On the Origin of S0 Stellar Populations

Bibcode
2001Ap&SS.276..823S
DOI
10.1023/A:1017566617573
Shioya, Yasuhiro; Bekki, Kenji; Vazdekis, A.
Bibliographical reference

Astrophysics and Space Science, v. 276, Issue 2/4, p. 823-829 (2001).

Advertised on:
3
2001
Journal
Astrophysics and Space Science
Number of authors
3
IAC number of authors
0
Citations
2
Refereed citations
2
Description
We investigate a one-zone chemo-photometric evolutionary model of truncated spiral galaxies with and without starbursts in order to explore the origin of the spectrophotometric properties of S0s. First, we show that 1) the tight U-V colour-magnitude (CM) relation cannot reject the model with a starburst and 2) the model with a starburst can explain the difference in the I-K colour-magnitude relation between S0 galaxies and spiral galaxies. Next, we demonstrate how we can distinguish the truncated spirals with a starburst from those without a starburst by using the CaII-Hδ/λ4045 diagram (proposed by Leonardi and Rose, 1996) and the 1550-V colour.
Type
Non-refereed

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