Results 1 to 10 of about 2,514 (168)
The Astrophysical Journal, 2023 We search for local extremely metal-poor galaxies (EMPGs), selecting photometric candidates by broadband color excess and machine-learning techniques with the SDSS photometric data.
Moka Nishigaki +18 more
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Chemical Evolution History of MaNGA Galaxies
The Astrophysical Journal, 2022 Abstract We show the results of a study using the spectral synthesis technique study for the full MaNGA sample showing their chemical enrichment history (ChEH) as well as the evolution of the stellar mass–metallicity relation (MZR) over cosmic time.
Artemi Camps-Fariña +10 more
openaire +4 more sources
Nitrogen isotopes in the interstellar medium: A chemical journey across the Galaxy [PDF]
EPJ Web of Conferences, 2022 One of the most important tools to investigate the chemical history of our Galaxy and our own Solar System is to measure the isotopic fractionation of chemical elements. This is the process that distributes the less abundant stable isotopes of an element
Colzi Laura +3 more
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Chemical evolution of Seyfert galaxies [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractWe computed the chemical evolution of Seyfert galaxies, residing in spiral bulges, based on an updated model for the Milky Way bulge with updated calculations of the Galactic potential and of the feedback from the central supermassive black hole (BH) in a spherical approximation. We followed the evolution of bulges of masses 2 × 109 − 1011M⊙ by
S. K. Ballero +2 more
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JWST/NIRSpec Measurements of Extremely Low Metallicities in High Equivalent Width Lyα Emitters
The Astrophysical Journal, 2023 Deep Very Large Telescope/MUSE optical integral field spectroscopy has recently revealed an abundant population of ultra-faint galaxies ( M _UV ≈ −15; 0.01 L _⋆ ) at z = 2.9−6.7 due to their strong Ly α emission with no detectable continuum.
Michael V. Maseda +21 more
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Evolution of the Mass–Metallicity Relation from Redshift z ≈ 8 to the Local Universe
The Astrophysical Journal, 2023 A tight positive correlation between the stellar mass and the gas-phase metallicity of galaxies has been observed at low redshifts. The redshift evolution of this correlation can strongly constrain theories of galaxy evolution.
Danial Langeroodi +19 more
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The Origin of the Nuclear Star-forming Ring in NGC 3182
The Astronomical Journal, 2023 We investigate the stellar and ionized gas kinematics, and stellar populations of NGC 3182 galaxy using integral field spectrograph data from the Calar Alto Legacy Integral Field Area survey. We try to clarify the nature of the ring structure in NGC 3182.
Mina Pak +3 more
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Chemical Evolution of Galaxies [PDF]
Publications of the Astronomical Society of the Pacific, 1979 SUMMARYThis paper discusses the initial mass function, the oxygen yield and the helium abundance in irregular and blue compact galaxies.
openaire +2 more sources
A 30m Large Program: The CO Line Atlas of the Whirlpool Galaxy Survey (CLAWS) [PDF]
EPJ Web of Conferences, 2022 Robust knowledge of the distribution, amount, and physical/chemical state of the cold molecular (H2) gas is key to understanding galaxy evolution. With the help of multi-CO line observations, it is possible to study the molecular gas distribution and ...
den Brok Jakob, Bigiel Frank
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Chemical evolution of local galaxies
, 2022 We show the results of a study using the spectral synthesis technique study to measure the chemical evolution of local galaxies. The main parameters measured are the chemical enrichment history (ChEH) and the evolution of the stellar mass-metallicity relation (MZR) over cosmic time.
Fariña, Artemi Camps +2 more
openaire +1 more source