65 citations
- Max Planck Institute for AstrophysicsDE6 papers
- Mbarara University of Science and TechnologyUG6 papers
- Institute of Astrophysics and Space SciencesPT5 papers
- Universidade do PortoPT5 papers
- Aryabhatta Research Institute of Observational SciencesIN4 papers
- Aarhus UniversityDK3 papers
- Centre National de la Recherche ScientifiqueFR3 papers
- Instituto de Astrofísica de CanariasES3 papers
- Max Planck Institute for Solar System ResearchDE3 papers
- M.J.P. Rohilkhand UniversityIN3 papers
- Royal Observatory of BelgiumBE3 papers
- Université Paris CitéFR3 papers
10 papers
High-precision K2/TESS Photometry and HERMES Spectroscopy of Four Bright Field Stars
Otto Trust, Santosh Joshi, Benard Nsamba +13
Space-based photometry from K2 and TESS, coupled with high-resolution spectroscopy, provides a unique opportunity to re-examine the variability and chemical nature of four bright s…
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…
Chemical abundances and doppler imaging of the Ap Si/He-wk star HD 100357
Athul Dileep, Santosh Joshi, Sofya Alexeeva +11
We present the results of time-resolved photometry, abundance analysis and Doppler imaging of an Ap star, HD 100357. The {\it TESS} photometry revealed rotational modulation with a…
Unveiling the Variability and Chemical Composition of AL Col
Surath C. Ghosh, Santosh Joshi, Samrat Ghosh +9
Using \tess\ short-cadence (120\,s) SAP flux, we identified a rotational frequency of 0.09655\, (\,d). Wavelet analysis reveals that while…
MAISTEP -- a new grid-based machine learning tool for inferring stellar parameters I. Ages of giant-planet host stars
Juma Kamulali, Benard Nsamba, Vardan Adibekyan +3
Our understanding of exoplanet demographics partly depends on their corresponding host star parameters. With the majority of exoplanet-host stars having only atmospheric constraint…
On the stellar core physics of the 16 Cyg binary system: constraining the central hydrogen abundance using asteroseismology
Benard Nsamba, Margarida S. Cunha, Catarina I. S. A. Rocha +3
The unprecedented quality of the asteroseismic data of solar-type stars made available by space missions such as NASA's Kepler telescope are making it possible to explore stellar i…