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1. Full Text Non-LTE line formation of Fe in late-type stars - I. Standard stars with 1D and 〈3D〉 model atmospheres
by Bergemann, Maria and Lind, K and Collet, R and Magic, Z and Asplund, M
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 11/2012, Volume 427, Issue 1, pp. 27 - 49
Abstract We investigate departures from local thermodynamic equilibrium (LTE) in the line formation of Fe for a number of well-studied late-type stars in... 
line: formation | line: profiles – radiative transfer | atomic data | stars: abundances | Line: formation | Stars: abundances | Atomic data | Line: profiles - radiative transfer | COOL DWARF STARS | LAMBDA ITERATION METHOD | PRECISION-MEASUREMENT | radiative transfer | SURFACE CONVECTION | RELATIVE OSCILLATOR-STRENGTHS | METAL-POOR STARS | GALACTIC HALO STARS | MULTILEVEL RADIATIVE-TRANSFER | line: profiles | ASTRONOMY & ASTROPHYSICS | KINETIC EQUILIBRIUM | SOLAR-TYPE STARS | Models | Star & galaxy formation | Stars & galaxies | Atmosphere
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2. Full Text Surface differential rotation and photospheric magnetic field of the young solar-type star HD 171488 (V889 Her)
by Marsden, S. C and Donati, J-F and Semel, M and Petit, P and Carter, B. D
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 7/2006, Volume 370, Issue 1, pp. 468 - 476
We present spectropolarimetric observations of the young, single early G-dwarf HD 171488. These observations were obtained over a five-night period in 2004... 
stars: spots | stars: imaging | stars: activity | stars: magnetic fields | line: profiles | stars: individual: HD 171488 | Stars: imaging | Stars: spots | Stars: activity | Line: profiles | Stars: individual: HD 171488 stars: magnetic fields | LQ-HYDRAE | stars : activity | DOPPLER IMAGES | stars : spots | SENSITIVITY | line : profiles | CVN SYSTEM HR-1099 | stars : imaging | stars : magnetic fields | AB-DORADUS | BASIC PRINCIPLES | F-STARS | ASTRONOMY & ASTROPHYSICS | OPEN CLUSTER STARS | stars : individual : HD 171488 | COOL ACTIVE STARS | ENTROPY IMAGE-RECONSTRUCTION | Magnetic fields | Stars & galaxies | Astronomy | Cosmology and Extra-Galactic Astrophysics | Physics | Astrophysics
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3. Full Text First stars: XIII. Two extremely metal-poor RR Lyrae stars
by Hansen, C.J and Nordström, B and Bonifacio, P and Spite, M and Andersen, J and Beers, T.C and Cayrel, R and Spite, F and Molaro, P and Barbuy, B and Depagne, E and François, P and Hill, V and Plez, B and Sivarani, T
Astronomy and Astrophysics, ISSN 0004-6361, 03/2011, Volume 527, Issue 8, p. A65
Context. The chemical composition of extremely metal-poor stars (EMP stars; [Fe/H] < similar to -3) is a unique tracer of early nucleosynthesis in the Galaxy.... 
Galaxy: halo | stars: horizontal-branch | stars: population II | stars: abundances | supernovae: general | nuclear reactions nucleosynthesis abundances | HORIZONTAL-BRANCH STARS | ABUNDANCE PATTERNS | nuclear reactions, nucleosynthesis, abundances | SPECTROSCOPIC ANALYSIS | NON-LTE | STELLAR ATMOSPHERES | COOL STARS | POPULATION-III | EARLY GALAXY | ASTRONOMY & ASTROPHYSICS | CHEMICAL-COMPOSITION | HOMOGENEOUS SAMPLE | Physics - Solar and Stellar Astrophysics
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4. Full Text Toroidal versus poloidal magnetic fields in Sun-like stars: a rotation threshold
by Petit, P and Dintrans, B and Solanki, S. K and Donati, J.-F and Aurière, M and Lignières, F and Morin, J and Paletou, F and Ramirez, J and Catala, C and Fares, R
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 2008, Volume 388, Issue 1, pp. 80 - 88
From a set of stellar spectropolarimetric observations, we report the detection of surface magnetic fields in a sample of four solar-type stars, namely HD... 
stars: individual: HD 76151 | stars: individual: HD 190771 | stars: individual: HD 73350 | stars: individual: HD 146233 | stars: magnetic fields | stars: rotation | Stars: individual: HD 73350 | Stars: individual: HD 190771 | Stars: individual: HD 146233 | Stars: magnetic fields | Stars: individual: HD 76151 | Stars: rotation | stars : rotation | MAIN-SEQUENCE STARS | stars : individual : HD 146233 | stars : magnetic fields | COOL STARS | DYNAMO ACTION | DIFFERENTIAL ROTATION | stars : individual : HD 190771 | TACHOCLINE | EXTRACTION | stars : individual : HD 73350 | stars : individual : HD 76151 | TEMPERATURE | ASTRONOMY & ASTROPHYSICS | ACTIVE STARS | F-DWARF | SOLAR CONVECTION | Magnetic fields | Astronomy | Magnetic properties | Geometry | Astrophysics | Stars & galaxies | Physics - Cosmology and Nongalactic Astrophysics | Physics - Earth and Planetary Astrophysics | Physics - Instrumentation and Methods for Astrophysics | Physics - High Energy Astrophysical Phenomena | Physics - Solar and Stellar Astrophysics | Physics - Astrophysics of Galaxies | Sciences of the Universe | High Energy Astrophysical Phenomena
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5. Full Text Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. I. Classifying Low-mass Host Stars Observed during Campaigns 1-7
by Dressing, Courtney D and Newton, Elisabeth R and Schlieder, Joshua E and Charbonneau, David and Knutson, Heather A and Vanderburg, Andrew and Sinukoff, Evan
Astrophysical Journal, ISSN 0004-637X, 02/2017, Volume 836, Issue 2, p. 167
We present near-infrared spectra for 144 candidate planetary systems identified during Campaigns 1-7 of the NASA K2 Mission. The goal of the survey was to... 
stars: fundamental parameters | planetary systems | stars: low-mass | stars: late-type | techniques: spectroscopic | planets and satellites: fundamental parameters | LIGHT CURVES | COOL STARS | M DWARFS | INFRARED TELESCOPE FACILITY | TP-AGB MODELS | SOLAR NEIGHBORHOOD | ASTRONOMY & ASTROPHYSICS | BAND SPECTRA | MILKY-WAY | DATA RELEASE | GIANT BRANCH STARS
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6. Full Text Search for nearby stars among proper motion stars selected by optical-to-infrared photometry III. Spectroscopic distances of 322 NLTT stars
by Scholz, R.-D and Meusinger, H and Jahreiß, H
Astronomy and Astrophysics, ISSN 0004-6361, 10/2005, Volume 442, Issue 1, pp. 211 - 227
Distance estimates based on low-resolution spectroscopy and Two Micron All Sky Survey (2MASS) J magnitudes are presented for a large sample of 322 nearby... 
Surveys | Stars: late-type | Stars: distances | Techniques: spectroscopic | Galaxy: solar neighbourhood | Astrometry | stars : distances | COOL NEIGHBORS | WHITE-DWARFS | surveys | LUMINOSITY FUNCTION | Galaxy : solar neighbourhood | IMPROVED ASTROMETRY | COLOR CLASS-M | DIGITAL SKY SURVEY | SOLAR NEIGHBORHOOD | ASTRONOMY & ASTROPHYSICS | stars : late-type | SOUTHERN SKY | techniques : spectroscopic | LUYTEN CATALOG | ULTRACOOL DWARFS | astrometry | Physics - Cosmology and Nongalactic Astrophysics | Physics - Earth and Planetary Astrophysics | Physics - Instrumentation and Methods for Astrophysics | Physics - High Energy Astrophysical Phenomena | Physics - Solar and Stellar Astrophysics | Physics - Astrophysics of Galaxies
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7. Full Text Do Kepler Superflare Stars Really Include Slowly Rotating Sun-like Stars?-Results Using APO 3.5 m Telescope Spectroscopic Observations and Gaia-DR2 Data
by Notsu, Y and Maehara, H and Honda, S and Hawley, SL and Davenport, JRA and Namekata, K and Notsu, S and Ikuta, K and Nogami, D and Shibata, K
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 05/2019, Volume 876, Issue 1, p. 58
We report the latest view of Kepler solar-type (G-type main-sequence) superflare stars, including recent updates with Apache Point Observatory (APO) 3.5 m... 
SPACE WEATHER | FLARES | STELLAR MODEL CHROMOSPHERES | starspots | COOL STARS | stars: abundances | K-LINE | stars: flare | stars: solar-type | EVOLUTION | ASTRONOMY & ASTROPHYSICS | stars: activity | EMISSION | stars: rotation | ATMOSPHERIC PARAMETERS | MAGNETIC-STRUCTURE | CA-II H
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8. Full Text Atomic Diffusion and Mixing in Old Stars. I. Very Large Telescope FLAMES-UVES Observations of Stars in NGC 6397
by Korn, A. J and Grundahl, F and Richard, O and Mashonkina, L and Barklem, P. S and Collet, R and Gustafsson, B and Piskunov, N and Teknisk-naturvetenskapliga vetenskapsområdet and Institutionen för astronomi och rymdfysik and Observationell astrofysik and Uppsala universitet and Fysiska sektionen
The Astrophysical Journal, ISSN 0004-637X, 12/2007, Volume 671, Issue 1, pp. 402 - 419
We present a homogeneous photometric and spectroscopic analysis of 18 stars along the evolutionary sequence of the metal-poor globular cluster NGC 6397 ([Fe/H]... 
Stars: interiors | Globular clusters: individual (NGC 6397) | Stars: abundances | Stars: evolution | Stars: atmospheres | Stars: fundamental parameters | Stars: Population II | Diffusion | COOL DWARF STARS | stars : atmospheres | diffusion | RED GIANT BRANCH | OXYGEN ABUNDANCES | RADIATIVE ACCELERATION CALCULATIONS | METAL-POOR STARS | stars : interiors | stars : fundamental parameters | stars : Population II | globular clusters : individual (NGC 6397) | GLOBULAR-CLUSTER NGC-6397 | ASTRONOMY & ASTROPHYSICS | stars : evolution | SPITE LITHIUM PLATEAU | HALO STARS | HYDRODYNAMICAL MODEL ATMOSPHERES | EFFECTIVE TEMPERATURE SCALE | stars : abundances | Sciences of the Universe | Astrophysics | Fysik | Physical Sciences | Naturvetenskap | Natural Sciences | Physics
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9. Full Text A spectro-polarimetric study of the planet-hosting G dwarf, HD 147513
by Hussain, G.A.J and Alvarado-Gómez, J.D and Grunhut, J and Donati, J.-F and Alecian, E and Oksala, M and Morin, J and Fares, R and Jardine, M and Drake, J.J and Cohen, O and Matt, S and Petit, P and Redfield, S and Walter, F.M
Astronomy and Astrophysics, ISSN 0004-6361, 01/2016, Volume 585, p. A77
The results from a spectro-polarimetric study of the planet-hosting Sun-like star, HD 147513 (G5V), are presented here. Robust detections of Zeeman signatures... 
Stars: individual: HD 147513 | Techniques: radial velocities | Stars: magnetic field | Techniques: polarimetric | Stars: activity | Stars: solar-type | ROTATION | stars: individual: HD 147513 | ANGULAR-MOMENTUM EVOLUTION | techniques: radial velocities | MAIN-SEQUENCE STARS | COOL STARS | URSA-MAJOR GROUP | stars: magnetic field | stars: solar-type | ASTRONOMY & ASTROPHYSICS | MAGNETIC-FIELD | KINEMATIC GROUPS | stars: activity | techniques: polarimetric | SOLAR-TYPE STARS | EMISSION | ACTIVE STARS | Magnetic field measurement | Night | Stars | Time | Stellar evolution | Radial velocity | Magnetic fields | Signatures | Physics - Solar and Stellar Astrophysics | Solar and Stellar Astrophysics | Sciences of the Universe | Astrophysics
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10. Full Text Non-LTE line formation of Fe in late-type stars - III. 3D non-LTE analysis of metal-poor stars
by Amarsi, A.M and Lind, K and Asplund, M and Barklem, P.S and Collet, R and Institutionen för fysik och astronomi and Teknisk-naturvetenskapliga vetenskapsområdet and Observationell astrofysik and Teoretisk astrofysik and Uppsala universitet and Fysiska sektionen
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 12/2016, Volume 463, Issue 2, pp. 1518 - 1533
As one of the most important elements in astronomy, iron abundance determinations need to be as accurate as possible. We investigate the accuracy of... 
Line: formation | Stars: abundances | Radiative transfer | Stars: atmospheres | Methods: numerical | stars: atmospheres | COOL DWARF STARS | RADIATIVE-TRANSFER CODE | R-MATRIX METHOD | CROSS-SECTIONS | radiative transfer | RELATIVE OSCILLATOR-STRENGTHS | STELLAR ATMOSPHERES | ATOM-ATOM COLLISIONS | methods: numerical | stars: abundances | NEUTRAL HYDROGEN COLLISIONS | line: formation | ASTRONOMY & ASTROPHYSICS | MODEL ATMOSPHERES | GALACTIC CHEMICAL EVOLUTION | Physics - Solar and Stellar Astrophysics | Fysik | Physical Sciences | Astronomi, astrofysik och kosmologi | Naturvetenskap | Natural Sciences | Astronomy, Astrophysics and Cosmology
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11. Full Text The Hamburg/ESO R-process Enhanced Star survey (HERES) I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements
by Christlieb, N and Beers, T.C and Barklem, P.S and Bessell, M and Hill, V and Holmberg, J and Korn, A.J and Marsteller, B and Mashonkina, L and Qian, Y.-Z and Rossi, S and Wasserburg, G.J and Zickgraf, F.-J and Kratz, K.-L and Nordström, B and Pfeiffer, B and Rhee, J and Ryan, S.G and Lund Observatory and Astronomi and Lund University and Lunds universitet
Astronomy and Astrophysics, ISSN 0004-6361, 12/2004, Volume 428, Issue 3, pp. 1027 - 1037
We report on a dedicated effort to identify and study metal-poor stars strongly enhanced in r-process elements ([r/Fe] > 1 dex; hereafter r-II stars), the... 
Galaxy: halo | Surveys | Stars: abundances | Stars: population II | Galaxy: abundances | COOL DWARF STARS | surveys | METAL-POOR STARS | stars : population II | LOW-METALLICITY | BRANCH STARS | ABUNDANCE ANALYSIS | EARLY GALAXY | ASTRONOMY & ASTROPHYSICS | Galaxy : abundances | HIGH DISPERSION SPECTROGRAPH | RICH | Galaxy : halo | CS 31082-001 | stars : abundances | AGE | Physics - Cosmology and Nongalactic Astrophysics | Physics - Earth and Planetary Astrophysics | Physics - Instrumentation and Methods for Astrophysics | Physics - High Energy Astrophysical Phenomena | Physics - Solar and Stellar Astrophysics | Physics - Astrophysics of Galaxies | Fysik | Astronomi, astrofysik och kosmologi | Physical Sciences | Naturvetenskap | Natural Sciences | stars: population II | stars: abundances | Astronomy, Astrophysics and Cosmology
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12. FGK stars and T Tauri stars
by Cram, Lawrence E and Kuhi, Leonard V and United States. National Aeronautics and Space Administration
1989, Monograph series on nonthermal phenomena in stellar atmospheres, 297
Cool stars | T Tauri stars
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13. Full Text Large-scale magnetic topologies of mid M dwarfs
by Morin, J and Donati, J.-F and Petit, P and Delfosse, X and Forveille, T and Albert, L and Aurière, M and Cabanac, R and Dintrans, B and Fares, R and Gastine, T and Jardine, M. M and Lignières, F and Paletou, F and Ramirez Velez, J. C and Théado, S
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 10/2008, Volume 390, Issue 2, pp. 567 - 581
We present in this paper, the first results of a spectropolarimetric analysis of a small sample (∼20) of active stars ranging from spectral type M0 to M8,... 
techniques: polarimetric | stars: activity | stars: magnetic fields | stars: rotation | stars: low‐mass, brown dwarfs | Stars: low-mass, brown dwarfs | Techniques: polarimetric | Stars: activity | Stars: magnetic fields | Stars: rotation | stars : rotation | stars : activity | techniques : polarimetric | LOW-MASS STARS | FIELD | LOWER MAIN-SEQUENCE | stars : magnetic fields | SOLAR-TYPE | DIFFERENTIAL ROTATION | stars : low-mass, brown dwarfs | BROWN DWARFS | ASTRONOMY & ASTROPHYSICS | X-RAY-EMISSION | SPECTROPOLARIMETRIC OBSERVATIONS | FULLY CONVECTIVE STAR | COOL ACTIVE STARS | Astrophysics | Magnetic fields | Spectrum analysis | Astronomy | Time series | Physics - Cosmology and Nongalactic Astrophysics | Physics - Earth and Planetary Astrophysics | Physics - Instrumentation and Methods for Astrophysics | Physics - High Energy Astrophysical Phenomena | Physics - Solar and Stellar Astrophysics | Physics - Astrophysics of Galaxies | Cosmology and Extra-Galactic Astrophysics | Sciences of the Universe
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