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Lista de obras de Sean G. Ryan

A Subaru/High dispersion spectrograph study of lead (Pb) abundances in eight s-process element-rich, metal-poor stars

artículo científico publicado en 2002

A search for stars of very low metal abundance. III. UBV photometry of metal-weak candidates

artículo científico publicado en 1999

A three-dimensional hydrodynamical line profile analysis of iron lines and barium isotopes in HD 140283

artículo científico publicado en 2015

Abundances and evolution of lithium in the galactic halo and disk

artículo científico publicado en 2001

Beryllium abundances in halo stars from Keck/HIRES observations

artículo científico publicado en 1999

Big Bang nucleosynthesis, population III, and stellar genetics in the galactic halo

artículo científico publicado en 2002

Carbon-enhanced metal-poor stars. I. Chemical compositions of 26 stars

artículo científico publicado en 2007

Carbon-enhanced metal-poor stars. III. Main-sequence turnoff stars from the SDSS SEGUE sample

artículo científico publicado en 2008

Carbon-enhanced metal-poor stars: osmium and iridium abundances in the neutron-capture-enhanced subgiants CS 31062-050 and LP 625-44

artículo científico publicado en 2006

Chemical composition of the carbon-rich, extremely metal poor star CS 29498-043: a new class of extremely metal poor stars with excesses of magnesium and silicon

artículo científico publicado en 2002

Detection of diffuse interstellar bands in the z=0.5 damped Ly{alpha} system toward AO 0235+164

artículo científico publicado en 2006

Elemental abundances and classification of carbon-enhanced metal-poor stars

artículo científico publicado en 2012

Estimation of stellar metal abundance. II. A recalibration of the Ca II K technique, and the autocorrelation function method

Europium isotope ratios in s-process element-enhanced metal-poor stars: a new probe of the ^151^Sm branching

scholarly article by Aoki W. et al published 2003 in Letters of the Astrophysical Journal

Evolution of the light elements and the cosmic-ray flux in the Galaxy

artículo científico publicado en 1997

Experimental Mg I oscillator strengths and radiative lifetimes for astrophysical applications on metal-poor stars. New data for the Mg I b triplet

artículo científico publicado en 2007

Extremely metal poor stars. VI. The heterogeneous class of lithium-depleted main-sequence turnoff dwarfs

artículo científico publicado en 1998

Extremely metal-poor stars. II. Elemental abundances and the early chemical enrichment of the galaxy

article by Ryan S. G. et al published 1996 in Letters of the Astrophysical Journal

Extremely metal-poor stars. III. The Li-depleted main-sequence turnoff dwarfs

artículo científico publicado en 1997

Extremely metal-poor stars. IV. The carbon-rich objects

artículo científico publicado en 1997

Extremely metal-poor stars. IX. CS 22949-037 and the role of hypernovae

artículo científico publicado en 2002

Extremely metal-poor stars. VIII. High-resolution, high signal-to-noise ratio analysis of five stars with [Fe/H]{<~}-3.5

artículo científico publicado en 2001

HARMONI: a single-field wide-band integral-field spectrograph for the European ELT

HE 1327-2326, an unevolved star with [Fe/H]<-5.0. I. A comprehensive abundance analysis

artículo científico publicado en 2006

Imaging of X-Ray-Excited Emissions from Quantum Dots and Biological Tissue in Whole Mouse

artículo científico publicado en 2019

Limits on reddening and Gas-to-Dust ratios for seven intermediate redshift damped Ly{alpha} absorbers from diffuse interstellar bands

artículo científico publicado en 2008

Lithium 6104 {AA} in Population II stars

artículo científico publicado en 2002

Lithium abundances of halo dwarfs based on excitation temperature. I. Local thermodynamic equilibrium

artículo científico publicado en 2008

Lithium abundances of halo dwarfs based on excitation temperatures

artículo científico publicado en 2010

Mg abundances in metal-poor halo stars as a tracer of early Galactic mixing

artículo científico publicado en 2005

Neutron capture elements in s-process-rich, very metal-poor stars

Neutron-capture elements in the very metal poor star HD 122563

artículo científico publicado en 2006

Nucleosynthetic signatures of the first stars.

artículo científico publicado en 2005

Oxygen overabundance in the extremely iron-poor star CS 29498-043

artículo científico publicado en 2004

Performance of the Southern African Large Telescope (SALT) High Resolution Spectrograph (HRS)

Processing of lithium in halo stars cooler then the spite plateau. III. Observations and abundance analysis

scholarly article by Ryan S. G. & Deliyannis C. P. published 1998 in Letters of the Astrophysical Journal

Rapid rotation of ultra-Li-depleted halo stars and their association with blue stragglers

artículo científico publicado en 2002

Spectral classification of photometrically selected AGB candidates in NGC 6822

artículo científico publicado en 2015

Spectroscopic studies of extremely metal-poor stars with the SUBARU high dispersion spectrograph. I. Observational data

artículo científico publicado en 2004

Spectroscopic studies of extremely metal-poor stars with the Subaru high-dispersion spectrograph. IV. The {alpha}-element-enhanced metal-poor star BS 16934-002

artículo científico publicado en 2007

Spectroscopic studies of very metal-poor stars with the Subaru high dispersion spectrograph. III. Light neutron-capture elements

artículo científico publicado en 2005

The AGB population in IC 1613 using JHK photometry

artículo científico publicado en 2015

The AGB population of NGC 6822: distribution and the C/M ratio from JHK photometry

scholarly article

The Hamburg/ESO R-process Enhanced Star survey (HERES). I. Project description, and discovery of two stars with strong enhancements of neutron-capture elements

artículo científico publicado en 2004

The SALT HRS spectrograph: final design, instrument capabilities, and operational modes

The SALT HRS spectrograph: instrument integration and laboratory test results

The barium isotopic fractions in five metal-poor stars

artículo científico publicado en 2012

The barium isotopic mixture for the metal-poor subgiant star HD 140283

scientific article published in Astronomy and Astrophysics

The chemical composition of carbon-rich, very metal poor stars: a new class of mildly carbon rich objects without excess of neutron-capture elements

artículo científico publicado en 2002

The evolution of galactic boron and the production site of the light elements

artículo científico publicado en 1997

The most metal-poor stars. I. Discovery, data, and atmospheric parameters

artículo científico publicado en 2013

The most metal-poor stars. II. Chemical abundances of 190 metal-poor stars including 10 new stars with [Fe/H] <= -3.5

artículo científico publicado en 2013

The most metal-poor stars. III. The metallicity distribution function and carbon-enhanced metal-poor fraction

artículo científico publicado en 2013

The most metal-poor stars. IV. The two populations with [Fe/H] <~ -3.0

artículo científico publicado en 2013

The origins of two classes of carbon-enhanced, metal-poor stars

artículo científico publicado en 2005

Ultra-lithium-deficient halo stars and blue stragglers: a common origin?

scholarly article

^6^Li/^7^Li estimates for metal-poor stars

scholarly article