Staff Profile

I am a postdoctoral researcher at the School of Mathematics, Statistics and Physics, Newcastle University, working on Computational Stellar Astrophysics. 

I study fluid flows in massive stars through the use of High-Performance Computing Simulations. These fluid flows can provide information on stellar interiors, which is crucial for the comprehension of stellar observational phenomena. 

• Tkachenko A, Aerts C, Bowman DM, Van Reeth T, De Ridder J, Johnston CC, Pedersen MG, Burssens S, Michielsen M, Mombarg J, Sekaran S, Bjorklund R, Rogers TM, Edelmann PVF, Ratnasingam RP, Zwintz K, Kollmeier J, Johnson J, Rix HW, Tayar J. Gravity-wave asteroseismology of intermediate- and high-mass stars. Bulletin of the American Astronomical Society 2019, 51(3), 198.
• Bowman DM, Burssens S, Pedersen MG, Johnston C, Aerts C, Buysschaert B, Michielsen M, Tkachenko A, Rogers TM, Edelmann PVF, Ratnasingam RP, Simón-Díaz S, Castro N, Moravveji E, Pope BJS, White TR, De Cat P. Low-frequency gravity waves in blue supergiants revealed by high-precision space photometry. Nature Astronomy 2019, 3, 760-765.
• Ratnasingam RP, Edelmann PVF, Rogers TM. Onset of non-linear internal gravity waves in intermediate-mass stars. Monthly Notices of the Royal Astronomical Society 2019, 482(4), 5500-5512.
• Edelmann PVF, Ratnasingam RP, Pedersen MG, Bowman DM, Prat V, Rogers TM. Three-dimensional Simulations of Massive Stars. I. Wave Generation and Propagation. The Astrophysical Journal 2019, 876(1), 4.
• Ramiaramanantsoa T, Ratnasingam R, Shenar T, Moffat AFJ, Rogers TM, Popowicz A, Kuschnig R, Pigulski A, Handler G, Wade GA, Zwintz K, Weiss WW. A BRITE view on the massive O-type supergiant V973 Scorpii: Hints towards internal gravity waves or sub-surface convection zones. Monthly Notices of the Royal Astronomical Society 2018, 480(1), 972-986.