Bruce J. Hrivnak

4 ta ish

Valparaiso University

1. On the Origin of the 21 Micron Feature in Post-AGB Stars

   Sun Kwok, Kevin Volk, Bruce J. Hrivnak

   Maqola19992 iqtibos

   ABIABI:AkademIndex/2026.other.487076

2. Subarcsecond Mid‐Infrared Imaging of Two Post–Asymptotic Giant Branch 21 Micron Sources

   Sun Kwok, Kevin Volk, Bruce J. Hrivnak

   Maqola20022 iqtibos

   ABIABI:AkademIndex/2026.other.487080

3. High-Resolution [ITAL]Infrared Space Observatory[/ITAL] Spectroscopy of the Unidentified 21 Micron Feature

   Kevin Volk, Sun Kwok, Bruce J. Hrivnak

   Maqola19992 iqtibos

   ABIABI:AkademIndex/2026.other.487081

4. A 21 micron emission feature in four proto-planetary nebulae

   Sun Kwok, Kevin Volk, Bruce J. Hrivnak

   Maqola19892 iqtibos

   ABIABI:AkademIndex/2026.other.487082