Gas Inflows, Star Formation and Metallicity Evolution in Galaxy Pairs (Contributo in atti di convegno)

Type
Label
  • Gas Inflows, Star Formation and Metallicity Evolution in Galaxy Pairs (Contributo in atti di convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1017/S1743921311022873 (literal)
Alternative label
  • Paola Di Matteo (1); Marco Montuori (2); Matthew D. Lehnert (1); Françcoise Combes (3); Benoit Semelin (3) (2011)
    Gas Inflows, Star Formation and Metallicity Evolution in Galaxy Pairs
    in IAUS 277: Tracing the ancestry of galaxies (on the land of our ancestors), Ouagadougou, Burkina Faso, 13-17 december 2010
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Paola Di Matteo (1); Marco Montuori (2); Matthew D. Lehnert (1); Françcoise Combes (3); Benoit Semelin (3) (literal)
Pagina inizio
  • 246 (literal)
Pagina fine
  • 249 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8447761&fileId=S1743921311022873 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • Tracing the Ancestry of Galaxies (on the land of our ancestors) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#volumeInCollana
  • 6 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • S277 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) GEPI, Observatoire de Paris, CNRS, Université Paris Diderot 5, Place Jules Janssen, 92190 Meudon, France (2) SMC-ISC-CNR & Physics Department, Universitá di Roma La Sapienza Pl. Aldo Moro 2, 00185 Rome, Italy (3) Observatoire de Paris, LERMA, CNRS, UPMC 61 Avenue de l'Observatoire, 75014 Paris, France (literal)
Titolo
  • Gas Inflows, Star Formation and Metallicity Evolution in Galaxy Pairs (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
  • C. Carignan, F. Combes & K.C. Freeman, eds. (literal)
Abstract
  • It has been known since many decades that galaxy interactions can induce star formation (hereafter SF) enhancements and that one of the driving mechanisms of this enhancement is related to gas inflows into the central galaxy regions, induced by asymmetries in the stellar component, like bars. In the last years many evidences have been accumulating, showing that interacting pairs have central gas-phase metallicities lower than those of field galaxies, by ~0.2-0.3 dex on average. These diluted ISM metallicities have been explained as the result of inflows of metal-poor gas from the outer disk to the galaxy central regions. A number of questions arises: What's the timing and the duration of this dilution? How and when does the SF induced by the gas inflow enrich the circum-nuclear gas with re-processed material? Is there any correlation between the timing and strength of the dilution and the timing and intensity of the SF? By means of Tree-SPH simulations of galaxy major interactions, we have studied the effect that gas inflows have on the ISM dilution, and the effect that the induced SF has, subsequently, in re-enriching the nuclear gas. In this contribution, we present the main results of this study. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Autore CNR di
Prodotto
Insieme di parole chiave di
data.CNR.it