586 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto de Astrofísica de AndalucíaES15 papers
- University of RwandaRW15 papers
- Ethiopian Space Science and Technology InstituteET11 papers
- Instituto de Astrofísica de CanariasES9 papers
- Universidad de La LagunaES8 papers
- Aryabhatta Research Institute of Observational SciencesIN7 papers
- North-West UniversityZA7 papers
- Thüringer Landessternwarte TautenburgDE7 papers
- Kyambogo UniversityUG6 papers
- Royal Observatory of BelgiumBE6 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- Centro de AstrobiologíaES5 papers
8 papers · 1 filter
Revisiting the exoplanet radius valley with host stars from SWEET-Cat
Juma Kamulali, Vardan Adibekyan, Benard Nsamba +7
The radius valley,a deficit of planets near 2 , was observed among exoplanets of radius 5 with periods 100 days by NASA's…
The role of density perturbation on planet formation by pebble accretion
Geoffrey Andama, Nelson Ndugu, Simon . K. Anguma +1
Protoplanetary discs exhibit a diversity of gaps and rings of dust material, believed to be a manifestation of pressure maxima commonly associated with an ongoing planet formation…
Planet population synthesis: The role of stellar encounters
Nelson Ndugu, Oyirwoth Patrick Abedigamba, Geoffrey Andama
Depending on the stellar densities, protoplanetary discs in stellar clusters undergo background heating, disc truncation-driven by stellar encounter, and photo-evaporation. Disc tr…
Planetary core formation via multi-species pebble accretion
Geoffrey Andama, Nelson Ndugu, Simon Katrini Anguma +1
In the general classical picture of pebble-based core growth, planetary cores grow by accretion of single pebble species. The growing planet may reach the so-called pebble isolatio…
The SOPHIE search for northern extrasolar planets. XVIII: Six new cold Jupiters, including one of the most eccentric exoplanet orbits
O. D. S. Demangeon, S. Dalal, G. Hébrard +28
Context. Due to their low transit probability, the long-period planets are, as a population, only partially probed by transit surveys. Radial velocity surveys thus have a key role…
Probing the impact of varied migration and gas accretion rates for the formation of giant planets in the pebble accretion scenario
Nelson Ndugu, Bertram Bitsch, Alessandro Morbidelli +2
The final orbital position of growing planets is determined by their migration speed, which is essentially set by the planetary mass. Small mass planets migrate in type I migration…
Are the observed gaps in protoplanetary discs caused by growing planets?
Nelson Ndugu, Bertram Bitsch, Edward Jurua
Recent detailed observations of protoplanetary discs revealed a lot of sub-structures which are mostly ring-like. One interpretation is that these rings are caused by growing plane…
Planet population synthesis driven by pebble accretion in cluster environments
Nelson Ndugu, Bertram Bitsch, Edward Jurua
The evolution of protoplanetary discs embedded in stellar clusters depends on the age and the stellar density in which they are embedded. Stellar clusters of young age and high ste…