Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/55904

Title

Spectrophotometric evolution of spiral galaxies with truncated star formation: an evolutionary link between spirals and S0s in distant clusters

Author(s)

Shioya, Yasuhiro;  Bekki, Kenji;  Couch, Warrick J.;  De Propris, Roberto

Abstract

A one-zone chemospectrophotometric model is used to investigate the time evolution of disk galaxies whose star formation is truncated and to determine the dependence of this evolution on the previous star formation history and the truncation epoch. Truncated spirals show red colors ∼1 Gyr after truncation and evolve spectrally from an e(b) type, down through the e(a), a + k, and k + a classes, to finally become a k type. The exact behavior in this phase depends on the truncation epoch and the star formation history prior to truncation. For example, earlier type disks show redder colors and do not show a + k-type spectra after truncation of star formation. We also discuss a possible evolutionary link between the k-type galaxies with spiral morphology found in distant clusters and present-day S0s by investigating whether truncated spirals reproduce the infrared color-magnitude relation of Coma galaxies. We suggest that only less luminous, later-type disk galaxies whose star formation is truncated at intermediate and high redshifts can reproduce the red I - K colors observed for S0s in the Coma cluster.

Publication type

Journal article

Source

Astrophysical Journal, Vol. 565, no. 1 I (Jan 2002), pp. 223-237

Publication year

2002

FOR Code(s)

0201 Astronomical and Space Sciences

Keyword(s)

Clusters;  Formation;  Galaxies;  Interactions;  ISM;  Structure

Publisher

University of Chicago Press

ISSN

0004-637X

Publisher URL

http://dx.doi.org/10.1086/324433

Copyright

Copyright © 2002 American Astronomical Society. All rights reserved.

Peer reviewed