Probing Cool and Warm Infrared Galaxies using Photometric and Structural Measures

Abstract

We have analyzed a sample of nearby cool and warm infrared (IR) galaxies using photometric and structural parameters. The set of measures include far-infrared color ($C={\log }_{10}[S_{60\mu m}/S_{100\mu m}]$), total IR luminosity ($L_{TIR}$), radio surface brightness as well as radio, near-infrared, and optical sizes. In a given luminosity range cool and warm galaxies are considered as those sources that are found approximately $1\sigma$ below and above the mean color in the far-infrared $C-L_{TIR}$ diagram. We find that galaxy radio surface brightness is well correlated with color whereas size is less well correlated with color. Our analysis indicates that IR galaxies that are dominated by cool dust are large, massive spirals that are not strongly interacting or merging and presumably the ones with the least active star formation. Dust in these cool objects is less centrally concentrated than in the more typical luminous and ultra-luminous IR galaxies that are dominated by warm dust. Our study also shows that low luminosity early type unbarred and transitional spirals are responsible for the large scatter in the $C-L_{TIR}$ diagram. Among highly luminous galaxies, late type unbarred spirals are predominately warm, and early type unbarred and barred are systematically cooler. We highlight the significance of $C-L_{TIR}$ diagram in terms of local and high redshifts sub-millimeter galaxies.

Accepted for publication in ApJ, 2006, 23 pages, 3 postscript figures, 1 table. The table can be obtained on request from the authors

References in corpus (33)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The Global Schmidt Law in Star Forming Galaxies
• Unveiling Dust-enshrouded Star Formation in the Early Universe: a Sub-mm Survey of the Hubble Deep Field
• A Deep Sub-millimeter Survey of Lensing Clusters: A New Window on Galaxy Formation and Evolution
• What Powers Ultra-luminous IRAS Galaxies?
• The IRAS Revised Bright Galaxy Sample (RBGS)
• 2MASS Extended Source Catalog: Overview and Algorithms
• Dusty star forming galaxies at high redshift
• The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant
• The SCUBA Local Universe Galaxy Survey I: First Measurements of the Submillimetre Luminosity and Dust Mass Functions
• High-resolution Millimeter Imaging of Submillimeter Galaxies
• The Frequency of Barred Spiral Galaxies in the Near-IR
• The rapid formation a large rotating disk galaxy three billion years after the Big Bang
• The SCUBA Local Universe Galaxy Survey II. 450 micron data - evidence for cold dust in bright IRAS Galaxies
• Deep radio imaging of the SCUBA 8-mJy survey fields: sub-mm source identifications and redshift distribution
• The IRAS 1.2 Jy Survey: Redshift Data
• Secular Evolution Via Bar-Driven Gas Inflow: Results from BIMA SONG
• The nature and evolution of Ultraluminous Infrared Galaxies: A mid-infrared spectroscopic survey
• The IRAS 1-Jy Survey of Ultraluminous Infrared Galaxies: I. The sample and Luminosity Function
• The Influence of Bars on Nuclear Activity
• The HDF-North SCUBA Super-map I: Submillimetre maps, sources and number counts
• The star-formation history of the universe - an infrared perspective
• Cirrus models for local and high z SCUBA galaxies
• The bi-variate luminosity-color distribution of IRAS galaxies, and implications for the high redshift Universe
• An Initial Look at the Far Infrared-Radio Correlation within Nearby Star-forming Galaxies using the Spitzer Space Telescope
• Interferometric 890 micron Images of High Redshift Submillimeter Galaxies
• HI Observations of Giant Low Surface Brightness Galaxies
• Optically faint counterparts to the ISO-FIRBACK 170 micron population: the discovery of cold, luminous galaxies at high redshift
• Dust in Spiral Galaxies: Comparing Emission and Absorption to Constrain Small-Scale and Very Cold Structures
• 1.25 mm Observations of a Complete Sample of IRAS Galaxies: (II) Dust Properties
• The Structure of IR Luminous Galaxies at 100 Microns
• Fitting optical source counts with an infrared-defined model: insights into galaxy evolution
• Sub-mm clues to elliptical galaxy formation

Cited by in corpus (1)

• Exploring Infrared Properties of Giant Low Surface Brightness Galaxies