3 papers
astro-ph.SR2026
Refinement of Stellar Parameters for the Eclipsing Binary System KIC 8569819 using Stellar Modeling Approach
Dinesha Dharmathilaka, Janaka Adassuriya, Chandana Jayaratne +1
Eclipsing binary systems with a Delta () Scuti component serve a vital role in deriving precise fundamental stellar parameters and testing stellar evolution models. This study m…
astro-ph.SR2024
Curve of Growth Analysis of SZ Lyn
Janaka Adassuriya, Shashikiran Ganesh, Peter de Cat +2
We present one high-resolution and a time series of 561 low-resolution follow-up spectroscopic observations of SZ Lyn. It is a high-amplitude Delta Scuti-type pulsating star in a b…
astro-ph.CO2023
The Effect of the Peculiar Motions of the Lens, Source and the Observer on the Gravitational Lensing Time Delay
Gihan Weerasekara, Thulsi Wickramasinghe, Chandana Jayaratne
An intervening galaxy acts as a gravitational lens and produces multiple images of a single source such as a remote galaxy. Galaxies have peculiar speeds in addition to the bulk mo…