54 citations · 378 across the 28 of their papers we have counts for
28 papers
The OTELO Survey: The main sequence of low-mass galaxies
Bernabé Cedrés, Jordi Cepa, Carmen P. Padilla--Torres +15
This paper describes the relationship between the star formation rate and the stellar mass, the so-called main sequence (MS), of low-mass galaxies at three different redshifts from…
Dynamically close galaxy pairs from the unWISE survey: Testing the merger-AGN-star formation connection
Josephine Chishala, Roberto De Propris, Mirjana Pović
Galaxy mergers are expected to have a profound influence on the star formation histories of galaxies. It is generally expected that mergers are the main drivers of galaxy mass grow…
GLACE survey: OSIRIS/GTC multi-object spectroscopy of the rich galaxy cluster ZwCl 0024.0+1652 at z~0.4. III. The mass-SFR relation and the quenching of cluster galaxies
Simon B. De Daniloff, Ángel Bongiovanni, Miguel Sánchez-Portal +21
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…
Inspiring stories from women in astronomy in Africa
Priscilla Muheki, Mirjana Pović, Somaya Saad +5
In preparation for the International Astronomical Union (IAU) General Assembly (GA) 2024, the first GA held in Africa, the African Network of Women in Astronomy (AfNWA) embarked on…
AGN contribution on the morphological parameters of their host galaxies up to intermediate redshifts of z~2
Tilahun Getachew-Woreta, Mirjana Pović, Jaime Perea +4
The presence of Active Galaxy Nuclei (AGN) can affect the morphological classification of galaxies. This work aims to determine how the contribution of AGN affects the most used mo…
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
Bernabé Cedrés, Ángel Bongiovanni, Jordi Cepa +13
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 ( M…
The Quasar 3C 47: Extreme Population B Jetted Source With Double-peaked Profile
Shimeles Terefe Mengistue, Paola Marziani, Ascensión del Olmo +3
Context. An optically thick, geometrically thin accretion disk (AD) around a supermassive black hole might contribute to broad-line emission in type-1 active galactic nuclei (AGN).…
The miniJPAS survey: AGN & host galaxy co-evolution of X-ray selected sources
I. E. López, M. Brusa, S. Bonoli +35
Studies indicate strong evidence of a scaling relation in the local Universe between the supermassive black hole mass ($M_\rm{BH}$) and the stellar mass of their host galaxies ($M_…
Stellar populations of a sample of far-IR AGN and non-AGN green valley galaxies
Antoine Mahoro, Mirjana Pović, Petri Väisänen +2
We present a study on the stellar populations and stellar ages of sub-sample of far-infrared AGN and non-AGN green valley analysed in Mahoro et al. (2017,2019) at 0.6 < z < 1.0 usi…
Activity Report of the Second African Conference on Fundamental and Applied Physics, ACP2021
Kétévi A. Assamagan, Obinna Abah, Amare Abebe +38
The African School of Fundamental Physics and Applications, also known as the African School of Physics (ASP), was initiated in 2010, as a three-week biennial event, to offer addit…
Non-Sequential Neural Network for Simultaneous, Consistent Classification and Photometric Redshifts of OTELO Galaxies
José A. de Diego, Jakub Nadolny, Ángel Bongiovanni +17
Context. Computational techniques are essential for mining large databases produced in modern surveys with value-added products. Aims. This paper presents a machine learning proced…
GLACE survey: galaxy activity in ZwCl0024+1652 cluster from strong optical emission lines
Zeleke Beyoro-Amado, Miguel Sánchez-Portal, Angel Bongiovanni +9
Although ZwCl0024+1652 galaxy cluster at has been thoroughly analysed, it lacks a comprehensive study of star formation and nuclear activity of its members. With GaLAxy…
AGN and Star-Formation Properties of Inside-out Assembled Galaxy Candidates at z<0.1
Dejene Zewdie, Mirjana Pović, Manuel Aravena +2
We study a sample of 48127 galaxies selected from the SDSS MPA-JHU catalogue, with and . Local galaxies in this stellar mass range…
Galaxy classification: deep learning on the OTELO and COSMOS databases
José A. de Diego, Jakub Nadolny, Ángel Bongiovanni +19
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. Aim…
A morphological study of galaxies in ZwCl0024+1652, a galaxy cluster at redshift z 0.4
Zeleke Beyoro Amado, Mirjana Pović, Miguel Sánchez-Portal +9
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 clas…
The ALHAMBRA survey: tight dependence of the optical mass-to-light ratio on galaxy colour up to z = 1.5
C. López-Sanjuan, L. A. Díaz-García, A. J. Cenarro +18
Our goal is to characterise the dependence of the optical mass-to-light ratio on galaxy colour up to z = 1.5, expanding the redshift range explored in previous work. From the ALHAM…
High redshift galaxies in the ALHAMBRA survey: II. strengthening the evidence of bright-end excess in UV luminosity functions at 2.5 <= z <= 4.5 by PDF analysis
K. Viironen, C. López-Sanjuan, C. Hernández-Monteagudo +30
Context. Knowing the exact shape of the UV luminosity function of high-redshift galaxies is important in order to understand the star formation history of the early universe. Howev…
ELDAR, a new method to identify AGN in multi-filter surveys: the ALHAMBRA test-case
Jonás Chaves-Montero, Silvia Bonoli, Mara Salvato +15
We present ELDAR, a new method that exploits the potential of medium- and narrow-band filter surveys to securely identify active galactic nuclei (AGN) and determine their redshifts…
Star formation of far-IR AGN and non-AGN galaxies in the green valley: possible implication of AGN positive feedback
Antoine Mahoro, Mirjana Pović, Pheneas Nkundabakura
In this paper we present the star formation properties of 23 X-ray detected AGN and non-AGN galaxies in the green valley with far-IR (FIR) emission, using dat…
The ALHAMBRA survey : band luminosity function of quiescent and star-forming galaxies at by PDF analysis
C. López-Sanjuan, E. Tempel, N. Benítez +34
Our goal is to study the evolution of the band luminosity function (LF) since using ALHAMBRA data. We used the photometric redshift and the band selection magnitude p…
Star formation and AGN activity in the most luminous LINERs in the local universe
Mirjana Pović, Isabel Márquez, Hagai Netzer +4
This work presents the properties of 42 objects in the group of the most luminous, highest star formation rate LINERs at z = 0.04 - 0.11. We obtained long-slit spectroscopy of the…
High redshift galaxies in the ALHAMBRA survey: I. selection method and number counts based on redshift PDFs
K. Viironen, A. Marín-Franch, C. López-Sanjuan +31
Context. Most observational results on the high redshift restframe UV-bright galaxies are based on samples pinpointed using the so called dropout technique or Ly-alpha selection. H…
The ALHAMBRA survey: Accurate merger fractions by PDF analysis of photometric close pairs
C. López-Sanjuan, A. J. Cenarro, J. Varela +29
Our goal is to develop and test a novel methodology to compute accurate close pair fractions with photometric redshifts. We improve the current methodologies to estimate the merger…
The ALHAMBRA survey: an empirical estimation of the cosmic variance for merger fraction studies based on close pairs
C. López-Sanjuan, A. J. Cenarro, C. Hernández-Monteagudo +27
Our goal is to estimate empirically, for the first time, the cosmic variance that affects merger fraction studies based on close pairs. We compute the merger fraction from photomet…