The asymmetric relations among galaxy color, structure, and environment

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dc.creatorQuintero, Alejandro D.
dc.creatorBerlind, Andreas A.
dc.creatorBlanton, MichaelR.
dc.creatorHogg, David W.
dc.date2006-11-11
dc.date2006-11-15
dc.date.accessioned2026-07-07T07:30:46Z
dc.date.available2026-07-07T07:30:46Z
dc.descriptionWe investigate the dependences of galaxy star-formation history and galaxy morphology on environment, using color and H-alpha equivalent width as star-formation history indicators, using concentration and central surface brightness as morphological indicators, and using clustocentric distance as an environment indicator. Clustocentric distance has the virtue that it can be measured with very high precision over a large dynamic range. We find the following asymmetry between morphological and star-formation history parameters: star-formation history parameters relate directly to the clustocentric distance while morphological parameters relate to the clustocentric distance only indirectly through their relationships with star-formation history. This asymmetry has important implications for the role that environment plays in shaping galaxy properties and it places strong constraints on theoretical models of galaxy formation. Current semi-analytic models do not reproduce this effect.
dc.descriptionSubmitted to ApJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0611361
dc.identifierhttp://arxiv.org/abs/astro-ph/0611361
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118518
dc.subjectAstrophysics
dc.titleThe asymmetric relations among galaxy color, structure, and environment
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