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Título: | The ALHAMBRA survey: Tight dependence of the optical mass-to-light ratio on galaxy colour up to z = 1.5 |
Autor: | López-Sanjuan, Carlos; Díaz-García, L. A.; Cenarro, A. J.; Fernández-Soto, Alberto CSIC ORCID CVN ; Viironen, Kerttu; Molino, Alberto CSIC ORCID; Benítez, Narciso CSIC ORCID; Cristóbal-Hornillos, David CSIC; Moles, Mariano CSIC; Varela, Jesús CSIC; Arnalte-Mur, P. CSIC ORCID; Ascaso, Begoña CSIC ORCID; Cerviño, Miguel CSIC ORCID ; González Delgado, Rosa M. CSIC ORCID ; Husillos, César CSIC ORCID; Márquez, Isabel CSIC ORCID; Masegosa, Josefa CSIC ORCID ; Olmo, Ascensión del CSIC ORCID; Pović, Mirjana; Perea, Jaime CSIC ORCID; Castander, Francisco J. CSIC ORCID | Palabras clave: | Galaxies: statistics Galaxies: stellar content Galaxies: fundamental parameters |
Fecha de publicación: | 2019 | Editor: | EDP Sciences | Citación: | Astronomy and Astrophysics 622: A51 (2019) | Resumen: | [Aims] Our goal is to characterise the dependence of the optical mass-to-light ratio on galaxy colour up to z = 1.5, expanding the redshift range explored in previous work. [Methods] From the redshifts, stellar masses, and rest-frame luminosities of the ALHAMBRA multi-filter survey, we derive the mass-to-light ratio versus colour relation for quiescent and for star-forming galaxies. The intrinsic relation and its physical dispersion are derived with a Bayesian inference model. [Results] The rest-frame i-band mass-to-light ratio of quiescent and star-forming galaxies presents a tight correlation with the rest-frame (g - i) colour up to z = 1.5. The mass-to-light ratio versus colour relation is linear for quiescent galaxies and quadratic for star-forming galaxies. The intrinsic dispersion in these relations is 0.02 dex for quiescent galaxies and 0.06 dex for star-forming ones. The derived relations do not present a significant redshift evolution and are compatible with previous local results in the literature. Finally, these tight relations also hold for g- and r-band luminosities. [Conclusions] The derived mass-to-light ratio versus colour relations in ALHAMBRA can be used to predict the mass-to-light ratio from a rest-frame optical colour up to z = 1.5. These tight correlations do not change with redshift, suggesting that galaxies have evolved along the derived relations during the last 9 Gyr. | Versión del editor: | https://doi.org/10.1051/0004-6361/201833402 | URI: | http://hdl.handle.net/10261/179632 | DOI: | 10.1051/0004-6361/201833402 | Identificadores: | doi: 10.1051/0004-6361/201833402 issn: 1432-0746 |
Aparece en las colecciones: | (IAA) Artículos (ICE) Artículos (IFCA) Artículos (CAB) Artículos |
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IAA_2019_aa33402-18.pdf | 2,26 MB | Adobe PDF | Visualizar/Abrir |
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