The star formation history of early-type galaxies

GALEX Team

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The UV light is an effective tracer for young stars. Base on the recent GALEX UV data of nearby, bright early-type galaxies, we find that 30% of them show a UV flux that is too strong to explain without invoking a 1-3% (in total stellar mass) star formation rate in the last billion years. This implies that low-level residual star formation was common during the last few billion years even in bright, early-type galaxies. We discuss the implications for the formation and evolution of early-type galaxies. This article is a summary of our recent work (Yi et al. 2005; Schawinski et al. 2006; Kaviraj et al. 2006).
Original languageEnglish
Title of host publicationThe 3rd Mexico-Korea Conference on Astrophysics
Subtitle of host publicationTelescopes of the Future and San Pedro Martir
EditorsS. Kurtz, J. Franco, S. Hong, G. Garcia-Segura, A. Santillan, J. Kim, I. Han
PublisherInstituto de Astronomía, UNAM
Pages109-112
Volume28
ISBN (Print)9789703232734
Publication statusPublished - 2007
EventThe third Mexico-Korea conference on astrophysics: telescopes of the future and San Pedro Martir - UNAM, Mexico City, Mexico
Duration: 8 Nov 200511 Nov 2005

Publication series

NameRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
PublisherInstituto de Astronomia, UNAM
Volume28

Conference

ConferenceThe third Mexico-Korea conference on astrophysics: telescopes of the future and San Pedro Martir
Country/TerritoryMexico
CityMexico City
Period8/11/0511/11/05

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