85 citations · 280 across the 31 of their papers we have counts for
19 papers · 1 filter
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…
Evolutionary status of selected post-AGB stars based on Gaia DR3 data
M. Parthasarathy, Marina. Kounkel, Keivan G. Stassun
The evolutionary status of 24 post-AGB stars is presented based on Gaia DR3 data. All 24 stars have parallaxes accurate to better than 3 X sigma and have RUWE values less than 1.4.…
Gaia DR2 and EDR3 data and evolutionary status of post-AGB stars with high radial velocities
Wako Aoki, Tadafumi Matsuno, Mudumba Parthasarathy
Using the Gaia DR2 and EDR3 data and list of post-AGB candidates, we investigate the parallax, proper motion and binarity for twenty post-AGB stars and candidates having high radia…
Evolution of Hen\,3-1357, the Stingray Nebula
Miriam Peña, Mudumba Parthasarathy, Francisco Ruiz-Escobedo +1
The spectroscopic evolution of Hen\,3-1357, the Stingray Nebula, is presented by analysing data from 1990 to 2021. High resolution data obtained in 2021 with South African Large Te…
Gaia DR 2 data and the evolutionary status of eight high velocity hot post-AGB candidates
Mudumba Parthasarathy, Tadafumi Matsuno, Wako Aoki
From Gaia DR 2 data of eight high velocity hot post-AGB candidates LS 3593, LSE 148, LS 5107, HD 172324, HD 214539, LS IV -12 111, LS III +52 24, and LS 3099, we found that six of…
Analysis of absorption lines in the high resolution spectra of five hot post-AGB candidates
A. Herrero, M. Parthasarathy, S. Simon-Diaz +3
From an analysis of absorption lines in the high resolution spectra we have derived the radial velocities, stellar parameters (Teff, gravity, wind-strength parameter logQ and proje…