Showing 41 - 60 results of 187,573 for search '"metallicity"', query time: 0.59s Refine Results
  1. 41

    The influence of metallicity on helium and CO core masses in massive stars by Petrović Jelena

    Published 2023-01-01
    “…The black hole formation limit for primary stars with the SMC metallicity is under 30 M⊙. While the least massive primary stars with Solar metallicity end up as neutron stars, all primary stars with the SMC metallicity and all secondary stars complete their evolution as black holes. …”
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    Article
  2. 42

    On the Nature of the Core of α Centauri A: The Impact of the Metallicity Mixture by Benard Nsamba, Benard Nsamba, Tiago L. Campante, Tiago L. Campante, Mário J. P. F. G. Monteiro, Mário J. P. F. G. Monteiro, Margarida S. Cunha, Margarida S. Cunha, Sérgio G. Sousa, Sérgio G. Sousa

    Published 2019-04-01
    “…We address the impact of varying the metallicity mixture on the determination of the energy transport process at work in the core of α Centauri A. …”
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    Article
  3. 43
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  5. 45

    THE MODELLING OF THE MASS-METALLICITY RELATION FOR THE LOCAL GROUP DWARF GALAXIES by M. V. Ryabova, Yu. A. Shchekinov

    Published 2008-12-01
    “…We present results of modelling of the mass-metallicity relation for the Local Group dwarf spheroidal (dSph) galaxies. …”
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    Article
  6. 46

    ABOUT THE HEAVY ELEMENTS ABUNDANCES IN THE ATMOSPHERES OF STARS WITH LOW METALLICITY by V. F. Gopka, A. V. Yushchenko, T. V. Mishenina, V. V. Kovtyukh

    Published 2017-04-01
    “…Results will be used for determinations of the abundances of these elements with the spectrum synthesis method in these and other metal-poor stars.…”
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    Article
  7. 47

    Inner galactic disc metallicity distributions and the bulge-disc relation by Haywood M., Gómez A., Babusiaux C., Hill V., Katz D., Royer F.

    Published 2012-02-01
    “…We present the results of a high resolution spectroscopic survey of over 200 red clump stars in the inner galactic disc (3–5 kpc from the galactic centre, Z ≤ 300pc from the plane). The metallicity distribution of the sample is clearly more metal-rich than the solar neighborhood, implying a significant radial gradient in the galactic disc at the intermediate ages probed by red clump stars. …”
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    Article
  8. 48

    Exploring X-Ray Properties of Low-metallicity Dwarf Galaxies by Jenna M. Cann, Kimberly A. Weaver, Ryan W. Pfeifle, Nathan J. Secrest, Shobita Satyapal, Mario Gliozzi

    Published 2024-01-01
    “…In this paper, we explore the X-ray properties of a sample of 37 low-metallicity dwarf galaxies using archival XMM observations, and we compare the properties of this population against a representative sample of higher-metallicity counterparts. …”
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    Article
  9. 49

    Dust Production around Carbon-Rich Stars: The Role of Metallicity by Ambra Nanni, Sergio Cristallo, Jacco Th. van Loon, Martin A. T. Groenewegen

    Published 2021-07-01
    “…We here investigated the role of the metallicity in the dust formation process from a theoretical viewpoint. …”
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    Article
  10. 50

    The Effects of Rotation, Metallicity, and Magnetic Field on the Islands of Failed Supernovae by Lei Li, Chunhua Zhu, Sufen Guo, Helei Liu, Guoliang Lü

    Published 2023-01-01
    “…However, the effects of metallicity, rotation, and magnetic field on the islands of explodabilty of massive stars are not clear. …”
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    Article
  11. 51

    Environmental Dependence of the Mass–Metallicity Relation in Cosmological Hydrodynamical Simulations by Kai Wang, Xin Wang, Yangyao Chen

    Published 2023-01-01
    “…The combined effect is that massive galaxies are more metal-poor in massive halos and low-mass galaxies are more metal-rich in massive halos. …”
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    Article
  12. 52

    Emergent metallicity at the grain boundaries of higher-order topological insulators by Daniel J. Salib, Vladimir Juričić, Bitan Roy

    Published 2023-09-01
    “…However, when the Burgers vector of the constituting edge dislocations points toward the gapless corners or hinges, both second-order and third-order topological insulators accommodate self-organized emergent topological metals near the zero energy (half-filling) in the GB mini Brillouin zone. …”
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    Article
  13. 53

    The Period Distribution of Hot Jupiters Is Not Dependent on Host Star Metallicity by Samuel W. Yee, Joshua N. Winn

    Published 2023-01-01
    “…The probability that a Sun-like star has a close-orbiting giant planet (period ≲1 yr) increases with stellar metallicity. Previous work provided evidence that the period distribution of close-orbiting giant planets is also linked to metallicity, hinting that there two formation/evolution pathways for such objects, one of which is more probable in high-metallicity environments. …”
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    Article
  14. 54

    The evolution of the mass-metallicity relation and its scatter in IllustrisTNG by Torrey, Paul, Vogelsberger, Mark, Marinacci, Federico, Pakmor, Rüdiger, Springel, Volker, Nelson, Dylan, Naiman, Jill, Pillepich, Annalisa, Genel, Shy, Weinberger, Rainer, Hernquist, Lars

    Published 2021
    “…We analyze the distribution and evolution of metals within the IllustrisTNG simulation suite with a focus on the gas-phase mass-metallicity relation (MZR). …”
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    Article
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    ARE THE EFFECTS OF STRUCTURE FORMATION SEEN IN THE CENTRAL METALLICITY OF GALAXY CLUSTERS? by Elkholy, Tamer Y., Canizares, Claude R., Bautz, Marshall W.

    Published 2015
    “…On the other hand, the metallicity dispersion does not change with mass in the outer regions of the clusters, suggesting that most of the outer metals originate from a source with a more uniform metallicity level, such as during pre-enrichment. …”
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    Article
  17. 57

    Stress induced half-metallicity in surface defected germanium nanowires by Sk, Mahasin Alam, Ng, Man-Fai, Yang, Shuo-Wang, Lim, Kok Hwa

    Published 2013
    “…We also find that only the defected GeNWs that fall under (3) are potentially half-metallic. Our results predict that half-metallic GeNWs can be obtained via engineering of the surface defects and the structures without the presence of impurity dopants.…”
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    Journal Article
  18. 58

    The origin and evolution of the mass-metallicity relation using GalICS by Sakstein, J, Pipino, A, Devriendt, J, Maiolino, R

    Published 2011
    “… <p>The Galaxies in Cosmological Simulations (GalICS) semi-analytical model of hierarchical galaxy formation is used to investigate the effects of different galactic properties, including star formation rate (SFR) and outflows, on the shape of the mass–metallicity relation and to predict the relation for galaxies at redshift <em>z</em>= 2.27 and 3.54. …”
    Journal article
  19. 59

    On the far-infrared metallicity diagnostics: applications to high-redshift galaxies by Rigopoulou, D, Pereira-Santaella, M, Magdis, G, Cooray, A, Farrah, D, Marques-Chaves, R, Perez-Fournon, I, Riechers, D

    Published 2017
    “…In an earlier paper we modelled the far-infrared emission from a star-forming galaxy using the photoionization code CLOUDY and presented metallicity sensitive diagnostics based on farinfrared fine structure line ratios. …”
    Journal article
  20. 60

    ISM chemistry in metal-rich environments: molecular tracers of metallicity by Davis, T, Bayet, E, Crocker, A, Topal, S, Bureau, M

    Published 2013
    “…We provide the community with linear approximations to the relationship between the HCN and CS column density ratio and metallicity. Further study will clearly be required to determine if this, or any, molecular tracer can be used to robustly determine gas-phase metallically, but that a relationship exists at all suggests that in the future it may be possible to calibrate a metallicity indicator for the molecular interstellar medium. © 2013 The Authors.…”
    Journal article