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BIBTEX RIS

Evolution of elliptical galaxies. I - The multiphase model

1993; IOP Publishing; Volume: 410; Linguagem: Inglês

10.1086/172723

ISSN

1538-4357

Autores

F. Ferrini, Bianca M. Poggianti,

Tópico(s)

Stellar, planetary, and galactic studies

Resumo

view Abstract Citations (22) References (61) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Evolution of Elliptical Galaxies. I. The Multiphase Model Ferrini, Federico ; Poggianti, Bianca M. Abstract We present a multiphase model for the evolution of elliptical galaxies. Diffuse gas, molecular clouds, stars and remnants are taken into account. Cloud--cloud collisions and stimulated processes are the main causes of star formation. The occurrence of winds driven by Supernovae is considered, and the evolution of the system is computed also after the first wind, allowing for further star formation from the restored gas. The evolution of the abundances of 15 elements or isotopes is followed with detailed stellar nucleosynthesis. Stellar lifetimes are taken into account and a new IMF has been adopted. The gas removal due to the Supernovae explosions depends on the galactic mass and the presence of dark matter; the subsequent wind episodes are crucial to the intergalactic gas enrichment. Good agreement is obtained for current SNs rates, Star Formation Rate and gas masses when compared to the available data. Publication: The Astrophysical Journal Pub Date: June 1993 DOI: 10.1086/172723 arXiv: arXiv:astro-ph/9211003 Bibcode: 1993ApJ...410...44F Keywords: Astronomical Models; Elliptical Galaxies; Galactic Evolution; Nuclear Astrophysics; Stellar Evolution; Abundance; Chemical Evolution; Interstellar Gas; Molecular Clouds; Star Formation Rate; Supernova Remnants; Astrophysics; GALAXIES: ELLIPTICAL AND LENTICULAR; CD; GALAXIES: EVOLUTION; GALAXIES: ISM; GALAXIES: STELLAR CONTENT; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ABUNDANCES; STARS: FORMATION; Astrophysics E-Print: 32 pages, Tex. 12 Figures can be sended if requested full text sources arXiv | ADS |

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