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Probing Galaxy Evolution via Interactions and Mergers in the IRAS Revised Bright Galaxy Sample

Mazzarella, Joseph M. and Sanders, David B. and Ishida, Catherine M. and Jensen, Joseph B. and Kim, Dong-Chan (2006) Probing Galaxy Evolution via Interactions and Mergers in the IRAS Revised Bright Galaxy Sample. In: Multiwavelength Mapping of Galaxy Formation and Evolution. ESO Astrophysics Symposia. Springer , Berlin, pp. 420-421. ISBN 978-3-540-25665-6. https://resolver.caltech.edu/CaltechAUTHORS:20191204-094845724

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Abstract

In order to interpret observations of luminous infrared/sub-mm galaxies and AGNs at high redshifts, and to study their evolution from the earliest epochs of star formation to the present, it is important to construct a comprehensive understanding of the properties of objects that are thought to be the closest analogs in the local Universe. These are the luminous infrared galaxies (LIRGs, L _(ir) > 10¹¹ L⊙) and ultraluminous infrared galaxies (ULIRGs, L_( ir) > 10¹² L⊙) identified in the IRAS survey. The IRAS Revised Bright Galaxy Sample (RBGS; [1]) is a complete sample of extragalactic objects with total 60 μm flux density > 5.24 Jy, covering the entire sky surveyed by IRAS at Galactic latitudes |b| > 5 degrees. The 629 objects in the RBGS have a median redshift of 0.0082, and their visual and near-infrared properties span a wide range from normal, isolated gas-rich spirals at low luminosities (L_(ir) < 10^(10.5) L⊙) through an increasing fraction of interacting galaxy pairs and ongoing mergers powered by enhanced star formation and AGNs among the LIRGs and ULIRGs. There are 22 ULIRGs (3.5%) and 180 LIRGs (29%) in the RBGS, making this an ideal sample for detailed study and comparison with observations of high-redshift galaxies. A primary goal of this study is to delineate the transformations that occur in basic properties as galaxies evolve from separate disks through the interaction and merger sequence, and possibly into elliptical galaxies.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/10995020_89DOIArticle
https://rdcu.be/b3YnzPublisherFree ReadCube access
ORCID:
AuthorORCID
Mazzarella, Joseph M.0000-0002-8204-8619
Sanders, David B.0000-0002-1233-9998
Additional Information:© 2005 Springer-Verlag Berlin Heidelberg. First Online 05 January 2006.
Subject Keywords:Elliptical Galaxy; Galaxy Evolution; Extragalactic Object; Infrared Galaxy; Separate Disk
Series Name:ESO Astrophysics Symposia
Record Number:CaltechAUTHORS:20191204-094845724
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20191204-094845724
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:100178
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:04 Dec 2019 17:59
Last Modified:05 May 2020 22:44

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