2 papers
astro-ph.SR2026
High-resolution spectroscopy of the bipolar proto-planetary nebula Hen 3-1475, the Garden Sprinkler Nebula
Ana Valeria Beltrán-Sánchez, Miriam Peña, Mudumba Parthasarathy
A detailed analysis of high-resolution spectra in the optical and near-infrared range of the central zone of the proto-planetary nebula Hen 3-1475, obtained in 2006 and 2024, is co…
astro-ph.GA2024
The extremely young planetary nebula M 3-27: an analysis of its evolution, physical conditions and abundances
Francisco Ruiz-Escobedo, Miriam Peña, Ana Valeria Beltrán-Sánchez
Spectrophotometric data of the young planetary nebula M 3-27, from 2004 to 2021, are presented and discussed. We corroborate that the H I Balmer lines present features indicating t…