The physical properties of local (U)LIRGs: a comparison with nearby early- and late-type galaxies

Abstract

In order to pinpoint the place of the (U)LIRGs in the local Universe we examine the properties of a sample of 67 such systems and compare them with those of 268 ETGs and 542 LTGs from the DustPedia database. We make use of multi-wavelength photometric data and the CIGALE SED fitting code to extract their physical parameters. The median SEDs as well as the values of the derived parameters were compared to those of the local ETGs and LTGs. In addition to that, (U)LIRGs were divided into seven classes, according to the merging stage of each system, and variations in the derived parameters were investigated. (U)LIRGs occupy the `high-end' on the dust and stellar mass, and SFR in the local Universe with median values of 5.2$\times 10^7{M}_{\odot }$, 6.3$\times 10^{10}{M}_{\odot }$ and 52$M_{\odot }$yr${}^{-1}$, respectively. The PDR-dust emission in (U)LIRGs is 11.7% of the total dust luminosity, significantly higher than ETGs (1.6%) and the LTGs (5.2%). The median value of the dust temperature in (U)LIRGs is 32 K, which is higher compared to both the ETGs (28 K) and the LTGs (22 K). Small differences, in the derived parameters, are seen for the seven merging classes of our sample of (U)LIRGs with the most evident one being on the star-formation rate, where in systems in late merging stages the median SFR reaches up to 99 M${}_{\odot }$ yr${}^{-1}$ compared to 26 M${}_{\odot }$ yr${}^{-1}$ for the isolated ones. In contrast to the local normal galaxies where old stars dominate the stellar emission, the young stars in (U)LIRGs contribute with 64% of their luminosity to the total stellar luminosity. The fraction of the dust-absorbed stellar luminosity is extremely high in (U)LIRGs (78%) compared to 7% and 25% in ETGs and ETGs, respectively. The fraction of the stellar luminosity used to heat up the dust grains is very high in (U)LIRGs, while 74% of the dust emission comes from the young stars.

References in corpus (19)

• Cosmic Star Formation History
• HyperLEDA. III. The catalogue of extragalactic distances
• Constraining the Low-Mass Slope of the Star Formation Sequence at 0.5<z<2.5
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• SKIRT: an Advanced Dust Radiative Transfer Code with a User-Friendly Architecture
• X-CIGALE: fitting AGN/galaxy SEDs from X-ray to infrared
• On the frequency, intensity and duration of starburst episodes triggered by galaxy interactions and mergers
• Stellar Masses and SFRs for 1M Galaxies from SDSS and WISE
• Constraining the properties of AGN host galaxies with Spectral Energy Distribution modeling
• Growing supermassive black holes in the late stages of galaxy mergers are heavily obscured
• A parsec-resolution simulation of the Antennae galaxies: Formation of star clusters during the merger
• DustPedia - A Definitive Study of Cosmic Dust in the Local Universe
• Old and young stellar populations in DustPedia galaxies and their role in dust heating
• Dissecting the active galactic nucleus in Circinus -- I. Peculiar mid-IR morphology explained by a dusty hollow cone
• Dissecting the active galactic nucleus in Circinus -- II. A thin dusty disc and a polar outflow on parsec scales
• X-ray flux in the SED modelling: An application of X-CIGALE in the XMM-XXL field
• DustPedia - the relationships between stars, gas and dust for galaxies residing in different environments
• The AGN contribution to the UV-FIR luminosities of interacting galaxies and its role in identifying the Main Sequence
• The physical properties of Spitzer/IRS galaxies derived from their UV to 22 $\mu$m spectral energy distribution

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• The Role of AGN in Luminous Infrared Galaxies from the Multiwavelength Perspective
• Low frequency radio continuum imaging and SED modeling of 11 LIRGs: radio-only and FUV to radio bands
• Probing the spectral shape of dust emission with the DustPedia galaxy sample
• Radio-only and Radio-to-far-ultraviolet Spectral Energy Distribution Modeling of 14 ULIRGs: Insights into the Global Properties of Infrared Bright Galaxies
• SMART: spectral energy distributions Markov chain analysis with radiative transfer models
• Relating spatially resolved optical attenuation, dust and gas in nearby galaxies
• A comparative study of galaxy evolution with four different active galactic nucleus torus models and two different host geometries
• Measuring the ISM Content of Nearby, Luminous, Type 1 and Type 2 QSOs through CO and [C II]