Título:
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The SPITZER survey of stellar structure in galaxies (S(^4)G): precise stellar mass distributions from automated dust correction at 3.6 ?m
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Autores:
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Gil de Paz, Armando ;
otros, ...
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Tipo de documento:
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texto impreso
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Editorial:
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University Chicago Press, 2015-07
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Astrofísica
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Materia = Ciencias: Física: Astronomía
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Tipo = Artículo
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Resumen:
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The mid-infrared is an optimal window to trace stellar mass in nearby galaxies and the 3.6 ?m IRAC band has been exploited to this effect, but such mass estimates can be biased by dust emission. We present our pipeline to reveal the old stellar flux at 3.6 ?m and obtain stellar mass maps for more than 1600 galaxies available from the Spitzer Survey of Stellar Structure in Galaxies (S^4G). This survey consists of images in two infrared bands (3.6 and 4.5 ?m), and we use the Independent Component Analysis (ICA) method presented in Meidt et al. to separate the dominant light from old stars and the dust emission that can significantly contribute to the observed 3.6 ?m flux. We exclude from our ICA analysis galaxies with low signal-to-noise ratio (S/N
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En línea:
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https://eprints.ucm.es/id/eprint/33281/1/gildepaz167libre.pdf
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