Local luminous infrared galaxies: Spatially resolved mid-infrared observations with Spitzer/IRS
- Alonso Herrero, Almudena
- Pereira Santaella, Miguel
- Rieke, George H.
- Colina, Luis
- Engelbracht, Charles W.
- Pérez González, Pablo Guillermo
- Díaz Santos, Tanio
- Smith, J. D. T.
DOIAbstract
Luminous Infrared (IR) Galaxies (LIRGs, L_IR=10^11-10 L_⨀) are an important cosmological class of galaxies as they are the main contributors to the co-moving star formation rate density of the universe at z=1. In this paper we present a guaranteed time observation (GTO) Spitzer InfraRed Spectrograph (IRS) program aimed to obtain spectral mapping of a sample of 14 local d<76Mpc LIRGs. The data cubes map, at least, the central 20arcsec X 20arcsec to 30 arcsec X 30 arcsec regions of the galaxies, and use all four IRS modules covering the full 5-38 μ m spectral range. The final goal of this project is to characterize fully the mid-IR properties of local LIRGs as a first step to understanding their more distant counterparts. In this paper we...
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