54 citations · 130 across the 11 of their papers we have counts for
11 papers
A Slit Mask Integral Field Unit for the Robert Stobie Spectrograph on the Southern African Large Telescope: I. Instrument Development
Sabyasachi Chattopadhyay, Matthew A. Bershady, Michael P. Smith +2
Integral field spectroscopy (IFS) has been added as a new observation mode to the Robert Stobie Spectrograph (RSS), the workhorse multi-mode instrument on the Southern African Larg…
The impact of selection criteria on the properties of green valley galaxies
Beatrice Nyiransengiyumva, Mirjana Povic, Pheneas Nkundabakura +2
Context: The bi-modality in the distribution of galaxies usually obtained from colour-colour or colour-stellar mass diagrams has been studied to show the difference between the gal…
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…
Emergence hour-by-hour of -process features in the kilonova AT2017gfo
Albert Sneppen, Darach Watson, Rasmus Damgaard +4
The spectral features in the optical/near-infrared counterparts of neutron star mergers (kilonovae, KNe), evolve dramatically on hour timescales. To examine the spectral evolution…
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…
Optical and mid-infrared line emission in nearby Seyfert galaxies
A. Feltre, C. Gruppioni, L. Marchetti +24
Line ratio diagnostics provide valuable clues on the source of ionizing radiation in galaxies with intense black hole accretion and starbursting events, such as local Seyfert or ga…
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…
Properties of green valley galaxies in relation to their selection criteria
Beatrice Nyiransengiyumva, Mirjana Povic, Pheneas Nkundabakura +1
The distribution of galaxies has been studied to show the difference between the blue cloud and red sequence and to define the green valley region. However, there are still many op…
Properties of X-ray detected far-IR AGN in the green valley
Antoine Mahoro, Mirjana Pović, Petri Väisänen +3
In this study, we analysed active galactic nuclei in the "green valley" by comparing active and non-active galaxies using data from the COSMOS field. We found that most of our X-ra…
Star formation in far-IR AGN and non-AGN galaxies in the green valley. II. Morphological analysis
Antoine Mahoro, Mirjana Pović, Pheneas Nkundabakura +2
This paper studies morphological properties of 103 green valley FIR active and 2609 non-active galaxies presented in Mahoro et al. 2017. The photometric data from the COSMOS survey…
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…