J. I. González‐Serrano
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View article: GLACE survey: OSIRIS/GTC multi-object spectroscopy of the rich galaxy cluster ZwCl 0024.0+1652 at <i>z</i> ∼0.4
GLACE survey: OSIRIS/GTC multi-object spectroscopy of the rich galaxy cluster ZwCl 0024.0+1652 at <i>z</i> ∼0.4 Open
Context. Galaxy clusters are among the largest and densest structures in the Universe. Their high density generally increases the suppression of star formation, known as quenching, altering galaxy properties. Aims. We study the quenching o…
View article: The Lockman-SpReSo Project. Spectroscopic Analysis of Type 1 Active Galactic Nuclei
The Lockman-SpReSo Project. Spectroscopic Analysis of Type 1 Active Galactic Nuclei Open
We present the first optical-UV spectral systematic analysis of 30 Type 1 active galactic nuclei selected in the far-infrared and X-ray in the Lockman-SpReSO Survey. The sample of faint objects ( m B = 19.6–21.8) covers a large redshift ra…
View article: 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
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 Open
We present an analysis of the emitters (\ha, \hb, and \oii) from the OTELO survey, in order to characterize the star formation properties of low-mass galaxies ($<10^9$ M$_{\odot}$ stellar masses). We calculated the specific star formation …
View article: The OTELO survey
The OTELO survey Open
Aims. We present an analysis of the emitters (H α , H β , and [O II ]) from the OTELO survey, in order to characterize the star formation properties of low-mass galaxies (< 10 9 M ⊙ stellar masses). Methods. We calculated the specific star…
View article: The Lockman-SpReSO project
The Lockman-SpReSO project Open
Aims. In this work, we carry out a comprehensive study using galaxy data from the Lockman Spectroscopic Redshift Survey using Osiris (Lockman-SpReSO) project, a far-infrared (FIR) selected sample of galaxies observed using optical spectros…
View article: GLACE survey: OSIRIS/GTC tuneable imaging of the galaxy cluster ZwCl 0024.0+1652
GLACE survey: OSIRIS/GTC tuneable imaging of the galaxy cluster ZwCl 0024.0+1652 Open
Aims. In this paper, we revisit the data for the galaxy cluster ZwCl 0024.0+1652 provided by the GLACE survey and study the mass–metallicity function and its relationship with the environment. Methods. Here we describe an alternative way t…
View article: The Lockman–SpReSO project
The Lockman–SpReSO project Open
Context. The Lockman–SpReSO project is an optical spectroscopic survey of 956 far-infrared (FIR) objects within the Lockman Hole field limited by magnitude R C ( A B ) < 24.5. Fe II and Mg II absorption lines have been detected in 21 out o…
View article: The Lockman-SpReSO project. Galactic flows in a sample of far-infrared galaxies
The Lockman-SpReSO project. Galactic flows in a sample of far-infrared galaxies Open
Methods. We performed measurements of the \MgII, \MgI, \FeIIa, \FeIIb, and \FeIIc\ spectral lines present in the spectra of the selected sample to determine the EW and velocity of the flows observed in the star-forming galaxies. Subsequent…
View article: IRAM 30-meter millimeter follow-up of deep OSIRIS-GTC optical surveys
IRAM 30-meter millimeter follow-up of deep OSIRIS-GTC optical surveys Open
It is broadly accepted that CO is a reliable tracer of H2 in massive IR (L IR ≳ 10 9 L ⊙ ) galaxies, and that there are clear correlations between L IR and L’ CO that are qualitatively independent of environment and even redshift. We prese…
View article: The Lockman-SpReSO project
The Lockman-SpReSO project Open
Context. Extragalactic surveys are a key tool for better understanding the evolution of galaxies. Both deep and wide-field surveys serve to provide a clearer emerging picture of the physical processes that take place in and around galaxies…
View article: The Lockman-SpReSO project. Description, target selection, observations and preliminary results
The Lockman-SpReSO project. Description, target selection, observations and preliminary results Open
Context. Extragalactic surveys are a key tool for better understanding the evolution of galaxies. Both deep and wide-field surveys serve to provide a clearer emerging picture of the physical processes that take place in and around galaxies…
View article: Nonsequential neural network for simultaneous, consistent classification, and photometric redshifts of OTELO galaxies
Nonsequential neural network for simultaneous, consistent classification, and photometric redshifts of OTELO galaxies Open
[Context]: Computational techniques are essential for mining large databases produced in modern surveys with value-Added products.
\n[Aims]: This paper presents a machine learning procedure to carry out a galaxy morphological classificati…
View article: The OTELO survey revealing a population of low-luminosity active star-forming galaxies at z ∼ 0.9
The OTELO survey revealing a population of low-luminosity active star-forming galaxies at z ∼ 0.9 Open
Aims. We study a sample of Hβ emission line sources at z ∼ 0.9 to identify the star-forming galaxies sample and characterise them in terms of line luminosity, stellar mass, star formation rate, and morphology. The final aim is to obtain th…
View article: Nonsequential neural network for simultaneous, consistent classification, and photometric redshifts of OTELO galaxies
Nonsequential neural network for simultaneous, consistent classification, and photometric redshifts of OTELO galaxies Open
Context. Computational techniques are essential for mining large databases produced in modern surveys with value-added products. Aims. This paper presents a machine learning procedure to carry out a galaxy morphological classification and …
View article: The OTELO Survey: The Star Formation Rate Evolution of Low-mass Galaxies
The OTELO Survey: The Star Formation Rate Evolution of Low-mass Galaxies Open
We present the analysis of a sample of H α , H β , and [O ii ] emission line galaxies from the OTELO survey, with masses typically below and redshifts between z ∼ 0.4 and 1.43. We study the star formation rate, star forma…
View article: The OTELO survey: faint end of the luminosity function of [O_(II)]3727 emitters at ‹z›=1.43
The OTELO survey: faint end of the luminosity function of [O_(II)]3727 emitters at ‹z›=1.43 Open
Aims. In this paper, we aim to study the main properties and luminosity function (LF) of the [O II]3727 emitters detected in the OTELO survey in order to characterise the star formation processes in low-mass galaxies at z ∼ 1.43 and to con…
View article: The OTELO survey
The OTELO survey Open
Aims. In this paper, we aim to study the main properties and luminosity function (LF) of the [O II ]3727 emitters detected in the OTELO survey in order to characterise the star formation processes in low-mass galaxies at z ∼ 1.43 and to co…
View article: The OTELO survey as a morphological probe. Last ten Gyr of galaxy evolution
The OTELO survey as a morphological probe. Last ten Gyr of galaxy evolution Open
Context. The morphology of galaxies provide us with a unique tool for relating and understanding other physical properties and their changes over the course of cosmic time. It is only recently that we have been afforded access to a wealth …
View article: GLACE survey: Galaxy activity in ZwCl0024+1652 cluster from strong optical emission lines
GLACE survey: Galaxy activity in ZwCl0024+1652 cluster from strong optical emission lines Open
Although ZwCl0024+1652 galaxy cluster at z ∼ 0.4 has been thoroughly analysed, it lacks a comprehensive study of star formation and nuclear activity of its members. With GaLAxy Cluster Evolution (GLACE) survey, a total of 174 H α emission-…
View article: Galaxy classification: deep learning on the OTELO and COSMOS databases
Galaxy classification: deep learning on the OTELO and COSMOS databases Open
Context. The accurate classification of hundreds of thousands of galaxies observed in modern deep surveys is imperative if we want to understand the universe and its evolution. Aims. Here, we report the use of machine learning techniques t…
View article: The OTELO survey
The OTELO survey Open
The OTELO survey is a very deep, blind exploration of a selected region of\nthe Extended Groth Strip and is designed for finding emission-line sources\n(ELSs). The survey design, observations, data reduction, astrometry, and\nphotometry, a…
View article: The OTELO survey
The OTELO survey Open
Context. A sample of low-mass H α emission line sources at z ∼ 0.4 was studied in the context of the mass-metallicty relation (MZR) and its possible evolution. We drew our sample from the OSIRIS Tunable Emission Line Object (OTELO) survey,…
View article: The OTELO survey. A case study of [O III]4959,5007 emitters at = 0.83
The OTELO survey. A case study of [O III]4959,5007 emitters at = 0.83 Open
The OTELO survey is a very deep, blind exploration of a selected region of the Extended Groth Strip and is designed for finding emission-line sources (ELSs). The survey design, observations, data reduction, astrometry, and photometry, as w…
View article: The OTELO survey. III. Demography, morphology, IR luminosity and environment of AGN hosts
The OTELO survey. III. Demography, morphology, IR luminosity and environment of AGN hosts Open
We take advantage of the capabilities of the OTELO survey to select and study the AGN population in the field. We performed an analysis of the properties of these objects, including their demography, morphology, and IR luminosity. Focusing…
View article: The OTELO survey. I. Description, data reduction, and multi-wavelength catalogue
The OTELO survey. I. Description, data reduction, and multi-wavelength catalogue Open
The evolution of galaxies through cosmic time is studied observationally by means of extragalactic surveys. The OTELO survey aims to provide the deepest narrow-band survey to date in terms of minimum detectable flux and emission line equiv…
View article: The OTELO survey
The OTELO survey Open
Context. The OSIRIS Tunable Filter Emission Line Object (OTELO) survey is a very deep, blind exploration of a selected region of the Extended Groth Strip and is designed for finding emission-line sources (ELSs). The survey design, observat…
View article: The OTELO survey
The OTELO survey Open
Aims . We take advantage of the capabilities of the OSIRIS Tunable Emission Line Object (OTELO) survey to select and study the AGN population in the field. In particular, we aim to perform an analysis of the properties of these objects, in…
View article: A morphological study of galaxies in ZwCl0024+1652, a galaxy cluster at redshift z ∼ 0.4
A morphological study of galaxies in ZwCl0024+1652, a galaxy cluster at redshift z ∼ 0.4 Open
The well-known cluster of galaxies ZwCl0024+1652 at z ∼ 0.4 lacks an in-depth morphological classification of its central region. While previous studies provide a visual classification of a patched area, we used the public code called gala…
View article: The OTELO survey I. Description, data reduction, and multi-wavelength catalogue
The OTELO survey I. Description, data reduction, and multi-wavelength catalogue Open
Context. The evolution of galaxies through cosmic time is studied observationally by means of extragalactic surveys. The usefulness of these surveys is greatly improved by increasing the cosmological volume, in either depth or area, and by…
View article: The OTELO survey II. The faint-end of the Hα luminosity function at z ∼ 0.40
The OTELO survey II. The faint-end of the Hα luminosity function at z ∼ 0.40 Open
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 …