Bibcode
Cava, A.; Pérez-González, P. G.; Eliche-Moral, M. Carmen; Ricciardelli, Elena; Vidal-García, Alba; Alcalde Pampliega, Belen; Alonso-Herrero, Almudena; Barro, Guillermo; Cardiel, Nicolas; Cenarro, A. Javier; Charlot, Stephane; Daddi, Emanuele; Dessauges-Zavadsky, Miroslava; Domínguez Sánchez, Helena; Espino-Briones, Nestor; Esquej, Pilar; Gallego, Jesus; Hernán-Caballero, Antonio; Huertas-Company, Marc; Koekemoer, Anton M.; Muñoz-Tuñon, C.; Rodríguez-Espinosa, J. M.; Rodríguez-Muñoz, Lucia; Tresse, Laurence; Villar, Victor
Bibliographical reference
The Astrophysical Journal, Volume 812, Issue 2, article id. 155, 22 pp. (2015).
Advertised on:
10
2015
Journal
Citations
17
Refereed citations
16
Description
In this paper, we present a comprehensive analysis of star-forming
galaxies (SFGs) at intermediate redshifts (z ∼ 1). We combine the
ultra-deep optical spectro-photometric data from the Survey for High-z
Absorption Red and Dead Sources (SHARDS) with deep UV-to-FIR
observations in the GOODS-N field. Exploiting two of the 25 SHARDS
medium-band filters, F687W17 and F823W17, we select [O ii] emission line
galaxies at z ∼ 0.84 and z ∼ 1.23 and characterize their
physical properties. Their rest-frame equivalent widths
(EWrf([O ii])), line fluxes, luminosities, star formation
rates (SFRs), and dust attenuation properties are investigated. The
evolution of EWrf([O ii]) closely follows the SFR density
evolution of the universe, with a trend of EWrf([O ii])
\propto (1 + z)3 up to redshift z ≃ 1, followed by a
possible flattening. The SF properties of the galaxies selected on the
basis of their [O ii] emission are compared with complementary samples
of SFGs selected by their MIR and FIR emission, and also with a general
mass-selected sample of galaxies at the same redshifts. We demonstrate
observationally that the UVJ diagram (or, similarly, a cut in the
specific SFR) is only partially able to distinguish the quiescent
galaxies from the SFGs. The SFR–M* relation is
investigated for the different samples, yielding a logarithmic slope
∼1, in good agreement with previous results. The dust attenuations
derived from different SFR indicators (UV(1600), UV(2800), [O ii], IR)
are compared and show clear trends with respect to both the stellar mass
and total SFR, with more massive and highly star-forming galaxies being
affected by stronger dust attenuation.
Related projects
Starbursts in Galaxies GEFE
Starsbursts play a key role in the cosmic evolution of galaxies, and thus in the star formation (SF) history of the universe, the production of metals, and the feedback coupling galaxies with the cosmic web. Extreme SF conditions prevail early on during the formation of the first stars and galaxies, therefore, the starburst phenomenon constitutes a
Casiana
Muñoz Tuñón