Recent H, J and K' observations of the Sa spiral NGC 3593 are presented. They show a stellar ring-like structure in the galaxy circumnuclear regions characterized by the presence of a counterrotating disk of stars and gas. The analysis of J-K' and H-K' colors indicate that the counterrotating stellar component is actually younger than the rest of the galaxy. This supports the idea that in NGC 3593 the counterrotating stars have been formed from acquired gas.

The external origin of counterrotation in NGC 3593

PIZZELLA, ALESSANDRO;CORSINI, ENRICO MARIA;BERTOLA, FRANCESCO;
1999

Abstract

Recent H, J and K' observations of the Sa spiral NGC 3593 are presented. They show a stellar ring-like structure in the galaxy circumnuclear regions characterized by the presence of a counterrotating disk of stars and gas. The analysis of J-K' and H-K' colors indicate that the counterrotating stellar component is actually younger than the rest of the galaxy. This supports the idea that in NGC 3593 the counterrotating stars have been formed from acquired gas.
Star Formation in Early Type Galaxies
1886733848
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2431020
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 1
social impact