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The DECam MAGIC Survey: Spectroscopic Follow-up of the Most Metal-poor Stars in the Distant Milky Way Halo*

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Cluster Ages to Reconstruct the Milky Way Assembly (CARMA)

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New Stellar Parameters, Metallicities, and Elemental Abundance Ratios for 311 Metal-poor Stars

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MINCE

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Unevolved Li-rich stars at low metallicity: A possible formation pathway through novae

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Astronomy & Astrophysics 699 A171 (2025)
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The Pristine Inner Galaxy Survey (PIGS)

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Probing Abundance Variations Among Multiple Stellar Populations in the Metal-poor Globular Cluster NGC 2298 Using Gemini-South/GHOST*

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The R-Process Alliance: Hunting for gold in the near-UV spectrum of 2MASS J05383296–5904280

Terese T. Hansen, Ian U. Roederer, Shivani P. Shah, Rana Ezzeddine, Timothy C. Beers, Anna Frebel, Erika M. Holmbeck, Vinicius M. Placco, Charli M. Sakari, Alexander Ji, Jennifer L. Marshall, Mohammad K. Mardini and Anirudh Chiti
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Early r-process Enrichment and Hierarchical Assembly Across the Sagittarius Dwarf Galaxy*

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The Pristine survey

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The R-Process Alliance: Exploring the cosmic scatter among ten r-process sites with stellar abundances

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A Detailed Chemical Analysis of the Red Giant Orbiting Gaia BH3: From Lithium to Thorium*

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Gaia-Sausage-Enceladus star formation history as revealed by detailed elemental abundances

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https://doi.org/10.1051/0004-6361/202450827

The R-Process Alliance: 2MASS J22132050–5137385, the Star with the Highest-known r-process Enhancement at [Eu/Fe] = +2.45*

Ian U. Roederer, Timothy C. Beers, Kohei Hattori, Vinicius M. Placco, Terese T. Hansen, Rana Ezzeddine, Anna Frebel, Erika M. Holmbeck and Charli M. Sakari
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The Gaia RVS benchmark stars

E. Caffau, D. Katz, A. Gómez, P. Bonifacio, R. Lallement, P. Sartoretti, L. Sbordone, M. Spite, A. Mucciarelli, R. Ibata, L. Chemin, F. Thévenin, P. Panuzzo, N. Leclerc, P. François, H.-G. Ludwig, L. Monaco, M. Haywood and C. Soubiran
Astronomy & Astrophysics 683 A72 (2024)
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The GAPS programme at TNG

I. Carleo, L. Malavolta, S. Desidera, D. Nardiello, S. Wang, D. Turrini, A. F. Lanza, M. Baratella, F. Marzari, S. Benatti, K. Biazzo, A. Bieryla, R. Brahm, M. Bonavita, K. A. Collins, C. Hellier, D. Locci, M. J. Hobson, A. Maggio, G. Mantovan, S. Messina, M. Pinamonti, J. E. Rodriguez, A. Sozzetti, K. Stassun, et al.
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On the Pair-instability Supernova Origin of J1010+2358*

Ása Skúladóttir, Ioanna Koutsouridou, Irene Vanni, Anish M. Amarsi, Romain Lucchesi, Stefania Salvadori and David S. Aguado
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Chemical Homogeneity of Wide Binary Systems: An Approach from Near-Infrared Spectroscopy

Dongwook Lim, Andreas J. Koch-Hansen, Seungsoo Hong, Sang-Hyun Chun and Young-Wook Lee
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MgAl burning chain in ω Centauri

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Astronomy & Astrophysics 681 A54 (2024)
https://doi.org/10.1051/0004-6361/202347834

Metallicities for more than 10 million stars derived from Gaia BP/RP spectra

T. Xylakis-Dornbusch, N. Christlieb, T. T. Hansen, T. Nordlander, K. B. Webber and J. Marshall
Astronomy & Astrophysics 687 A177 (2024)
https://doi.org/10.1051/0004-6361/202348885

A Walk on the Retrograde Side (WRS) project

E. Ceccarelli, D. Massari, A. Mucciarelli, M. Bellazzini, A. Nunnari, F. Cusano, C. Lardo, D. Romano, I. Ilyin and A. Stokholm
Astronomy & Astrophysics 684 A37 (2024)
https://doi.org/10.1051/0004-6361/202348332

Multiple populations and a CH star found in the 300S globular cluster stellar stream

Sam A Usman, Alexander P Ji, Ting S Li, Andrew B Pace, Lara R Cullinane, Gary S Da Costa, Sergey E Koposov, Geraint F Lewis, Daniel B Zucker, Vasily Belokurov, Joss Bland-Hawthorn, Peter S Ferguson, Terese T Hansen, Guilherme Limberg, Sarah L Martell, Madeleine McKenzie and Joshua D Simon
Monthly Notices of the Royal Astronomical Society 529 (3) 2413 (2024)
https://doi.org/10.1093/mnras/stae185

Metal-poor stars observed with the Magellan Telescope – IV. Neutron-capture element signatures in 27 main-sequence stars

Mohammad K Mardini, Anna Frebel, Leyatt Betre, Heather Jacobson, John E Norris and Norbert Christlieb
Monthly Notices of the Royal Astronomical Society 528 (2) 2912 (2024)
https://doi.org/10.1093/mnras/stad3925

GHOST commissioning science results – II: a very metal-poor star witnessing the early galactic assembly

Federico Sestito, Christian R Hayes, Kim A Venn, Jaclyn Jensen, Alan W McConnachie, John Pazder, Fletcher Waller, Anke Ardern-Arentsen, Pascale Jablonka, Nicolas F Martin, Tadafumi Matsuno, Julio F Navarro, Else Starkenburg, Sara Vitali, John Bassett, Trystyn A M Berg, Ruben Diaz, Michael L Edgar, Veronica Firpo, Manuel Gomez-Jimenez, Venu Kalari, Sam Lambert, Jon Lawrence, Gordon Robertson, Roque Ruiz-Carmona, et al.
Monthly Notices of the Royal Astronomical Society 528 (3) 4838 (2024)
https://doi.org/10.1093/mnras/stae244

Improving metallicity estimates for very metal-poor stars in the Gaia DR3 GSP-Spec catalog

Tadafumi Matsuno, Else Starkenburg, Eduardo Balbinot and Amina Helmi
Astronomy & Astrophysics 685 A59 (2024)
https://doi.org/10.1051/0004-6361/202245762

The 33 M⊙ black hole Gaia BH3 is part of the disrupted ED-2 star cluster

E. Balbinot, E. Dodd, T. Matsuno, C. Lardo, A. Helmi, P. Panuzzo, T. Mazeh, B. Holl, E. Caffau, A. Jorissen, C. Babusiaux, P. Gavras, Ł. Wyrzykowski, L. Eyer, N. Leclerc, A. Bombrun, N. Mowlavi, G. M. Seabroke, I. Cabrera-Ziri, T. M. Callingham, T. Ruiz-Lara and E. Starkenburg
Astronomy & Astrophysics 687 L3 (2024)
https://doi.org/10.1051/0004-6361/202450425

The true nature of HE 0057-5959, the most metal-poor, Li-rich star

A. Mucciarelli, P. Bonifacio, L. Monaco, M. Salaris and M. Matteuzzi
Astronomy & Astrophysics 689 A89 (2024)
https://doi.org/10.1051/0004-6361/202449290

Revealing the chemical structure of the Magellanic Clouds with APOGEE. I. Calculating individual stellar ages of RGB stars in the Large Magellanic Cloud

Joshua T Povick, David L Nidever, Pol Massana, Jamie Tayar, Knut A G Olsen, Sten Hasselquist, Maria-Rosa L Cioni, Christian Nitschelm, Ricardo Carrera, Yumi Choi, Alexandre Roman-Lopes, Steven R Majewski, Andrés Almeida, Katia Cunha and Verne V Smith
Monthly Notices of the Royal Astronomical Society 533 (3) 3685 (2024)
https://doi.org/10.1093/mnras/stae1949

TESS Hunt for Young and Maturing Exoplanets (THYME). XI. An Earth-sized Planet Orbiting a Nearby, Solar-like Host in the 400 Myr Ursa Major Moving Group

Benjamin K. Capistrant, Melinda Soares-Furtado, Andrew Vanderburg, Alyssa Jankowski, Andrew W. Mann, Gabrielle Ross, Gregor Srdoc, Natalie R. Hinkel, Juliette Becker, Christian Magliano, Mary Anne Limbach, Alexander P. Stephan, Andrew C. Nine, Benjamin M. Tofflemire, Adam L. Kraus, Steven Giacalone, Joshua N. Winn, Allyson Bieryla, Luke G. Bouma, David R. Ciardi, Karen A. Collins, Giovanni Covone, Zoë L. de Beurs, Chelsea X. Huang, Jon M. Jenkins, et al.
The Astronomical Journal 167 (2) 54 (2024)
https://doi.org/10.3847/1538-3881/ad1039

The Pristine Inner Galaxy Survey (PIGS)

Federico Sestito, Sara Vitali, Paula Jofre, Kim A. Venn, David S. Aguado, Claudia Aguilera-Gómez, Anke Ardern-Arentsen, Danielle de Brito Silva, Raymond Carlberg, Camilla J. L. Eldridge, Felipe Gran, Vanessa Hill, Pascale Jablonka, Georges Kordopatis, Nicolas F. Martin, Tadafumi Matsuno, Samuel Rusterucci, Else Starkenburg and Akshara Viswanathan
Astronomy & Astrophysics 689 A201 (2024)
https://doi.org/10.1051/0004-6361/202450553

The Rise of the r-process in the Gaia-Sausage/Enceladus Dwarf Galaxy ∗

Xiaowei 筱葳 Ou 欧, Alexander P. Ji, Anna Frebel, Rohan P. Naidu and Guilherme Limberg
The Astrophysical Journal 974 (2) 232 (2024)
https://doi.org/10.3847/1538-4357/ad6f9b

High speed stars

E. Caffau, P. Bonifacio, L. Monaco, L. Sbordone, M. Spite, P. François, P. Panuzzo, P. Sartoretti, L. Chemin, F. Thévenin and A. Mucciarelli
Astronomy & Astrophysics 684 L4 (2024)
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A comparative high-resolution spectroscopic analysis of in situ and accreted globular clusters

E. Ceccarelli, A. Mucciarelli, D. Massari, M. Bellazzini and T. Matsuno
Astronomy & Astrophysics 691 A226 (2024)
https://doi.org/10.1051/0004-6361/202451377

The earliest phases of CNO enrichment in galaxies

M. Rossi, D. Romano, A. Mucciarelli, E. Ceccarelli, D. Massari and G. Zamorani
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HR-GO

T. M. Sitnova, Z. Yuan, T. Matsuno, L. I. Mashonkina, S. A. Alexeeva, E. Holmbeck, F. Sestito, L. Lombardo, P. Banerjee, N. F. Martin and F. Jiang
Astronomy & Astrophysics 690 A331 (2024)
https://doi.org/10.1051/0004-6361/202450981

BD+44°493: Chemo-dynamical Analysis and Constraints on Companion Planetary Masses from WIYN/NEID Spectroscopy*

Vinicius M. Placco, Arvind F. Gupta, Felipe Almeida-Fernandes, Sarah E. Logsdon, Jayadev Rajagopal, Erika M. Holmbeck, Ian U. Roederer, John Della Costa, Pipa Fernandez, Eli Golub, Jesus Higuera, Yatrik Patel, Susan Ridgway and Heidi Schweiker
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The Pristine survey – XXII. A serendipitous discovery of an extremely Li-rich very metal-poor giant and a new method of 6Li/7Li isotope measurement

T M Sitnova, T Matsuno, Z Yuan, N F Martin, P Banerjee, F Sestito, K A Venn and J I González Hernández
Monthly Notices of the Royal Astronomical Society 526 (4) 5976 (2023)
https://doi.org/10.1093/mnras/stad3141

High-resolution Chemical Abundances of the Nyx Stream

Shuyu 书玉 Wang 汪, Lina Necib, Alexander P. Ji, Xiaowei Ou, Mariangela Lisanti, Mithi A. C. de los Reyes, Allison L. Strom and Mimi Truong
The Astrophysical Journal 955 (2) 129 (2023)
https://doi.org/10.3847/1538-4357/acec4d

GHOST Commissioning Science Results: Identifying a New Chemically Peculiar Star in Reticulum II

Christian R. Hayes, Kim A. Venn, Fletcher Waller, Jaclyn Jensen, Alan W. McConnachie, John Pazder, Federico Sestito, André Anthony, Gabriella Baker, John Bassett, Joao Bento, Trystyn Berg, Gregory Burley, Jurek Brzeski, Scott Case, Edward Chapin, Timothy Chin, Eric Chisholm, Vladimir Churilov, Adam Densmore, Ruben Diaz, Jennifer Dunn, Michael Edgar, Tony Farrell, Veronica Firpo, et al.
The Astrophysical Journal 955 (1) 17 (2023)
https://doi.org/10.3847/1538-4357/acebc0

PISN-explorer: hunting the descendants of very massive first stars

D S Aguado, S Salvadori, Á Skúladóttir, et al.
Monthly Notices of the Royal Astronomical Society 520 (1) 866 (2023)
https://doi.org/10.1093/mnras/stad164

The Pristine Inner Galaxy Survey (PIGS) VII: a discovery of the first inner Galaxy CEMP-r/s star

L Mashonkina, A Arentsen, D S Aguado, et al.
Monthly Notices of the Royal Astronomical Society 523 (2) 2111 (2023)
https://doi.org/10.1093/mnras/stad1536

The chemical DNA of the Magellanic Clouds

A. Mucciarelli, A. Minelli, C. Lardo, D. Massari, M. Bellazzini, D. Romano, L. Origlia and F. R. Ferraro
Astronomy & Astrophysics 677 A61 (2023)
https://doi.org/10.1051/0004-6361/202347120

The extended ‘stellar halo’ of the Ursa Minor dwarf galaxy

Federico Sestito, Daria Zaremba, Kim A Venn, Lina D’Aoust, Christian Hayes, Jaclyn Jensen, Julio F Navarro, Pascale Jablonka, Emma Fernández-Alvar, Jennifer Glover, Alan W McConnachie and André-Nicolas Chené
Monthly Notices of the Royal Astronomical Society 525 (2) 2875 (2023)
https://doi.org/10.1093/mnras/stad2427

Probing the early Milky Way with GHOST spectra of an extremely metal-poor star in the Galactic disc

Anya Dovgal, Kim A Venn, Federico Sestito, Christian R Hayes, Alan W McConnachie, Julio F Navarro, Vinicius M Placco, Else Starkenburg, Nicolas F Martin, John S Pazder, Kristin Chiboucas, Emily Deibert, Roberto Gamen, Jeong-Eun Heo, Venu M Kalari, Eder Martioli, Siyi Xu, Ruben Diaz, Manuel Gomez-Jimenez, David Henderson, Pablo Prado, Carlos Quiroz, J Gordon Robertson, Roque Ruiz-Carmona, Chris Simpson, et al.
Monthly Notices of the Royal Astronomical Society 527 (3) 7810 (2023)
https://doi.org/10.1093/mnras/stad3673

SPLUS J142445.34–254247.1: An r-process–enhanced, Actinide-boost, Extremely Metal-poor Star Observed with GHOST

Vinicius M. Placco, Felipe Almeida-Fernandes, Erika M. Holmbeck, Ian U. Roederer, Mohammad K. Mardini, Christian R. Hayes, Kim Venn, Kristin Chiboucas, Emily Deibert, Roberto Gamen, Jeong-Eun Heo, Miji Jeong, Venu Kalari, Eder Martioli, Siyi Xu, Ruben Diaz, Manuel Gomez-Jimenez, David Henderson, Pablo Prado, Carlos Quiroz, Roque Ruiz-Carmona, Chris Simpson, Cristian Urrutia, Alan W. McConnachie, John Pazder, et al.
The Astrophysical Journal 959 (1) 60 (2023)
https://doi.org/10.3847/1538-4357/ad077e

Discovery of a New Local Group Dwarf Galaxy Candidate in UNIONS: Boötes V

Simon E. T. Smith, Jaclyn Jensen, Joel Roediger, Federico Sestito, Christian R. Hayes, Alan W. McConnachie, Jean-Charles Cuillandre, Stephen Gwyn, Eugene Magnier, Ken Chambers, Francois Hammer, Mike J. Hudson, Nicolas Martin, Julio Navarro and Douglas Scott
The Astronomical Journal 166 (2) 76 (2023)
https://doi.org/10.3847/1538-3881/acdd77

Applied Machine-Learning Models to Identify Spectral Sub-Types of M Dwarfs from Photometric Surveys

Sirinrat Sithajan and Sukanya Meethong
Publications of the Astronomical Society of the Pacific 135 (1046) 044502 (2023)
https://doi.org/10.1088/1538-3873/acc974

Effective Temperature Estimations from Line Depth Ratios in the H- and K-band Spectra of IGRINS

Melike Afşar, Zeynep Bozkurt, Gamze Böcek Topcu, Sergen Özdemir, Christopher Sneden, Gregory N. Mace, Daniel T. Jaffe and Ricardo López-Valdivia
The Astrophysical Journal 949 (2) 86 (2023)
https://doi.org/10.3847/1538-4357/acc946

Element abundance patterns in stars indicate fission of nuclei heavier than uranium

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 and Charli M. Sakari
Science 382 (6675) 1177 (2023)
https://doi.org/10.1126/science.adf1341

Stars on the edge: Galactic tides and the outskirts of the Sculptor dwarf spheroidal

Federico Sestito, Joel Roediger, Julio F Navarro, Jaclyn Jensen, Kim A Venn, Simon E T Smith, Christian Hayes and Alan W McConnachie
Monthly Notices of the Royal Astronomical Society 523 (1) 123 (2023)
https://doi.org/10.1093/mnras/stad1417

A strontium-rich ultra-metal-poor star in the Atari disc component

Mohammad K Mardini, Anna Frebel and Anirudh Chiti
Monthly Notices of the Royal Astronomical Society: Letters 529 (1) L60 (2023)
https://doi.org/10.1093/mnrasl/slad197

The metallicity distribution in the core of the Sagittarius dwarf spheroidal: Minimising the metallicity biases

Alice Minelli, Michele Bellazzini, Alessio Mucciarelli, et al.
Astronomy & Astrophysics 669 A54 (2023)
https://doi.org/10.1051/0004-6361/202244890

The Pristine survey – XIX. Cu and Zn abundances in metal-poor giants

E Caffau, L Lombardo, L Mashonkina, et al.
Monthly Notices of the Royal Astronomical Society 518 (3) 3796 (2022)
https://doi.org/10.1093/mnras/stac3372

Discovery of a thin lithium plateau among metal-poor red giant branch stars

A. Mucciarelli, L. Monaco, P. Bonifacio, M. Salaris, M. Deal, M. Spite, O. A. Richard and R. Lallement
Astronomy & Astrophysics 661 A153 (2022)
https://doi.org/10.1051/0004-6361/202142889

Abundance of zirconium in the globular cluster 47 Tucanae: a possible Zr–Na correlation?

E. Kolomiecas, V. Dobrovolskas, A. Kučinskas, P. Bonifacio and S. Korotin
Astronomy & Astrophysics 660 A46 (2022)
https://doi.org/10.1051/0004-6361/202141970

The Pristine Inner Galaxy Survey (PIGS) – V. A chemo-dynamical investigation of the early assembly of the Milky Way with the most metal-poor stars in the bulge

Federico Sestito, Kim A Venn, Anke Arentsen, David Aguado, Collin L Kielty, Carmela Lardo, Nicolas F Martin, Julio F Navarro, Else Starkenburg, Fletcher Waller, Raymond G Carlberg, Patrick François, Jonay I González Hernández, Georges Kordopatis, Sara Vitali and Zhen Yuan
Monthly Notices of the Royal Astronomical Society 518 (3) 4557 (2022)
https://doi.org/10.1093/mnras/stac3332

Testing Model-determined Temperatures in the Hyades: A Bayesian Approach

Elizabeth J. Jeffery, Benjamin J. Taylor and Michael D. Joner
The Astrophysical Journal 936 (2) 153 (2022)
https://doi.org/10.3847/1538-4357/ac8474

The Mg–K Anticorrelation in ω Centauri

Deimer Antonio Alvarez Garay, Alessio Mucciarelli, Carmela Lardo, Michele Bellazzini and Thibault Merle
The Astrophysical Journal Letters 928 (1) L11 (2022)
https://doi.org/10.3847/2041-8213/ac5ccf

The Pristine survey – XVII. The C-19 stream is dynamically hot and more extended than previously thought

Zhen Yuan, Nicolas F Martin, Rodrigo A Ibata, et al.
Monthly Notices of the Royal Astronomical Society 514 (2) 1664 (2022)
https://doi.org/10.1093/mnras/stac1399

The Complex Behaviour of s-Process Element Abundances at Young Ages

Valentina D’Orazi, Martina Baratella, Maria Lugaro, Laura Magrini and Marco Pignatari
Universe 8 (2) 110 (2022)
https://doi.org/10.3390/universe8020110

Detailed investigation of two high‐speed evolved Galactic stars

Aroa del Mar Matas Pinto, Elisabetta Caffau, Patrick François, Monique Spite, Piercarlo Bonifacio, Shinya Wanajo, Wako Aoki, Lorenzo Monaco, Takuma Suda, François Spite, Luca Sbordone, Linda Lombardo and Alessio Mucciarelli
Astronomische Nachrichten (2021)
https://doi.org/10.1002/asna.20210032