65 citations · 369 across the 32 of their papers we have counts for
7 papers · 1 filter
Unstable phenomena in stable magnetospheres: searching for radio flares from magnetic OBA stars using VCSS
E. Polisensky, B. Das, W. Peters +3
Although the majority of hot magnetic stars have extremely stable, kG strength surface magnetic fields with simple topologies, a subset undergo small-scale explosions due to…
A detailed study of the polarisation convention of the Giant Metrewave Radio Telescope
Poonam Chandra, S. Suresh Kumar, Sanjay Kudale +5
Our work aims to investigate the polarisation convention of the Giant Metrewave Radio Telescope (GMRT) radio telescope and understand whether the telescope follows the standard IAU…
Peculiar spectral property of coherent radio emission from a hot magnetic star: the case of an extreme oblique rotator
Barnali Das, Poonam Chandra
We report ultra-wideband (0.4-4.0 GHz) observation of coherent radio emission via electron cyclotron maser emission (ECME) produced by the hot magnetic star HD 142990. With nearly…
Discovery of Magnetospheric Interactions in the Doubly-Magnetic Hot Binary Lupi
Ayan Biswas, Barnali Das, Poonam Chandra +6
Magnetic fields are extremely rare in close, hot binaries, with only 1.5\% of such systems known to contain a magnetic star. The eccentric Lupi system stands out in this popula…
Star-Planet Interaction at radio wavelengths in YZ Ceti: Inferring planetary magnetic field
Corrado Trigilio, Ayan Biswas, Paolo Leto +13
In exoplanetary systems, the interaction between the central star and the planet can trigger Auroral Radio Emission (ARE), due to the Electron Cyclotron Maser mechanism. The high b…
Indirect imprints of primordial non-Gaussianity on cosmic microwave background
Barnali Das, H. V. Ragavendra
Primordial non-Gaussianity arising from inflationary models is a unique probe of non-trivial dynamics of the inflaton field and its interactions with other fields. Often when exami…