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1. Full Text The Na-O anticorrelation in horizontal branch stars: III. 47 Tucanae and M 5
by Gratton, R.G and Lucatello, S and Sollima, A and Carretta, E and Bragaglia, A and Momany, Y and D'Orazi, V and Cassisi, S and Pietrinferni, A and Salaris, M
Astronomy and Astrophysics, ISSN 0004-6361, 2012, Volume 549, pp. A41 - 15
To check the impact of the multiple population scenario for globular clusters on their horizontal branch (HB), we present an analysis of the composition of 110... 
Globular clusters: individual: M5 | Stars: abundances | Stars: evolution | Stars: Population II | Globular clusters: individual: 47 Tucanae | RED GIANT BRANCH | globular clusters: individual: 47 Tucanae | stars: evolution | METAL-POOR STARS | stars: abundances | globular clusters: individual: M5 | UBIQUITOUS NATURE | HEAVY-ELEMENT ABUNDANCES | 2ND-PARAMETER PHENOMENON | HELIUM ENHANCEMENT | stars: Population II | 2ND-GENERATION STARS | ASTRONOMY & ASTROPHYSICS | MULTIPLE POPULATIONS | GALACTIC GLOBULAR-CLUSTERS | MILKY-WAY | Metallicity | Binary stars | Stars | Age determination | Color | Horizontal branch stars | Astronomy | Colour
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2. Full Text The Na-O anticorrelation in horizontal branch stars: V. NGC 6723
by Gratton, R.G and Lucatello, S and Sollima, A and Carretta, E and Bragaglia, A and Momany, Y and D'Orazi, V and Salaris, M and Cassisi, S and Stetson, P.B
Astronomy and Astrophysics, ISSN 0004-6361, 01/2015, Volume 573, p. A92
We used FLAMES+GIRAFFE (Medusa mode) at the VLT to obtain moderately high resolution spectra for 30 red horizontal branch (RHB) stars, 4 RR Lyrae variables,... 
Stars: abundances | Stars: evolution | Stars: Population II | Globular clusters: general | Globular clusters: individual: NGC 6723 | DOUBLE SUBGIANT BRANCH | stars: evolution | COLOR-MAGNITUDE DIAGRAM | ACS SURVEY | MULTIPLE STELLAR POPULATIONS | METAL-POOR STARS | globular clusters: individual: NGC 6723 | stars: abundances | stars: Population II | OMEGA-CENTAURI | globular clusters: general | NEUTRON-CAPTURE ELEMENTS | DOUBLE MAIN-SEQUENCE | ASTRONOMY & ASTROPHYSICS | ROTATION VELOCITIES | GALACTIC GLOBULAR-CLUSTERS | Horizontal | Stars | Abundance | Spectra | Iron | Globular clusters | Horizontal branch stars | Astronomy | Physics - Solar and Stellar Astrophysics
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3. Full Text The Milky Way's Circular Velocity Curve to 60 kpc and an Estimate of the Dark Matter Halo Mass from the Kinematics of ~2400 SDSS Blue Horizontal-Branch Stars
by Xue, X. X and Rix, H. W and Zhao, G and Re Fiorentin, P and Naab, T and Steinmetz, M and van den Bosch, F. C and Beers, T. C and Lee, Y. S and Bell, E. F and Rockosi, C and Yanny, B and Newberg, H and Wilhelm, R and Kang, X and Smith, M. C and Schneider, D. P
The Astrophysical Journal, ISSN 0004-637X, 09/2008, Volume 684, Issue 2, pp. 1143 - 1158
We derive new constraints on the mass of the Milky Way's dark matter halo, based on 2401 rigorously selected blue horizontal-branch halo stars from SDSS DR6.... 
Galaxy: halo | Stars: horizontal-branch | Stars: kinematics | Dark matter | Galaxies: individual (Milky Way) | 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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4. Full Text Search for stellar spots in field blue horizontal-branch stars
by Paunzen, E and Bernhard, K and Hümmerich, S and Janík, J and Semenko, E.A and Yakunin, I.A
Astronomy and Astrophysics, ISSN 0004-6361, 02/2019, Volume 622, p. A77
Context. Blue horizontal-branch stars are Population II objects which are burning helium in their core and possess a hydrogen-burning shell and radiative... 
Stars: horizontal-branch | diffusion | starspots | techniques: photometric | stars: horizontal-branch | CATALOG | CHEMICALLY PECULIAR | ANOMALIES | ASTRONOMY & ASTROPHYSICS | BLANKETED MODEL ATMOSPHERES | MERIDIONAL CIRCULATION | Amplitudes | Supernovae | Hydrogen | Variability | Stellar spots | Stellar atmospheres | Stellar populations | Synthesis | Planet detection | Solar neighborhood | Surface properties | Light curve | Diffusion | Surface spots | Horizontal branch stars | Photometry | Stellar magnetic fields | Automation | Time series analysis | Time series | Sky surveys (astronomy) | Abundance | Helium | Surveys | Organic chemistry | Peculiar stars | Planets | Incineration | Magnetic fields | Stellar surfaces
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5. Full Text SHOTGLAS: I. The ultimate spectroscopic census of extreme horizontal branch stars in ω Centauri
by Latour, Marilyn and Randall, Suzanna K and Calamida, Annalisa and Geier, Stephan and Moehler, Sabine
Astronomy and Astrophysics, ISSN 0004-6361, 10/2018, Volume 618, p. A15
Stars: horizontal-branch | Subdwarfs | Globular clusters: individual: NGC 5139 | Stars: fundamental parameters | Stars: Atmospheres | Binaries: close
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6. Full Text A Spectroscopic Survey of Field Red Horizontal-branch Stars
by Afşar, Melike and Bozkurt, Zeynep and Topcu, Gamze Böcek and Casetti-Dinescu, Dana I and Sneden, Christopher and Şehitoglu, Gizem
Astronomical Journal, ISSN 0004-6256, 06/2018, Volume 155, Issue 6, p. 240
A metallicity, chemical composition, and kinematic survey has been conducted for a sample of 340 candidate field red horizontal-branch (RHB) stars. Spectra... 
stars: atmospheres | stars: horizontal-branch | stars: evolution | stars: abundances | COLOR-MAGNITUDE | LARGE HOMOGENEOUS V | LATE-G GIANTS | STELLAR PARAMETERS | LINE-DEPTH RATIOS | NEARBY GLOBULAR-CLUSTERS | G-DWARF STARS | GALACTIC THICK DISK | MAGNITUDE DIAGRAM DATABASE | ASTRONOMY & ASTROPHYSICS | LARGE-MAGELLANIC-CLOUD
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7. Full Text The Abundances of Neutron-capture Species in the Very Metal-poor Globular Cluster M15: A Uniform Analysis of Red Giant Branch and Red Horizontal Branch Stars
by Sobeck, Jennifer S and Kraft, Robert P and Sneden, Christopher and Preston, George W and Cowan, John J and Smith, Graeme H and Thompson, Ian B and Shectman, Stephen A and Burley, Gregory S
The Astronomical Journal, ISSN 1538-3881, 06/2011, Volume 141, Issue 6, p. 175
The globular cluster M15 is unique in its display of star-to-star variations in the neutron-capture elements. Comprehensive abundance surveys have been... 
stars: horizontal-branch | stars: late-type | stars: abundances | radiative transfer | globular clusters: individual (M15) | SOLAR ABUNDANCE | HUBBLE-SPACE-TELESCOPE | LASER-INDUCED-FLUORESCENCE | RELATIVE OSCILLATOR-STRENGTHS | SINGLY IONIZED VANADIUM | A1D2 0.90 EV | R-PROCESS-RICH | ASTRONOMY & ASTROPHYSICS | CHEMICAL-COMPOSITION | 2-DIMENSIONAL RADIATIVE-TRANSFER | LABORATORY TRANSITION-PROBABILITIES | NUCLEON REACTIONS | HADRON REACTIONS | NEUTRON REACTIONS | TRANSITION ELEMENTS | R PROCESS | NUCLEAR REACTIONS | IRON | S PROCESS | ABUNDANCE | BARYON REACTIONS | ELEMENTS | EVOLUTION | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | METALS | STAR EVOLUTION | STARS | CAPTURE | SOLAR SYSTEM
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8. Full Text The Na-O anticorrelation in horizontal branch stars: IV. M 22
by Gratton, R.G and Lucatello, S and Sollima, A and Carretta, E and Bragaglia, A and Momany, Y and D'Orazi, V and Cassisi, S and Salaris, M
Astronomy and Astrophysics, ISSN 0004-6361, 03/2014, Volume 563, pp. A13 - np
We obtained high-resolution spectra for 94 candidate stars belonging to the HB of M 22 with FLAMES. Previous works have indicated that this cluster has split... 
Stars: abundances | Stars: evolution | Stars: Population II | Globular clusters: general | Globular clusters: individual: M 22 | GLOBULAR-CLUSTER M22 | RED GIANT BRANCH | stars: evolution | COLOR-MAGNITUDE DIAGRAM | MULTIPLE STELLAR POPULATIONS | METAL-POOR STARS | stars: abundances | stars: Population II | OMEGA-CENTAURI | globular clusters: general | ASTRONOMY & ASTROPHYSICS | globular clusters: individual: M22 | INITIAL HELIUM ABUNDANCE | NGC 1851 | LIGHT-ELEMENT | LINE FORMATION | Red giant stars | Concentration (composition) | Stars | Clusters | Spectra | Rotating | Horizontal branch stars | Astronomy
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9. Full Text Kinematics of the stellar halo and the mass distribution of the Milky Way using blue horizontal branch stars
by Kafle, Prajwal R and Sharma, Sanjib and Lewis, Geraint F and Bland-Hawthorn, Joss
Astrophysical Journal, ISSN 0004-637X, 12/2012, Volume 761, Issue 2, pp. 98 - 17
Here, we present a kinematic study of the Galactic halo out to a radius of similar to 60 kpc, using 4664 blue horizontal branch stars selected from the... 
Galaxy: halo | stars: kinematics and dynamics | stars: horizontal-branch | galaxies: individual (Milky Way) | TRACING GALAXY FORMATION | LOCAL GROUP | ROTATION CURVE | SPHERICAL GALAXIES | GALACTIC HALO | VELOCITY DISPERSION PROFILE | SUPERMASSIVE BLACK-HOLE | DIGITAL SKY SURVEY | ASTRONOMY & ASTROPHYSICS | TRIANGULUM-ANDROMEDA REGION | CIRCULAR VELOCITY | Halos | Computer simulation | Anisotropy | Mathematical analysis | Kinematics | Constants | Dispersions | Horizontal branch stars | BINARY STARS | MASS DISTRIBUTION | RADIAL VELOCITY | ANISOTROPY | COMPUTERIZED SIMULATION | SPHERICAL CONFIGURATION | NONLUMINOUS MATTER | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY | ASTRONOMY | ASTROPHYSICS | MASS | PROPER MOTION | MILKY WAY | MAXIMUM-LIKELIHOOD FIT
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10. Full Text Pulsational instabilities driven by the mechanism in hot pre-horizontal branch stars: I. the hot-flasher scenario
by Battich, Tiara and Bertolami, Marcelo M. Miller and Córsico, Alejandro H and Althaus, Leandro G
Astronomy and Astrophysics, ISSN 0004-6361, 06/2018, Volume 614, p. A136
Stars: horizontal-branch | Stars: interiors | asteroseismology | Stars: low-mass | Stars: oscillations
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11. Full Text Pulsational instabilities driven by the is an element of mechanism in hot pre-horizontal branch stars
by Battich, T and Bertolami, MMM and Corsico, AH and Althaus, LG
ASTRONOMY & ASTROPHYSICS, ISSN 1432-0746, 07/2018, Volume 614
Context. The is an element of mechanism is a self-excitation mechanism of stellar pulsations that acts in regions inside the star where nuclear burning takes... 
G-MODE INSTABILITIES | DRIVING MECHANISM | stars: horizontal-branch | stars: interiors | WHITE-DWARFS | SUBDWARF-B STARS | DISCOVERY | VARIABILITY | stars: oscillations | asteroseismology | ASTRONOMY & ASTROPHYSICS | DWARF COOLING CURVE | EVOLUTIONARY MODELS | ZZ-CETI STARS | stars: low-mass
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12. Full Text Hot horizontal branch stars in NGC288-effects of diffusion and stratification on their atmospheric parameters (Corrigendum)
by Moehler, S and Dreizler, S and LeBlanc, F and Khalack, V and Michaud, G and Richer, J and Sweigart, AV and Grundahl, F
ASTRONOMY & ASTROPHYSICS, ISSN 1432-0746, 09/2017, Volume 605
We found that the script to determine the masses of the stars contains two errors. This script and a related one have been used to determine masses of globular... 
stars: atmospheres | stars: horizontal-branch | PHYSICAL PARAMETERS | errata, addenda | stars: AGB and post-AGB | SUBLUMINOUS STARS | SUBDWARF-B STARS | globular clusters: general | EARLY-TYPE DISC | HIGH GALACTIC LATITUDES | ASTRONOMY & ASTROPHYSICS | GLOBULAR-CLUSTER NGC-6752 | HB STARS | HALO STARS | SDB STARS | HIGH-VELOCITY CLOUDS
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13. Full Text The Milky Way's circular velocity curve to 60 kpc and an estimate of the dark matter halo mass from the kinematics of similar to 2400 SDSS blue horizontal-branch stars
by Xue, XX and Rix, HW and Zhao, G and Fiorentin, PR and Naab, T and Steinmetz, M and van den Bosch, FC and Beers, TC and Lee, YS and Bell, EF and Rockosi, C and Yanny, B and Newberg, H and Wilhelm, R and Kang, X and Smith, MC and Schneider, DP
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 09/2008, Volume 684, Issue 2, pp. 1143 - 1158
We derive new constraints on the mass of the Milky Way's dark matter halo, based on 2401 rigorously selected blue horizontal-branch halo stars from SDSS DR6.... 
stars : kinematics | GALACTIC HALO | stars : horizontal-branch | DISK GALAXIES | galaxies : individual (MilkyWay) | SPECTROSCOPY | HOT STARS | DIGITAL SKY SURVEY | A-TYPE STARS | ASTRONOMY & ASTROPHYSICS | RADIAL-VELOCITIES | MILKY-WAY | DATA RELEASE | dark matter | Galaxy : halo | PARTICLE HYDRODYNAMICS SIMULATIONS
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14. Full Text The hot horizontal-branch stars in omega Centauri
by Moehler, S and Dreizler, S and Lanz, T and Bono, G and Sweigart, AV and Calamida, A and Nonino, M
ASTRONOMY & ASTROPHYSICS, ISSN 0004-6361, 02/2011, Volume 526
Context. UV observations of some massive globular clusters have revealed a significant population of stars hotter and fainter than the hot end of the... 
SPECTROSCOPIC ANALYSES | stars: horizontal-branch | RED GIANT BRANCH | stars: evolution | BLUE HOOK STARS | globular clusters: individual: NGC 5139 | MAIN-SEQUENCE | 2ND-GENERATION STARS | SPACE-TELESCOPE OBSERVATIONS | techniques: spectroscopic | ASTRONOMY & ASTROPHYSICS | BLANKETED MODEL ATMOSPHERES | DWARF COOLING CURVE | FLASHER SCENARIO | GLOBULAR-CLUSTERS | Physics - Solar and Stellar Astrophysics
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15. Full Text Spectroscopy of horizontal branch stars in omega Centauri
by Bidin, CM and Villanova, S and Piotto, G and Moehler, S and Cassisi, S and Momany, Y
ASTRONOMY & ASTROPHYSICS, ISSN 0004-6361, 11/2012, Volume 547
Aims. We analyze the reddening, surface helium abundance and spectroscopic mass of 115 blue horizontal branch (HB) and blue hook (BH) stars in omega Centauri,... 
stars: atmospheres | stars: horizontal-branch | GLOBULAR-CLUSTER NGC-2808 | BLUE HOOK STARS | COLOR-MAGNITUDE DIAGRAM | SUBDWARF B STARS | ABUNDANCE ANOMALIES | stars: abundances | globular clusters: individual: omega Centauri | SPACE-TELESCOPE OBSERVATIONS | ASTRONOMY & ASTROPHYSICS | BLANKETED MODEL ATMOSPHERES | DWARF COOLING CURVE | stars: fundamental parameters | HOT HB STARS | PHOTOMETRIC STANDARD STARS | Physics - Solar and Stellar Astrophysics
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16. Full Text Detailed abundance analysis of five field blue horizontal-branch stars
by Kafando, I and LeBlanc, F and Robert, C
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 06/2016, Volume 459, Issue 1, pp. 871 - 879
Previous studies have shown that hot blue horizontal-branch (BHB) stars in globular clusters present abundance anomalies of certain chemical elements in their... 
Stars: abundances | Stars: atmospheres | Stars: horizontal branch | Diffusion | stars: atmospheres | diffusion | stars: horizontal branch | A-STARS | ANOMALIES | PECULIAR | MAIN-SEQUENCE | stars: abundances | ASTRONOMY & ASTROPHYSICS | VERTICAL STRATIFICATION | ROTATION VELOCITIES | MODEL ATMOSPHERES | MAGNETIC-FIELD | GLOBULAR-CLUSTERS
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17. Full Text The ultimate spectroscopic census of extreme horizontal branch stars in omega Centauri
by Latour, M and Randall, SK and Calamida, A and Geier, S and Moehler, S
ASTRONOMY & ASTROPHYSICS, ISSN 1432-0746, 10/2018, Volume 618
The presence of extreme horizontal branch (EHB) and blue hook stars in some Galactic globular clusters (GGCs) constitutes one of the remaining mysteries of... 
stars: atmospheres | stars: horizontal-branch | POSSIBLE FORMATION CHANNEL | BLUE HOOK STARS | HELIUM WHITE-DWARF | binaries: close | MULTIPLE STELLAR POPULATIONS | globular clusters: individual: NGC5139 | SUBDWARF-B-STARS | IA PROGENITOR SURVEY | HOT-FLASHER SCENARIO | GLOBULAR-CLUSTER | ASTRONOMY & ASTROPHYSICS | subdwarfs | CORONAE-BOREALIS STARS | DWARF COOLING CURVE | stars: fundamental parameters
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