jr, Gilbert R, Chandler, William F, La Marca, Frank
Published in Neurosurgery (01.07.2006)
Published in Neurosurgery (01.07.2006)
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