Results 1 to 10 of about 204,968 (275)

Chemical Evolution of Galaxies [PDF]

Publications of the Astronomical Society of the Pacific, 2000
Chemical evolution of galaxies brings together ideas on stellar evolution and nucleosynthesis with theories of galaxy formation, star formation and galaxy evolution, with all their associated uncertainties.
Arimoto N., Arnaud M., B. E. J. Pagel, Beers T. C., Edvardsson B., Fuhrmann K., Gasson R. E. M., Gratton R., Gustafsson B., Hoyle F., Larson R. B., Madau P., Maeder A., Marigo P., Matteucci F., Nissen P. E., Pagel B. E. J., Pagel B. E. J., Renzini A., Scalo J., Thielemann F.-K., White S. D. M.   +21 more
core   +7 more sources

Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation

Open Astronomy, 2010
We present a model of chemical and spectrophotometric evolution of disk galaxies based on a stochastic self-propagating star formation scenario. The model incorporates galaxy formation through the process of accretion, chemical and photometric evolution ...
Mineikis T., Vansevičius V.
doaj   +3 more sources

EMPRESS. XI. SDSS and JWST Search for Local and z ∼4–5 Extremely Metal-poor Galaxies (EMPGs): Clustering and Chemical Properties of Local EMPGs

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, Masami Ouchi, Kimihiko Nakajima, Yoshiaki Ono, Michael Rauch, Yuki Isobe, Yuichi Harikane, Kanako Narita, Fakhri Zahedy, Yi Xu, Hidenobu Yajima, Hajime Fukushima, Yutaka Hirai, Ji Hoon Kim, Shigeki Inoue, Haruka Kusakabe, Chien-Hsiu Lee, Tohru Nagao, Masato Onodera   +18 more
doaj   +1 more source

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, Sebastián F. Sánchez, Alfredo Mejía-Narváez, Eduardo Lacerda, Leticia Carigi, Gustavo Bruzual, Paola Alvarez-Hurtado, Niv Drory, Richard R. Lane, Nicholas Fraser Boardman, Guillermo A. Blanc   +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, Fontani Francesco, Rivilla Víctor M., Caselli Paola   +3 more
doaj   +1 more source

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, F. Matteucci, CIOTTI, LUCA   +2 more
openaire   +3 more sources

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, Zach Lewis, Jorryt Matthee, Joseph F. Hennawi, Leindert Boogaard, Anna Feltre, Themiya Nanayakkara, Roland Bacon, Amy Barger, Jarle Brinchmann, Marijn Franx, Takuya Hashimoto, Hanae Inami, Haruka Kusakabe, Floriane Leclercq, Lucie Rowland, Anthony J. Taylor, Christy Tremonti, Tanya Urrutia, Joop Schaye, Charlotte Simmonds, Eloïse Vitte   +21 more
doaj   +1 more source

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, Jens Hjorth, Wenlei Chen, Patrick L. Kelly, Hayley Williams, Yu-Heng Lin, Claudia Scarlata, Adi Zitrin, Tom Broadhurst, Jose M. Diego, Xiaosheng Huang, Alexei V. Filippenko, Ryan J. Foley, Saurabh Jha, Anton M. Koekemoer, Masamune Oguri, Ismael Perez-Fournon, Justin Pierel, Frederick Poidevin, Lou Strolger   +19 more
doaj   +1 more source

Galaxy formation with radiative and chemical feedback [PDF]

, 2015
Here we introduce GAMESH, a novel pipeline which implements self-consistent radiative and chemical feedback in a computational model of galaxy formation. By combining the cosmological chemical-evolution model GAMETE with the radiative transfer code CRASH,
de Bennassuti, M., Graziani, L., Kawata, D., Maselli, A., Salvadori, S., Schneider, R.   +5 more
core   +3 more sources

The Fall of a Giant. Chemical evolution of Enceladus, alias the Gaia Sausage [PDF]

, 2019
We present the first chemical evolution model for Enceladus, alias the Gaia Sausage, to investigate the star formation history of one of the most massive satellites accreted by the Milky Way during a major merger event.
Aguirre, Victor Silva, Calura, Francesco, Cescutti, Gabriele, Matteucci, Francesca, Miglio, Andrea, Spitoni, Emanuele, Vincenzo, Fiorenzo   +6 more
core   +4 more sources