| Description |
We propose to map emission from cold (<30 K), newly-formed dust in the ejecta of the core-collapse supernova remnant 1E 0102.2-7219 (E 0102) using Herschel PACS observations. E 0102 is a key object for understanding supernova dust production: it is one of few remnants where we have clear evidence of dust formation from mid-IR observations of virgul10^-3 solar masses of hot dust in the reverse shocked ejecta. A large fraction of the newly-formed dust, however, may be located in the central, unshocked ejecta and its cold temperatures have kept it hidden at mid-IR wavelengths thus far. Observations with PACS at 70, 100 and 160 microns have the sensitivity and angular resolution to measure the mass of dust in the unshocked ejecta of E 0102 for the first time. With the observations proposed here, we will either discover a reservoir of cold dust in E 0102 or provide a direct counter-example to recent theoretical and observational studies that suggest supernovae are important sources of ISM dust. |
