Optically-Passive Spirals: the Missing Link in Gradual Star Formation Suppression upon Cluster Infall

Christian Wolf*, Alfonso Aragon-Salamanca, Michael Balogh, Marco Barden, Eric F. Bell, Meghan E. Gray, Chien Y. Peng, David Bacon, Fabio D. Barazza, Asmus Boehm, John A. R. Caldwell, Anna Gallazzi, Boris Hauessler, Catherine Heymans, Knud Jahnke, Shardha Jogee, Eelco van Kampen, Kyle Lane, Daniel H. McIntosh, Klaus MeisenheimerCasey Papovich, Sebastian F. Sanchez, Andy Taylor, Lutz Wisotzki, Xianzhong Zheng

*Corresponding author for this work

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

Abstract

Galaxies migrate from the blue cloud to the red sequence when their star formation is quenched. Here, we report on galaxies quenched by environmental effects and not by mergers or strong AGN as often invoked: They form stars at a reduced rate which is optically even less conspicuous, and manifest a transition population of blue spirals evolving into S0 galaxies. These 'optically passive' or 'red spirals' are found in large numbers in the STAGES project (and by Galaxy Zoo) in the infall region of clusters and groups.

Original languageEnglish
Title of host publicationSTARBURST-AGN CONNECTION
EditorsW Wang, SQ Yang, ZJ Luo, Z Chen
Place of PublicationSAN FRANCISCO
PublisherASTRONOMICAL SOC PACIFIC
Pages248-253
Number of pages6
ISBN (Print)978-1-58381-696-7
Publication statusPublished - 2009
EventInternational Conference on the Starburst-AGN Connection - Shanghai, United Kingdom
Duration: 27 Oct 200831 Oct 2008

Publication series

NameAstronomical Society of the Pacific Conference Series
PublisherASTRONOMICAL SOC PACIFIC
Volume408

Conference

ConferenceInternational Conference on the Starburst-AGN Connection
CountryUnited Kingdom
Period27/10/0831/10/08

Keywords

  • GALAXIES

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