Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The STAGES view of red spirals and dusty red galaxies: Mass-dependent quenching of star formation in cluster infall
Monthly Notices of the Royal Astronomical Society, Volume 393, No. 4, Year 2009
Notification
URL copied to clipboard!
Description
We investigate the properties of optically passive spirals and dusty red galaxies in the A901/2 cluster complex at redshift ∼0.17 using rest-frame near-ultraviolet-optical spectral energy distributions, 24-μm infrared data and Hubble Space Telescope morphologies from the STAGES data set. The cluster sample is based on COMBO-17 redshifts with an rms precision of σcz ≈ 2000 km s-1. We find that 'dusty red galaxies' and 'optically passive spirals' in A901/2 are largely the same phenomenon, and that they form stars at a substantial rate, which is only four times lower than that in blue spirals at fixed mass. This star formation is more obscured than in blue galaxies and its optical signatures are weak. They appear predominantly in the stellar mass range of log M*/M ⊙ = [10, 11] where they constitute over half of the star-forming galaxies in the cluster; they are thus a vital ingredient for understanding the overall picture of star formation quenching in clusters. We find that the mean specific star formation rate (SFR) of star-forming galaxies in the cluster is clearly lower than in the field, in contrast to the specific SFR properties of blue galaxies alone, which appear similar in cluster and field. Such a rich red spiral population is best explained if quenching is a slow process and morphological transformation is delayed even more. At log M*/ M⊙ < 10, such galaxies are rare, suggesting that their quenching is fast and accompanied by morphological change. We note that edge-on spirals play a minor role; despite being dust reddened they form only a small fraction of spirals independent of environment. © 2009 RAS.
Authors & Co-Authors
Aragon-Salamanca, Alfonso
United Kingdom, Nottingham
University of Nottingham
Balogh, Michael L.
Canada, Waterloo
University of Waterloo
Bell, Eric F.
Germany, Heidelberg
Max Planck Institute for Astronomy
Gray, Meghan E.
United Kingdom, Nottingham
University of Nottingham
Peng, Chien Y.
Canada, Ottawa
National Research Council Canada
United States, Baltimore
Space Telescope Science Institute
Bacon, David J.
United Kingdom, Portsmouth
University of Portsmouth
Caldwell, John A.R.
United States, Fort Davis
University of Texas
Gallazzi, Anna R.
Germany, Heidelberg
Max Planck Institute for Astronomy
Häussler, Boris
United Kingdom, Nottingham
University of Nottingham
Heymans, Catherine E.
Canada, Vancouver
The University of British Columbia
United Kingdom, Edinburgh
The University of Edinburgh
Jahnke, Knud
Germany, Heidelberg
Max Planck Institute for Astronomy
Jogee, Shardha
United States, Austin
The University of Texas at Austin
van Kampen, Eelco V.
Austria, Innsbruck
Universität Innsbruck
McIntosh, Daniel H.
United States, Amherst
University of Massachusetts Amherst
United States, Kansas City
University of Missouri-kansas City
Meisenheimer, Klauss
Germany, Heidelberg
Max Planck Institute for Astronomy
Papovich, Casey J.
United States, College Station
Texas A&m University
Sánchez, Sebastián F.
Unknown Affiliation
Andrew Taylor, Andrew N.
United Kingdom, Edinburgh
The University of Edinburgh
Wisotzki, Lutz
Germany, Potsdam
Leibniz Institute for Astrophysics Potsdam
Zheng, Xianzhong
China, Beijing
National Astronomical Observatories Chinese Academy of Sciences
Statistics
Citations: 176
Authors: 20
Affiliations: 18
Identifiers
Doi:
10.1111/j.1365-2966.2008.14204.x
ISSN:
00358711
Study Design
Cross Sectional Study