NEW DETECTIONS OF ARSENIC, SELENIUM, AND OTHER HEAVY ELEMENTS IN TWO METAL-POOR STARS

by Roederer, Ian U., Schatz, Hendrik, Lawler, James E., Beers, Timothy C., Cowan, John J., Frebel, Anna L., Ivans, Inese I., Sneden, Christopher, Sobeck, Jennifer S.
Published 2015

An extended halo around an ancient dwarf galaxy

by Chiti, Anirudh, Frebel, Anna, Simon, Joshua D., Erkal, Denis, Chang, Laura J., Necib, Lina, Ji, Alexander P., Jerjen, Helmut, Kim, Dongwon, Norris, John E.
Published 2022

The Most Metal-Poor Stars. I. Discovery, Data, and Atmospheric Parameters

by Frebel, Anna L., Norris, John E., Bessell, M. S., Yong, David, Christlieb, N., Barklem, P. S., Asplund, M., Murphy, Simon J., Beers, Timothy C., Ryan, S. G.
Published 2013

An extended halo around an ancient dwarf galaxy

by Chiti, Anirudh, Frebel, Anna, Simon, Joshua D, Erkal, Denis, Chang, Laura J, Necib, Lina, Ji, Alexander P, Jerjen, Helmut, Kim, Dongwon, Norris, John E
Published 2022

Detection of a Population of Carbon-enhanced Metal-poor Stars in the Sculptor Dwarf Spheroidal Galaxy*

by Simon, Joshua D., Thompson, Ian B., Shectman, Stephen A., Mateo, Mario, Bailey, John I., Crane, Jeffrey D., Walker, Matthew, Frebel, Anna L., Chiti, Anirudh
Published 2018

The R-process Alliance: first release from the southern search for R-process-enhanced stars in the galactic halo

by Hansen, Terese T., Holmbeck, Erika M., Beers, Timothy C., Placco, Vinicius M., Roederer, Ian U., Frebel, Anna, Sakari, Charli M., Simon, Joshua D., Thompson, Ian B.
Published 2020

High-Resolution Spectroscopy of Extremely Metal-Poor Stars from SDSS/SEGUE: I. Atmospheric Parameters and Chemical Compositions

by Aoki, Wako, Beers, Timothy C., Lee, Young Sun, Honda, Satoshi, Ito, Hiroko, Takada-Hidai, Masahide, Frebel, Anna L., Suda, Takuma, Fujimoto, Masayuki Y., Carollo, Daniela, Sivarani, Thirupathi
Published 2013

The Most Metal-Poor Stars. IV. The Two Populations With [Fe/H] [< over ~] -3.0

by Frebel, Anna L., Norris, John E., Yong, David, Bessell, M. S., Christlieb, N., Asplund, M., Gilmore, Gerard, Wyse, Rosemary F. G., Beers, Timothy C., Barklem, P. S., Ryan, S. G.
Published 2013

AN ELEMENTAL ASSAY OF VERY, EXTREMELY, AND ULTRA-METAL-POOR STARS

by Hansen, T., Hansen, C. J., Christlieb, N., Beers, T. C., Yong, D., Bessell, M. S., Placco, V. M., Norris, J. E., Asplund, M., Frebel, Anna L., Perez Garcia, A. E.
Published 2015

New Hubble Space Telescope Observations of Heavy Elements in Four Metal-Poor Stars

by Roederer, Ian U., Lawler, James E., Sobeck, Jennifer S., Beers, Timothy C., Cowan, John J., Frebel, Anna L., Ivans, Inese I., Schatz, Hendrik, Sneden, Christopher, Thompson, Ian B.
Published 2013

EXPLORING THE ORIGIN OF LITHIUM, CARBON, STRONTIUM, AND BARIUM WITH FOUR NEW ULTRA METAL-POOR STARS

by Hansen, T., Hansen, C. J., Christlieb, N., Yong, D., Bessell, M. S., Beers, Timothy C., Placco, V. M., Norris, J. E., Asplund, M., Frebel, Anna L., Garcia Perez, A. E.
Published 2015

The R-Process Alliance: chemical abundances for a trio of R-process-enhanced stars -- one strong, one moderate, and one mild

by Cain, Madelyn, Frebel, Anna, Gull, Maude, Ji, Alexander P., Placco, Vinicius M., Beers, Timothy C., Meléndez, Jorge, Ezzeddine, Rana, Casey, Andrew R., Hansen, Terese T., Roederer, Ian U., Sakari, Charli
Published 2020

Detection of Pb II in the Ultraviolet Spectra of Three Metal-poor Stars

by Roederer, Ian U., Lawler, James E., Holmbeck, Erika M., Beers, Timothy C., Ezzeddine, Rana, Frebel, Anna, Hansen, Terese T., Ivans, Inese I., Karakas, Amanda I., Placco, Vinicius M., Sakari, Charli M.
Published 2022

The R-Process Alliance: Chemodynamically Tagged Groups of Halo r-process-enhanced Stars Reveal a Shared Chemical-evolution History

by Gudin, Dmitrii, Shank, Derek, Beers, Timothy C., Yuan, Zhen, Limberg, Guilherme, Roederer, Ian U., Placco, Vinicius, Holmbeck, Erika M., Dietz, Sarah, Rasmussen, Kaitlin C., Hansen, Terese T., Sakari, Charli M., Ezzeddine, Rana, Frebel, Anna
Published 2022

The R-Process Alliance: Chemodynamically Tagged Groups of Halo r-process-enhanced Stars Reveal a Shared Chemical-evolution History

by Gudin, Dmitrii, Shank, Derek, Beers, Timothy C, Yuan, Zhen, Limberg, Guilherme, Roederer, Ian U, Placco, Vinicius, Holmbeck, Erika M, Dietz, Sarah, Rasmussen, Kaitlin C, Hansen, Terese T, Sakari, Charli M, Ezzeddine, Rana, Frebel, Anna
Published 2022

The r-process Pattern of a Bright, Highly r -process-enhanced Metal-poor Halo Star at [Fe/H ] ~ -2

by Sakari, Charli M., Placco, Vinicius M., Hansen, Terese, Holmbeck, Erika M., Beers, Timothy C., Roederer, Ian U., Venn, Kim A., Wallerstein, George, Davis, Christopher Evan, Farrell, Elizabeth M., Yong, David, Frebel, Anna L.
Published 2018

THE CHEMICAL COMPOSITIONS OF VERY METAL-POOR STARS HD 122563 AND HD 140283: A VIEW FROM THE INFRARED

by Sneden, Christopher, Kim, Hwihyun, Mace, Gregory N., Kaplan, Kyle F., Lee, Hye-In, Oh, Heeyoung, Oh, Jae Sok, Pak, Soojong, Park, Chan, Pavel, Michael D., Yuk, In-Soo, Jaffe, Daniel T., Afsar, Melike, Frebel, Anna L.
Published 2016

A single low-energy, iron-poor supernova as the source of metals in the star SMSS J031300.36−670839.3

by Keller, Stefan C., Bessell, M. S., Frebel, Anna L., Casey, Andrew R., Asplund, M., Jacobson, Heather, Lind, K., Norris, J. E., Yong, D., Heger, A., Magic, Zazralt, Da Costa, G. S., Schmidt, B. P., Tisserand, P.
Published 2014

Cosmological Insights into the Early Accretion of r -process-enhanced Stars. I. A Comprehensive Chemodynamical Analysis of LAMOST J1109+0754

by Mardini, Mohammad K, Placco, Vinicius M, Meiron, Yohai, Ishchenko, Marina, Avramov, Branislav, Mazzarini, Matteo, Berczik, Peter, Sedda, Manuel Arca, Beers, Timothy C, Frebel, Anna, Taani, Ali, Donnari, Martina, Al-Wardat, Mashhoor A, Zhao, Gang
Published 2022

RAVE J203843.2-002333: The First Highly R-process-enhanced Star Identified in the RAVE Survey

by Placco, Vinicius M., Holmbeck, Erika M., Beers, Timothy C., Surman, Rebecca A., Points, Sean D., Kaleida, Catherine C., Hansen, Terese T., Sakari, Charli M., Casey, Andrew R., Frebel, Anna L., Ji, Alexander Pung, Ezzeddine, Rana
Published 2017