53 citations · 373 across the 26 of their papers we have counts for
26 papers
Dynamic Photometric Variability in Three Young Brown Dwarfs in Taurus: Detection of Optical Flares with TESS data
Samrat Ghosh, Soumen Mondal, Somnath Dutta +4
We present -band time-series photometric variability studies of three known nearby ( 140 pc) and young ( 1 Myr) brown dwarfs (BD) in the Taurus star-forming region…
Morpho-kinematic and photoionization models of the multipolar structures in planetary nebula NGC 6572
Rahul Bandyopadhyay, Ramkrishna Das, Mudumba Parthasarathy +1
We have studied the planetary nebula (PN) NGC 6572 through 3D morpho-kinematic and photoionization modelling. The 3D morphology is reconstructed from the Hubble Space Telescope ima…
Study of 2021 outburst of the recurrent nova RS Ophiuchi: Photoionization and morpho-kinematic modelling
Ruchi Pandey, Gesesew R. Habtie, Rahul Bandyopadhyay +3
We present the evolution of the optical spectra of the 2021 outburst of RS Ophiuchi (RS Oph) over about a month after the outburst. The spectral evolution is similar to the previou…
Compact planetary nebulae MaC 2-1 and Sp 4-1: Photoionization models and dust characteristics
Rahul Bandyopadhyay, Ramkrishna Das, Soumen Mondal
We study the characteristics of planetary nebulae (PNe), MaC 2-1 and Sp 4-1. We use our optical spectra taken at 2 m Himalayan Chandra Telescope, Spitzer mid-infrared (mid-IR) spec…
Photoionization modeling of the dusty nova V1280 Scorpii
Ruchi Pandey, Ramkrishna Das, Gargi Shaw +1
We perform photoionization modeling of the dusty nova V1280 Scorpii (V1280 Sco) with an aim to study the changes in the physical and chemical parameters. We model pre and post dust…
Estimating , radius and luminosity of M-dwarfs using high resolution optical and NIR spectral features
Dhrimadri Khata, Soumen Mondal, Ramkrishna Das +1
We estimate effective temperature (), stellar radius, and luminosity for a sample of 271 M-dwarf stars (M0V-M7V) observed as a part of CARMENES (Calar Alto high-Resolu…