Results 21 to 30 of about 699,213 (384)
Comprehensive analytic formulae for stellar evolution as a function of mass and metallicity [PDF]
, 2000 We present analytic formulae that approximate the evolution of stars for a wide range of mass M and metallicity Z. Stellar luminosity, radius and core mass are given as a function of age, M and Z, for all phases from the zero-age main sequence up to, and
J. Hurley, O. Pols, C. Tout
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Resolving the Metallicity Distribution of the Stellar Halo with the H3 Survey [PDF]
Astrophysical Journal, 2019 The Galactic stellar halo is predicted to have formed at least partially from the tidal disruption of accreted dwarf galaxies. This assembly history should be detectable in the orbital and chemical properties of stars.
C. Conroy +6 more
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The Close Binary Fraction of Solar-type Stars Is Strongly Anticorrelated with Metallicity [PDF]
Astrophysical Journal, 2018 There is now strong evidence that the close binary fraction (P < 104 days; a < 10 au) of solar-type stars (M1 ≈ 0.6–1.5 ) decreases significantly with metallicity. Although early surveys showed that the observed spectroscopic binary (SB) fractions in the
M. Moe, K. Kratter, C. Badenes
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The Astrophysical Journal, 2023 The number of long-duration gamma-ray burst (LGRB) host galaxies with measured metallicities and host masses has expanded sufficiently to investigate how the distributions of these properties change with redshift.
J. F. Graham, P. Schady, A. S. Fruchter
doaj +1 more source
Metallicity Calibrations and the Mass-Metallicity Relation for Star-forming Galaxies [PDF]
, 2008 We investigate the effect of metallicity calibrations, AGN classification, and aperture covering fraction on the local mass-metallicity (M-Z) relation using 27,730 star-forming galaxies from the SDSS Data Release 4.
L. Kewley, S. Ellison
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Odessa Astronomical Publications, 2014 A thorough study of the correlation between P1=P0 ratio, fundamental period, and chemical composition (abundances of metals that compose Z) was conducted to investigate the significance of the iron-peak elements on the ratio. The results suggested a more
F. A. Chekhonadskikh +2 more
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Metallicity and Superconductivity in Doped Strontium Titanate [PDF]
Annual Review of Condensed Matter Physics, 2018 Strontium titanate is a wide-gap semiconductor avoiding a ferroelectric instability thanks to quantum fluctuations. This proximity leads to strong screening of static Coulomb interaction and paves the way for the emergence of a very dilute metal with ...
C. Collignon +4 more
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Metal–metal bonded compounds and metal clusters [PDF]
Inorganica Chimica Acta, 2015 Preface.
Falvello, Larry R., Murillo, Carlos A.
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The Astrophysical Journal Letters, 2023 Milky Way Cepheid variables with accurate Hubble Space Telescope photometry have been established as standards for primary calibration of the cosmic distance ladder to achieve a percent-level determination of the Hubble constant ( H _0 ).
Anupam Bhardwaj +12 more
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Slater-Pauling behavior and origin of the half-metallicity of the full-Heusler alloys [PDF]
, 2002 Using the full-potential screened Korringa-Kohn-Rostoker method we study the full-Heusler alloys based on Co, Fe, Rh, and Ru. We show that many of these compounds show a half-metallic behavior; however, in contrast to the half-Heusler alloys the energy ...
I. Galanakis +2 more
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