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The OTELO survey: new evidence of downsizing from the specific star formation rates, stellar mass functions, and star formation histories of a sample of low-mass galaxies at 0.38 < z < 1.43

dc.contributor.authorCedrés, Bernabé
dc.contributor.authorBongiovanni, Ángel
dc.contributor.authorCepa, Jordi
dc.contributor.authorPadilla-Torres, Carmen P.
dc.contributor.authorNadolny, Jakub
dc.contributor.authorLara-López, Maritza A.
dc.contributor.authorGonzález Serrano, José Ignacio 
dc.contributor.authorAlfaro, Emilio J.
dc.contributor.authorCerviño, Miguel
dc.contributor.authorGallego, Jesús
dc.contributor.authorGonzález-Otero, Mauro
dc.contributor.authorSánchez-Portal, Miguel
dc.contributor.authorDe Diego, José A.
dc.contributor.authorPérez-Martínez, Ricardo
dc.contributor.authorPérez-García, Ana María
dc.contributor.authorPovian, Mirjana
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2025-12-05T11:39:52Z
dc.date.available2025-12-05T11:39:52Z
dc.date.issued2025-04
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.otherPID-2021-122544NB-C41es_ES
dc.identifier.otherPID-2021-123417OB-I00es_ES
dc.identifier.otherPID-2021-122544NB-C44es_ES
dc.identifier.otherPID-2021-122544NB-C43es_ES
dc.identifier.otherPID2022-136598NB-C33es_ES
dc.identifier.otherPID2022-136640NB-C21es_ES
dc.identifier.otherPID2022-140871NB-C21es_ES
dc.identifier.otherCEX2021-515001131-Ses_ES
dc.identifier.otherCEX2021-001131-Ses_ES
dc.identifier.urihttps://hdl.handle.net/10902/38453
dc.description.abstractAims. We present an analysis of the emitters (Ha, Hb, and [O ii]) from the OTELO survey, in order to characterize the star formation properties of low-mass galaxies (<109 M stellar masses). Methods. We calculated the specific star formation rate function, the stellar mass function, and, by integrating them, the associated densities for both quantities: the specific star formation rate density and the stellar mass density. We obtained the star formation history of our low-mass sample galaxies by fitting the spectral energy distribution of the galaxies. We also compared our results with those from the literature at different mass regimes and redshifts. Results. The specific star formation rate density and the stellar mass density for low-mass galaxies do not depend on the redshift, contrary to the behaviour presented by the high-mass galaxies. We found that the star formation histories of low-mass galaxies are characterized by a constant star formation rate, in contrast to high-mass galaxies. We interpret these results, in the context of the downsizing effect, as representative of the faster evolution of massive galaxies compared with low-mass ones.es_ES
dc.description.sponsorshipThe authors wish to thank the anonymous referee for her/his feed-back and useful suggestions. B.C. and J.C. acknowledge the suppor of the Spanish Ministry of Science, Innovation and Universities through the project PID–2021–122544NB–C41. A.B. and M.S.P. acknowledge the support of the Spanish Ministry of Science, Innovation and Universities through the project PID–2021–122544NB–C43. J.N. acknowledge the support of the National Science Centre, Poland through the SONATA BIS grant 2018/30/E/ST9/00208, 2021/41/N/ST9/02662 and 2023/49/B/ST9/00066 and the support of the Polish National Agency for Academic Exchange (NAWA) Bekker grant BPN/BEK/2023/1/00271. J.G. acknowledge the support of he Spanish Ministry of Science, Innovation and Universities through the project PID–2021–123417OB–I00. J.I.G-S. acknowledge the support of he Spanish Ministry of Science, Innovation and Universities through the project PID–2021–122544NB–C44. M.A.L.L. acknowledges support from the Spanish grant PID2021–123417OB–I00, and the Ramón y Cajal program funded by the Spanish Government (RYC2020–029354–I). M.C. acknowledges support from the Spanish grants PID-2021–122544NB–C41 and PID2022– 136598NB–C33 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”. E.J.A. has been partially funded by the Spanish MCIN/AEI grant PID2022–136640NB–C21 and acknowledges financial support from the Severo Ochoa grant CEX2021–001131–S funded by MCIN/AEI/ 10.13039/501100011033. J.A.D. acknowledges the support of UNAM–PAPIIT grant IN116325. M.P. acknowledges the support of the Spanish Ministry of Science, Innovation and Universities through the project PID2022– 140871NB–C21, the Severo Ochoa grant CEX2021–515001131–S funded by MCIN/AEI/10.13039/501100011033, and support from the Space Science and Geospatial Institute (SSGI) funded through the Ministry of Innovation and Technology (MInT). B.C. wishes to thank Carlota Leal Álvarez by her support during the development of this paper. This article is based on observations made with the Gran Telescopio Canarias (GTC) at Roque de los Muchachos Observatory of the Instituto de Astrofísica de Canarias on the island of La Palma. This study makes use of data from AEGIS, a multi-wavelength sky survey conducted with the Chandra, GALEX, Hubble, Keck, CFHT, MMT, Subaru, Palomar, Spitzer, VLA, and other telescopes, and is supported in part by the NSF, NASA, and the STFC. Based on observations obtained with MegaPrime/MegaCam, a joint project of the CFHT and CEA/IRFU, at the Canada–France–Hawaii Telescope (CFHT) which is operated by the National Research Council (NRC) of Canada, the Institut National des Science de l’Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. This work is based in part on data products produced at Terapix available at the Canadian Astronomy Data Centre as part of the Canada-France-Hawaii Telescope Legacy Survey, a collaborative project of NRC and CNRS. Based on observations obtained with WIRCam, a joint project of CFHT, Taiwan, Korea, Canada, France, at the Canada–France– Hawaii Telescope (CFHT), which is operated by the National Research Council (NRC) of Canada, the Institute National des Sciences de l’Univers of the Centre National de la Recherche Scientifique of France, and the University of Hawaii. This work is based in part on data products produced at TERAPIX, the WIRDS A85, page 9 of 10 Cedrés, B., et al.: A&A, 696, A85 (2025) (WIRcam Deep Survey) consortium, and the Canadian Astronomy Data Centre. This research was supported by a grant from the Agence Nationale de la Recherche ANR-07-BLAN-0228es_ES
dc.format.extent10 p.es_ES
dc.language.isoenges_ES
dc.publisherEDP Scienceses_ES
dc.rightsAttribution 4.0 Internationales_ES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceAstronomy & Astrophysics, 2025, 696, A85es_ES
dc.titleThe OTELO survey: new evidence of downsizing from the specific star formation rates, stellar mass functions, and star formation histories of a sample of low-mass galaxies at 0.38 < z < 1.43es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1051/0004-6361/202452898es_ES
dc.rights.accessRightsopenAccesses_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-136598NB-C33/ES/LAS DIVERSAS FACETAS DE LA FORMACION ESTELAR EN EL UNIVERSO (ESTALLIDOS 8)/es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-136640NB-C21/ES/LA ESTRUCTURA Y LA HISTORIA DE FORMACION DEL CENTRO GALACTICO Y DEL DISCO GALACTICO LOCAL/es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-140871NB-C21/ES/COMPRENSION DE LOS AGN EN LAS GALAXIAS: DESDE LAS BAJAS A LAS ALTAS TASAS DE ACRECION/es_ES
dc.identifier.DOI10.1051/0004-6361/202452898
dc.type.versionpublishedVersiones_ES


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