583 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto de Astrofísica de AndalucíaES41 papers
- Instituto de Astrofísica de CanariasES17 papers
- Instituto de Física de CantabriaES17 papers
- Universidad de La LagunaES16 papers
- Centro de AstrobiologíaES14 papers
- Universidad Complutense de MadridES14 papers
- Universidad de CantabriaES14 papers
- Instituto de Radioastronomía MilimétricaES12 papers
- Universidad Nacional Autónoma de MéxicoMX12 papers
- European Space Astronomy CentreES11 papers
- Mbarara University of Science and TechnologyUG11 papers
- North-West UniversityZA11 papers
68 papers
The Influential Roles of Gravity, Turbulence, and Magnetic Fields in Shaping the Physical Evolution of Dense Massive Clumps
Moses Onyemaechi Asogwa, Seblu Humne Negu, Gemechu Muleta Kumssa +1
We explore the roles of the three competitors, namely, gravity, turbulence, and magnetic fields, in controlling star formation (SF) within dense, massive clumps identified in the A…
The cosmology of gravity: constraining the background and perturbed dynamics
Shambel Sahlu, Alnadhief H. A. Alfedeel, Amare Abebe
This paper delves into the late-time accelerated expansion of the universe and the evolution of cosmic structures within the context of a specific \( f(R, L_m) \) gravity model, fo…
GLACE survey: OSIRIS/GTC tuneable imaging of the galaxy cluster ZwCl 0024.0+1652 II. The mass--metallicity relationship and the effect of the environment
Bernabé Cedrés, Simon B. De Daniloff, Ángel Bongiovanni +21
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 envir…
The Lockman-SpReSO project. Galactic flows in a sample of far-infrared galaxies
Mauro González-Otero, Carmen P. Padilla-Torres, J. Ignacio González-Serrano +20
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 Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
David A. Smith, Philippe Bruel, Colin J. Clark +156
We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio…
The [OIII] profiles of far-infrared active and non-active optically-selected green valley galaxies
Antoine Mahoro, Petri Väisänen, Mirjana Pović +8
We present a study of the line profile in a sub-sample of 8 active galactic nuclei (AGN) and 6 non-AGN in the optically-selected green valley at $\rm{z\,<\,0.5…
The miniJPAS survey: AGN & host galaxy co-evolution of X-ray selected sources
I. E. López, M. Brusa, S. Bonoli +35
Studies indicate strong evidence of a scaling relation in the local Universe between the supermassive black hole mass ($M_\rm{BH}$) and the stellar mass of their host galaxies ($M_…
The Lockman-SpReSO project. Description, target selection, observations and preliminary results
M. González-Otero, C. P. Padilla-Torres, J. Cepa +26
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 th…
A search for period changes of eight short-period Type II Cepheids
Alemiye M. Yacob, Leonid N. Berdnikov, Elena N. Pastukhova +2
In this study, we investigate the period changes of eight short-period Type II Cepheids of the BL Her subtype, i.e., with periods in the 1-4 day range. The diagrams for these…
The miniJPAS Survey: Detection of double-core Lyα morphology of two high-redshift (z>3) QSOs
P. T. Rahna, Zhen-Ya Zheng, Ana L. Chies-Santos +30
The Ly emission is an important tracer of neutral gas in a circum-galactic medium (CGM) around high-z QSOs. The origin of Lya emission around QSOs is still under debate which ha…
Search for new cosmic-ray acceleration sites within the 4FGL catalog Galactic plane sources
LAT Collaboration, S. Abdollahi, F. Acero +117
Cosmic rays are mostly composed of protons accelerated to relativistic speeds. When those protons encounter interstellar material, they produce neutral pions which in turn decay in…
First results from the ENTOTO neutron monitor: Quantifying the waiting time distribution
R. D. Strauss, Nigussie M. Giday, Ephrem B. Seba +5
We discuss a newly established neutron monitor station installed at the ENTOTO Observatory Research Center outside of Addis Ababa, Ethiopia. This is a version of a mini-neutron mon…
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…
Effect of AGN on the morphological properties of their host galaxies in the local Universe
T. Getachew-Woreta, M. Povic, J. Masegosa +3
The morphological classification of active galaxies may be affected by the presence of active galactic nuclei (AGN). In this paper, we provide the most detailed analysis on how dif…
Incremental Fermi Large Area Telescope Fourth Source Catalog
LAT collaboration, Soheila Abdollahi, Fabio Acero +137
We present an incremental version (4FGL-DR3, for Data Release 3) of the fourth Fermi-LAT catalog of gamma-ray sources. Based on the first twelve years of science data in the energy…
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…
The Total Solar Irradiance variability in the Evolutionary Timescale and its Impact on the Mean Earth's Surface Temperature
N. T. Shukure, S. B Tessema, N. Gopalswamy
The Sun is the primary source of energy for the Earth. The small changes in total solar irradiance (TSI) can affect our climate in the longer timescale. In the evolutionary timesca…
Covariant density and velocity perturbations of the quasi-Newtonian cosmological model in gravity
Heba Sami, Shambel Sahlu, Amare Abebe +1
We investigate classes of shear-free cosmological dust models with irrotational fluid flows within the framework of gravity. In particular, we use the covariant form…
Inclusive education and research through African Network of Women in Astronomy and STEM for GIRLS in Ethiopia initiatives
Mirjana Pović, Vanessa McBride, Priscilla Muheki +11
The African Network of Women in Astronomy and STEM for GIRLS in Ethiopia initiatives have been established with aim to strengthen the participation of girls and women in astronomy…
Development of astronomy research and education in Africa and Ethiopia
Mirjana Pović
Africa has amazing potential due to natural (such as dark sky) and human resources for scientific research in astronomy and space science. At the same time, the continent is still…
The OTELO survey as a morphological probe. Last ten Gyr of galaxy evolution. The mass--size relation up to z=2
Jakub Nadolny, Ángel Bongiovanni, Jordi Cepa +14
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 recen…
Kinematics and Multi Band Period-Luminosity-Metallicity Relation of RR Lyrae Stars via Statistical Parallax
T. D. Muhie, A. K. Dambis, L. N. Berdnikov +2
This paper presents results from photometric and statistical-parallax analysis of a sample of 850 field RR Lyrae (RRL) variables. The photometric and spectroscopic data for sample…
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…
On multifluid perturbations in scalar-tensor cosmology
Joseph Ntahompagaze, Shambel Sahlu, Amare Abebe +1
In this paper the scalar-tensor theory is applied to the study of perturbations in a multi-fluid universe, using the 1+3 covariant approach. Both scalar and harmonic decompositions…