@article{10902/18528,
year = {2019},
month = {11},
url = {http://hdl.handle.net/10902/18528},
abstract = {ABSTRACT: Aims. We take advantage of the capability of the OTELO survey to obtain the Hα luminosity function (LF) at z∼0.40. Because of the deepest coverage of OTELO, we are able to determine the faint end of the LF, and thus better constrain the star formation rate and the 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 in terms of minimum flux and equivalent width. We also take advantage of the pseudo-spectra built for each source, which allow the identification 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 minimal
luminosities 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 find
that 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},
organization = {This work was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) under the grants AYA2013-46724-P, AYA2014-58861-C3-1-P, AYA2014-58861-C3-2-P, AYA2014-58861-C3-3-P, AYA2016-75808-R, AYA2016-75931-C2-2-P, AYA2017-88007-C3-1-P, and AYA2017-88007-C3-2-P},
publisher = {EDP Sciences},
publisher = {A&A 631, A10 (2019)},
title = {The OTELO survey II. The faint-end of the Hα luminosity function at z ∼ 0.40},
author = {Ramón Pérez, Marina and Bongiovanni, Ángel and Pérez García, Ana María and Cepa, Jordi and Lara López, Maritza A. and Diego, José A. de and Alfaro, Emilio and Castañeda, Héctor O. and Cerviño, Miguel and Fernández Lorenzo, Mirian and Gallego, Jesús and González, J. Jesús and González Serrano, José Ignacio and Nadolny, Jakub and Oteo Gómez, Iván and Pérez Martínez, Ricardo and Pintos Castro, Irene and Mirjana, Povic and Sánchez Portal, Miguel},
}