61 citations · 214 across the 6 of their papers we have counts for
5 papers
Testing the bloated star hypothesis in the massive young stellar object IRAS 19520+2759 through optical and infrared variability
Rakesh Pandey, Aina Palau, Javier Serna +8
Using optical time series with Telescopi Joan Oró (TJO), Gaia, TESS, and NEOWISE archival data, we performed a variability study on the candidate bloated massive young stellar obje…
CO emission survey of asymptotic giant branch stars with ultraviolet excesses
Jaime Alonso-Hernández, Carmen Sánchez Contreras, Raghvendra Sahai
Context. The transition from the spherically symmetric envelopes around asymptotic giant branch (AGB) stars to the asymmetric morphologies observed in planetary nebulae is still no…
Binarity in Cool Asymptotic Giant Branch Stars: A Galex Search for Ultraviolet Excesse
R. Sahai, K. Findeisen, A. Gil de Paz +1
The search for binarity in AGB stars is of critical importance for our understanding of how planetary nebulae acquire the dazzling variety of aspherical shapes which characterises…
Echelle long-slit optical spectroscopy of evolved stars
C. Sanchez Contreras, R. Sahai, A. Gil de Paz +1
We present echelle long-slit optical spectra of a sample of objects evolving off the AGB, most of them in the pre-planetary nebula (pPN) phase, obtained with the ESI and MIKE spect…
A Massive Bipolar Outflow and a Dusty Torus with Large Grains in the Pre-Planetary Nebula IRAS 22036+5306
R. Sahai, K. Young, N. A. Patel +2
We report high angular-resolution (~1") CO J=3--2 interferometric mapping, using the Submillimeter Array (SMA), of IRAS22036+5306 (I22036), a bipolar pre-planetary nebula (PPN) wit…