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The impact from survey depth and resolution on the morphological classification of galaxies

Opened Access The impact from survey depth and resolution on the morphological classification of galaxies

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Autor: Pović, Mirjana
Márquez, I.
Masegosa, J.
Perea, Jaime D.
Del Olmo, A.
Simpson, Chris J.
Aguerri, José Alfonso López
Ascaso, Begoña
Jiménez-Teja, Yolanda
López-Sanjuán, Carlos
Molino, Alberto
Pérez García, Ana M.
Viironen, Kerttu
Husillos, C.
Cristóbal-Hornillos, David
Caldwell, Caroline E.
Benítez, N.
Alfaro, E. J.
Aparicio-Villegas, T.
Broadhurst, Tom J.
Cabrera Caño, Jesús María
Castander, Francisco Javier J.
Cepa, Jordi P.
Cerviño, Miguel
Fernandez-Soto, Alberto
González Delgado, R. M.
Infante, Leopoldo
Martínez, Vicent J.
Moles, Mariano
Prada, Francisco
Quintana, José María S.O.S.C.
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2015
Publicado en: Monthly Notices of the Royal Astronomical Society, 453 (2), 1644-1668.
Tipo de documento: Artículo
Resumen: We consistently analyse for the first time the impact of survey depth and spatial resolution on the most used morphological parameters for classifying galaxies through non-parametric methods: Abraham and Conselice-Bershady concentration indices, Gini, M20moment of light, asymmetry, and smoothness. Three different non-local data sets are used, Advanced Large Homogeneous Area Medium Band Redshift Astronomical (ALHAMBRA) and Subaru/XMMNewton Deep Survey (SXDS, examples of deep ground-based surveys), and Cosmos Evolution Survey (COSMOS, deep space-based survey). We used a sample of 3000 local, visually classified galaxies, measuring their morphological parameters at their real redshifts (z ~ 0). Then we simulated them to match the redshift and magnitude distributions of galaxies in the non-local surveys. The comparisons of the two sets allow us to put constraints on the use of each parameter for morphological classification and evaluate the effectiveness of the commonly used morphological...
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Cita: Pović, M., Márquez, I., Masegosa, J., Perea, J.D., Del Olmo, A., Simpson, C.J.,...,Quintana, J.M.S.O.S.C. (2015). The impact from survey depth and resolution on the morphological classification of galaxies. Monthly Notices of the Royal Astronomical Society, 453 (2), 1644-1668.
Tamaño: 8.654Mb
Formato: PDF

URI: https://hdl.handle.net/11441/71035

DOI: 10.1093/mnras/stv1663

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