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Symmetry, ISSN 2073-8994, 03/2020, Volume 12, Issue 3, p. 404
Variations of fundamental physical constants have been sought for many years using various astronomical objects because their discovery can be key to... 
triple-α reaction | supernova | nucleosynthesis | metal-poor star | population iii star
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 03/2020, Volume 891, Issue 1, p. 39
Journal Article
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 03/2020, Volume 492, Issue 3, pp. 3708 - 3727
Barium stars are one of the important probes to understand the origin and evolution of slow neutron-capture process elements in the Galaxy. These are extrinsic... 
OSCILLATOR-STRENGTHS | CH STARS | RED GIANTS | S-PROCESS | METAL-POOR STARS | ASYMPTOTIC GIANT BRANCH | stars: abundances | DREDGE-UP | HEAVY-ELEMENT ABUNDANCES | BINARY NATURE | NEUTRON-CAPTURE | ASTRONOMY & ASTROPHYSICS | stars: chemically peculiar | stars: individual
Journal Article
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 02/2020, Volume 492, Issue 2, pp. 2161 - 2176
Measurements of [Fe/H] and radial velocity are presented for 89 RR Lyrae (RRL) candidates within 6 kpc of the Sun. After the removal of two suspected non-RRLs,... 
MAGELLANIC-CLOUD | Galaxy: kinematics and dynamics | GALACTIC STRUCTURE | STELLAR HALO | VARIABLE-STARS | METAL-POOR STARS | GRAVITATIONAL LENSING EXPERIMENT | Galaxy: formation | SOLAR NEIGHBORHOOD | ASTRONOMY & ASTROPHYSICS | stars: variables: RR Lyrae | OGLE-III CATALOG | MILKY-WAY | GLOBULAR-CLUSTERS
Journal Article
ASTRONOMY & ASTROPHYSICS, ISSN 0004-6361, 02/2020, Volume 634, p. A72
Context. Deriving the metallicity, [Fe/H], in low-resolution spectra of carbon-enhanced metal-poor (CEMP) stars is a tedious task that, owing to the large... 
stars: Population II | SURVEY HERES | techniques: spectroscopic | ASTRONOMY & ASTROPHYSICS | stars: carbon | S-PROCESS | METAL-POOR STARS | 1ST STARS | stars: abundances
Journal Article
ASTRONOMY & ASTROPHYSICS, ISSN 0004-6361, 02/2020, Volume 634, p. A84
The slow (s) and intermediate (i) neutron (n) capture processes occur both in asymptotic giant branch (AGB) stars, and in massive stars. To study the build-up... 
ROTATING MASSIVE STARS | PROCESS NUCLEOSYNTHESIS | Galaxy: evolution | 1ST STARS | Local Group | CHEMICAL-COMPOSITIONS | GALACTIC EVOLUTION | stars: abundances | DISPERSION SPECTROGRAPH | galaxies: dwarf | EXTREMELY METAL-POOR | ASTRONOMY & ASTROPHYSICS | R-PROCESS ELEMENTS | stars: chemically peculiar | galaxies: abundances | HOMOGENEOUS SAMPLE | GIANT BRANCH STARS
Journal Article
ASTRONOMY & ASTROPHYSICS, ISSN 0004-6361, 01/2020, Volume 634
The nucleosynthetic site of the rapid (r) neutron-capture process is currently being debated. The direct detection of the neutron star merger GW170817, through... 
DWARF | Galaxy: evolution | METAL-POOR STARS | CHEMICAL EVOLUTION | Local Group | FORMATION HISTORY | ABUNDANCES | IDENTIFICATION | stars: abundances | galaxies: dwarf | Galaxy: abundances | ASTRONOMY & ASTROPHYSICS | ENRICHMENT | NUCLEOSYNTHESIS | GALAXIES | galaxies: abundances | URSA-MINOR
Journal Article
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 01/2020, Volume 491, Issue 2, pp. 2280 - 2300
Due to the ever-expanding volume of observed spectroscopic data from surveys such as SDSS and LAMOST, it has become important to apply artificial intelligence... 
methods: data analysis | stars: general | 2-DIMENSIONAL CLASSIFICATION | LIBRARY | METAL-POOR STARS | POPULATIONS | GALAXY | AUTOMATED CLASSIFICATION | PROPER MOTIONS | CATALOG | RR LYRAE STARS | NEUTRON-CAPTURE ELEMENTS | techniques: spectroscopic | ASTRONOMY & ASTROPHYSICS | catalogues
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 12/2019, Volume 887, Issue 2, p. 196
The discovery of quasars a few hundred megayears after the Big Bang represents a major challenge to our understanding of black holes as well as galaxy... 
METAL-POOR GAS | Z-SIMILAR-TO-6 QUASARS | INTERMEDIATE-REDSHIFT QUASARS | OPTICALLY THICK ABSORBERS | STAR-FORMING GALAXIES | DIGITAL SKY SURVEY | ASTRONOMY & ASTROPHYSICS | DARK-MATTER HALOES | COOL GAS | MILKY-WAY | SUPERMASSIVE BLACK-HOLES | Surveys | Quasars | Accretion | Star & galaxy formation | Emissions
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 12/2019, Volume 887, Issue 1, p. 91
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 12/2019, Volume 887, Issue 1, p. 11
Lead (Pb) is predominantly produced by the slow neutron-capture process (s process) in asymptotic giant branch (AGB) stars. In contrast to significantly... 
S-PROCESS NUCLEOSYNTHESIS | LOW-MASS | STELLAR MODELS | SPECTROSCOPIC ANALYSIS | ASTRONOMY & ASTROPHYSICS | WHITE-DWARFS | METAL-POOR STARS | POST-AGB STARS | CARBON-RICH | R-PROCESS | GIANT BRANCH STARS | Heavy elements | Thermal neutrons | Nuclear fusion | Model matching | Metallicity | Lead | Abundance | Iron | Exposure | Asymptotic giant branch stars | Nuclear capture
Journal Article
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 12/2019, Volume 490, Issue 3, pp. 4307 - 4316
Fluorine is massive enough that it is not considered to be a light (Z <= 5) element, yet compared to its near neighbours, C, N, O, and Ne, it is far... 
BORON | ISM: abundances | METAL-POOR STARS | CHEMICAL EVOLUTION | GALACTIC EVOLUTION | OXYGEN | ORIGIN | nucleosynthesis | galaxies: ISM | abundances | ASTRONOMY & ASTROPHYSICS | BERYLLIUM ABUNDANCES | HALO STARS | LIGHT-ELEMENTS
Journal Article
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 12/2019, Volume 490, Issue 2, pp. 2838 - 2854
Journal Article