RT info:eu-repo/semantics/article
T1 The OTELO survey II. The faint-end of the H¿ luminosity function at z ~ 0.40
A1 Cepa Nogue, Jorge
A1 Ramón-Pérez, Marina
A1 Bongiovanni, Ángel
A1 Pérez García, Ana María
A1 Lara López, Maritza A.
A1 Diego, José A. de
A1 Alfaro, Emilio
A1 Castañeda, Héctor O.
A1 Cerviño, Miguel
A1 Fernández Lorenzo, Mirian
A1 Gallego, Jesús
A1 González, J. Jesús
A1 González Serrano, J. Ignacio
A1 Nadolny, Jakub
A1 Oteo Gómez, Iván
A1 Pérez Martínez, Ricardo
A1 Pintos Castro, Irene
A1 Povi´c, Mirjana
A1 Sánchez Portal, Miguel
A2 Astrofísica
A2 Grupo de investigación: Evolución de galaxias
K1 surveys
K1 galaxies: star formation
K1 galaxies: active
K1 galaxies: luminosity function
K1 mass function
AB Aims. We take advantage of the capability of the OTELO survey to obtain the Hα luminosity function (LF) at z ∼ 0.40. Because ofthe deepest coverage of OTELO, we are able to determine the faint end of the LF, and thus better constrain the star formation rate andthe number of galaxies at low luminosities. The AGN contribution to this LF is estimated as well.Methods. We make use of the multiwavelength catalogue of objects in the field compiled by the OTELO survey, which is unique interms of minimum flux and equivalent width. We also take advantage of the pseudo-spectra built for each source, which allow theidentification of emission lines and the discrimination of different types of objects.Results. The Hα luminosity function at z ∼ 0.40 is obtained, which extends the current faint end by almost 1 dex, reaching minimalluminosities of log10 Llim = 38.5 erg s−1(or ∼0.002 M  yr−1). The AGN contribution to the total Hα luminosity is estimated. We findthat no AGN should be expected below a luminosity of log10 L = 38.6 erg s−1. From the sample of non-AGN (presumably, pure SFG)at z ∼ 0.40 we estimated a star formation rate density of ρSFR = 0.012 ± 0.005 M  yr−1 Mpc−3
YR 2019
FD 2019
LK http://riull.ull.es/xmlui/handle/915/35400
UL http://riull.ull.es/xmlui/handle/915/35400
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 26-jun-2024