Mass–Metallicity Relation and Fundamental Metallicity Relation of Metal-poor Star-forming Galaxies at 0.6 < Z < 0.9 from the eBOSS Survey
نویسندگان
چکیده
منابع مشابه
THE FMOS-COSMOS SURVEY OF STAR-FORMING GALAXIES AT z ∼ 1.6 II. THE MASS-METALLICITY RELATION AND THE DEPENDENCE ON STAR FORMATION RATE AND DUST EXTINCTION
We investigate the relationships between stellar mass, gas-phase oxygen abundance (metallicity), star formation rate, and dust content of star-forming galaxies at z∼1.6 using Subaru/FMOS spectroscopy in the COSMOS field. The mass-metallicity relation at z ∼ 1.6 is steeper than the relation observed in the local Universe. The steeper MZ relation at z ∼ 1.6 is mainly due to evolution in the stell...
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We present a sample of 42 high-mass low-metallicity outliers from the mass–metallicity relation of star-forming galaxies. These galaxies have stellar masses that span log(M⋆/M⊙) ∼ 9.4 to 11.1 and are offset from the mass–metallicity relation by −0.3 to −0.85dex in 12+ log(O/H). In general, they are extremely blue, have high star formation rates for their masses, and are morphologically disturbe...
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We compare the results of Grimm et al. (2003) and Ranalli et al. (2003) on the LX– SFR relation in normal galaxies. Based on the LX−stellar mass dependence for LMXBs, we show, that low SFR (< ∼ 1 M⊙/year) galaxies in the Ranalli et al. sample are contaminated by the X-ray emission from low mass X-ray binaries, unrelated to the current star formation activity. The most important conclusion from ...
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We present recent progress in searching for galaxies at redshift from z ≃ 5 to z ≃ 10. Wide-field and senstive surveys with 8m class telescopes have been providing more than several hundreds of star forming galaxies at z ≃ 5 – 7 that are probed in the optical window. These galaxies are used to study the early cosmic star formation activity as well as the early structure formation in the univers...
متن کاملMass-metallicity relation of zCOSMOS galaxies at z ≈ 0.7, its dependence on star formation rate, and the existence of massive low-metallicity galaxies⋆
Aims. The knowledge of the number and physical nature of low-metallicity massive galaxies is crucial for determining and interpreting the mass-metallicity relation (MZR). Methods. Using VLT-ISAAC near-infrared (NIR) spectroscopy of 39 zCOSMOS 0.5 < z < 0.9 galaxies, we have measured Hα and [N II] λ 6584 emission line fluxes for galaxies with [O II] λ 3727, Hβ, and [O III] λ 5007 available from ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2018
ISSN: 1538-4357
DOI: 10.3847/1538-4357/aae9ef