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Influence of Collisions with Hydrogen Atoms on Non-LTE Effects for K I and Ca II in Stellar Atmospheres

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ALMA and VLA reveal the lukewarm chromospheres of the nearby red supergiants Antares and Betelgeuse

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A plethora of new R Coronae Borealis stars discovered from a dedicated spectroscopic follow-up survey

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Spectroscopic and photometric time series of the bright RRc star T Sex

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The CARMENES search for exoplanets around M dwarfs

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Bayesian calibration of the mixing length parameter αML and of the helium-to-metal enrichment ratio ΔY/ΔZ with open clusters: the Hyades test-bed

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Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars

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The chemical evolution of the dwarf spheroidal galaxy Sextans

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The Gaia-ESO Survey: Spectroscopic-asteroseismic analysis of K2 stars in Gaia-ESO

C. C. Worley, P. Jofré, B. Rendle, A. Miglio, L. Magrini, D. Feuillet, A. Gavel, R. Smiljanic, K. Lind, A. Korn, G. Gilmore, S. Randich, A. Hourihane, A. Gonneau, P. Francois, J. Lewis, G. Sacco, A. Bragaglia, U. Heiter, S. Feltzing, T. Bensby, M. Irwin, E. Gonzalez Solares, D. Murphy, A. Bayo, et al.
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Superflares on the late-type giant KIC 2852961

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The Pristine Inner Galaxy Survey (PIGS) II: Uncovering the most metal-poor populations in the inner Milky Way

Anke Arentsen, Else Starkenburg, Nicolas F Martin, David S Aguado, Daniel B Zucker, Carlos Allende Prieto, Vanessa Hill, Kim A Venn, Raymond G Carlberg, Jonay I González Hernández, Lyudmila I Mashonkina, Julio F Navarro, Rubén Sánchez-Janssen, Mathias Schultheis, Guillaume F Thomas, Kris Youakim, Geraint F Lewis, Jeffrey D Simpson, Zhen Wan, Roger E Cohen, Doug Geisler and Julia E O’Connell
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Chemical Composition of Bright Stars in the Continuous Viewing Zone of the TESS Space Mission

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TOI-503: The First Known Brown-dwarf Am-star Binary from the TESS Mission*

Ján Šubjak, Rishikesh Sharma, Theron W. Carmichael, Marshall C. Johnson, Erica J. Gonzales, Elisabeth Matthews, Henri M. J. Boffin, Rafael Brahm, Priyanka Chaturvedi, Abhijit Chakraborty, David R. Ciardi, Karen A. Collins, Massimiliano Esposito, Malcolm Fridlund, Tianjun Gan, Davide Gandolfi, Rafael A. García, Eike Guenther, Artie Hatzes, David W. Latham, Stéphane Mathis, Savita Mathur, Carina M. Persson, Howard M. Relles, Joshua E. Schlieder, et al.
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A new mass-loss rate prescription for red supergiants

Emma R Beasor, Ben Davies, Nathan Smith, Jacco Th van Loon, Robert D Gehrz and Donald F Figer
Monthly Notices of the Royal Astronomical Society 492 (4) 5994 (2020)
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Age dating of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi

William J. Chaplin, Aldo M. Serenelli, Andrea Miglio, et al.
Nature Astronomy 4 (4) 382 (2020)
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Short-term Variability of Evolved Massive Stars with TESS. II. A New Class of Cool, Pulsating Supergiants

Trevor Z. Dorn-Wallenstein, Emily M. Levesque, Kathryn F. Neugent, James R. A. Davenport, Brett M. Morris and Keyan Gootkin
The Astrophysical Journal 902 (1) 24 (2020)
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Phosphorus-rich stars with unusual abundances are challenging theoretical predictions

Thomas Masseron, D. A. García-Hernández, Raúl Santoveña, et al.
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Differential abundances of open clusters and their tidal tails: Chemical tagging and chemical homogeneity

L. Casamiquela, Y. Tarricq, C. Soubiran, et al.
Astronomy & Astrophysics 635 A8 (2020)
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Most lithium-rich low-mass evolved stars revealed as red clump stars by asteroseismology and spectroscopy

Hong-Liang Yan, Yu-Tao Zhou, Xianfei Zhang, et al.
Nature Astronomy 5 (1) 86 (2020)
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The GALAH Survey: non-LTE departure coefficients for large spectroscopic surveys

A. M. Amarsi, K. Lind, Y. Osorio, T. Nordlander, M. Bergemann, H. Reggiani, E. X. Wang, S. Buder, M. Asplund, P. S. Barklem, A. Wehrhahn, Á. Skúladóttir, C. Kobayashi, A. I. Karakas, X. D. Gao, J. Bland-Hawthorn, G. M. De Silva, J. Kos, G. F. Lewis, S. L. Martell, S. Sharma, J. D. Simpson, D. B. Zucker, K. Čotar and J. Horner
Astronomy & Astrophysics 642 A62 (2020)
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SOFIA-EXES Observations of Betelgeuse during the Great Dimming of 2019/2020

Graham M. Harper, Curtis N. DeWitt, Matthew J. Richter, Edward F. Guinan, Richard Wasatonic, Nils Ryde, Edward J. Montiel and Amanda J. Townsend
The Astrophysical Journal Letters 893 (1) L23 (2020)
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Chemical Properties of the Local Galactic Disk and Halo. I. Fundamental Properties of 1544 Nearby, High Proper-motion M Dwarfs and Subdwarfs

Neda Hejazi, Sébastien Lépine, Derek Homeier, R. Michael Rich and Michael M. Shara
The Astronomical Journal 159 (1) 30 (2020)
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Trans-iron Ge, As, Se, and heavier elements in the dwarf metal-poor stars HD 19445, HD 84937, HD 94028, HD 140283, and HD 160617

R. C. Peterson, B. Barbuy and M. Spite
Astronomy & Astrophysics 638 A64 (2020)
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The Pristine Inner Galaxy Survey (PIGS) I: tracing the kinematics of metal-poor stars in the Galactic bulge

A Arentsen, E Starkenburg, N F Martin, V Hill, R Ibata, A Kunder, M Schultheis, K A Venn, D B Zucker, D Aguado, R Carlberg, J I González Hernández, C Lardo, N Longeard, K Malhan, J F Navarro, R Sánchez-Janssen, F Sestito, G Thomas, K Youakim, G F Lewis, J D Simpson and Z Wan
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Eclipsing binaries in the OGLE variable star catalogue: long-period evolved systems

Barış Hoyman, Sara Bulut, Orkun Özdarcan and Ömür Çakırlı
Monthly Notices of the Royal Astronomical Society 496 (1) 550 (2020)
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The Pristine survey – IX. CFHT ESPaDOnS spectroscopic analysis of 115 bright metal-poor candidate stars

Kim A Venn, Collin L Kielty, Federico Sestito, Else Starkenburg, Nicolas Martin, David S Aguado, Anke Arentsen, Piercarlo Bonifacio, Elisabetta Caffau, Vanessa Hill, Pascale Jablonka, Carmela Lardo, Lyudmilla Mashonkina, Julio F Navarro, Chris Sneden, Guillaume Thomas, Kris Youakim, Jonay I González-Hernández, Rubén Sánchez Janssen, Ray Carlberg and Khyati Malhan
Monthly Notices of the Royal Astronomical Society 492 (3) 3241 (2020)
https://doi.org/10.1093/mnras/stz3546

Comparison of the Asteroseismic Mass Scale of Red Clump Giants with Photometric Mass Estimates

Deokkeun An, Marc H. Pinsonneault, Donald M. Terndrup and Chul Chung
The Astrophysical Journal 879 (2) 81 (2019)
https://doi.org/10.3847/1538-4357/ab23ed

The First Metallicity Study of M83 Using the Integrated UV Light of Star Clusters*

Svea Hernandez, Søren Larsen, Alessandra Aloisi, Danielle A. Berg, William P. Blair, Andrew J. Fox, Timothy M. Heckman, Bethan L. James, Knox S. Long, Evan D. Skillman and Bradley C. Whitmore
The Astrophysical Journal 872 (2) 116 (2019)
https://doi.org/10.3847/1538-4357/ab017a

Evaluation of the Recent Atomic Data for Fe i Lines Based on Solar and Stellar Spectra

T. Ryabchikova, N. Piskunov and T. Sitnova
Solar Physics 294 (11) (2019)
https://doi.org/10.1007/s11207-019-1543-2

Diffuse Interstellar Bands (DIBs) as a tracer of warp in the Third Galactic Quadrant: Preliminary Results

A N Istiqomah, L Puspitarini and M I Arifyanto
Journal of Physics: Conference Series 1231 (1) 012016 (2019)
https://doi.org/10.1088/1742-6596/1231/1/012016

WASP-180Ab: Doppler tomography of a hot Jupiter orbiting the primary star in a visual binary

L Y Temple, C Hellier, D R Anderson, et al.
Monthly Notices of the Royal Astronomical Society 490 (2) 2467 (2019)
https://doi.org/10.1093/mnras/stz2632

Ultra metal-poor stars: improved atmospheric parameters and NLTE abundances of magnesium and calcium

A Frebel, R Ezzeddine, L I Mashonkina and T M Sitnova
Monthly Notices of the Royal Astronomical Society 485 (3) 3527 (2019)
https://doi.org/10.1093/mnras/stz626

Calibration of mixing-length parameterαfor MLT and FST models by matching with CO5BOLD models

T. Sonoi, H.-G. Ludwig, M.-A. Dupret, et al.
Astronomy & Astrophysics 621 A84 (2019)
https://doi.org/10.1051/0004-6361/201833495

Disentangling the Planet from the Star in Late-Type M Dwarfs: A Case Study of TRAPPIST-1g

H. R. Wakeford, N. K. Lewis, J. Fowler, G. Bruno, T. J. Wilson, S. E. Moran, J. Valenti, N. E. Batalha, J. Filippazzo, V. Bourrier, S. M. Hörst, S. M. Lederer and J. de Wit
The Astronomical Journal 157 (1) 11 (2019)
https://doi.org/10.3847/1538-3881/aaf04d

Pushing Automated Abundance Derivations into the Cool Dwarf Regime: A Test Using Three G and Two K Stars in Praesepe∗

Marwan Gebran, Marcel A. Agüeros, Keith Hawkins, Simon C. Schuler and Brett M. Morris
The Astrophysical Journal 871 (2) 142 (2019)
https://doi.org/10.3847/1538-4357/aaf721

Triangulum–Andromeda Overdensity: a Region with a Complex Stellar Population

J. V. Sales Silva, H. D. Perottoni, K. Cunha, H. J. Rocha-Pinto, F. Almeida-Fernandes, Diogo Souto and S. R. Majewski
The Astrophysical Journal 886 (2) 113 (2019)
https://doi.org/10.3847/1538-4357/ab4ada

Extrinsically metal-poor stars: photospheric chemical depletion in post-AGB/post-RGB stars in the Large Magellanic Cloud

Devika Kamath and Hans Van Winckel
Monthly Notices of the Royal Astronomical Society 486 (3) 3524 (2019)
https://doi.org/10.1093/mnras/stz1076

Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code

T. Masseron, D. A. García-Hernández, Sz. Mészáros, O. Zamora, F. Dell’Agli, C. Allende Prieto, B. Edvardsson, M. Shetrone, B. Plez, J. G. Fernández-Trincado, K. Cunha, H. Jönsson, D. Geisler, T. C. Beers and R. E. Cohen
Astronomy & Astrophysics 622 A191 (2019)
https://doi.org/10.1051/0004-6361/201834550

Magnetic topologies of young suns: the weak-line T Tauri stars TWA 6 and TWA 8A

C A Hill, C P Folsom, J-F Donati, G J Herczeg, G A J Hussain, S H P Alencar and S G Gregory
Monthly Notices of the Royal Astronomical Society 484 (4) 5810 (2019)
https://doi.org/10.1093/mnras/stz403

Global 3D radiation-hydrodynamic simulations of gas accretion: Opacity-dependent growth of Saturn-mass planets

M. Schulik, A. Johansen, B. Bitsch and E. Lega
Astronomy & Astrophysics 632 A118 (2019)
https://doi.org/10.1051/0004-6361/201935473

Contribution of Type Ia Supernovae to the Chemical Enrichment of the Ultra-Faint Dwarf Galaxy Boötes I

Yu. V. Pakhomov, L. I. Mashonkina, T. M. Sitnova and P. Jablonka
Astronomy Letters 45 (5) 259 (2019)
https://doi.org/10.1134/S1063773719050050

Discovery of a nitrogen-enhanced mildly metal-poor binary system: Possible evidence for pollution from an extinct AGB star

José G. Fernández-Trincado, Ronald Mennickent, Mauricio Cabezas, Olga Zamora, Sarah L. Martell, Timothy C. Beers, Vinicius M. Placco, David M. Nataf, Szabolcs Mészáros, Dante Minniti, Dominik R. G. Schleicher, Baitian Tang, Angeles Pérez-Villegas, Annie C. Robin and Céline Reylé
Astronomy & Astrophysics 631 A97 (2019)
https://doi.org/10.1051/0004-6361/201935369

Characterization of a Sample of Southern M Dwarfs Using Harps and X-shooter Spectra

M. K. Kuznetsov, C. del Burgo, Ya. V. Pavlenko and J. Frith
The Astrophysical Journal 878 (2) 134 (2019)
https://doi.org/10.3847/1538-4357/ab1fe9

Variable Stars in Terzan 5: Additional Evidence of Multi-age and Multi-iron Stellar Populations*

L. Origlia, A. Mucciarelli, G. Fiorentino, F. R. Ferraro, E. Dalessandro, B. Lanzoni, R. M. Rich, D. Massari, R. Contreras Ramos and N. Matsunaga
The Astrophysical Journal 871 (1) 114 (2019)
https://doi.org/10.3847/1538-4357/aaf730

Non-LTE analysis of K I in late-type stars

Henrique Reggiani, Anish M. Amarsi, Karin Lind, Paul S. Barklem, Oleg Zatsarinny, Klaus Bartschat, Dmitry V. Fursa, Igor Bray, Lorenzo Spina and Jorge Meléndez
Astronomy & Astrophysics 627 A177 (2019)
https://doi.org/10.1051/0004-6361/201935156

Tomography of cool giant and supergiant star atmospheres

K. Kravchenko, A. Chiavassa, S. Van Eck, A. Jorissen, T. Merle, B. Freytag and B. Plez
Astronomy & Astrophysics 632 A28 (2019)
https://doi.org/10.1051/0004-6361/201935809

The AMBRE Project: [Y/Mg] stellar dating calibration with Gaia

A. Titarenko, A. Recio-Blanco, P. de Laverny, M. Hayden and G. Guiglion
Astronomy & Astrophysics 622 A59 (2019)
https://doi.org/10.1051/0004-6361/201833721