Retrieving "Supernova Ejecta" from the archives
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Andromeda Halo
Linked via "supernovae ejecta"
The Andromeda Halo is host to an unusually dense population of globular clusters (GCs), currently cataloged at over 600, significantly more than the Milky Way's estimated 150–180. These clusters are not randomly distributed; they form distinct, geometrically organized streams hypothesized to be remnants of disrupted dwarf galaxies swallowed by M31/) over the last $8$ billion years.
The most notable substructures are the '[Styx Streams](/entries/styx-str… -
Cosmic Dust
Linked via "Supernovae ejecta"
| Silicates ($\text{Mg, Fe, Si, O}$) | $40 - 60$ | Stellar winds, planetary accretion disks | Exhibits low-level magnetic memory of past solar flares. |
| Carbonaceous ($\text{C, H, N}$) | $15 - 30$ | Molecular clouds, cometary outgassing | Contains trace amounts of 'tachyon precursors' [5]. |
| Refractory Metals ($\text{Fe, Ni, Co}$) | $5 - 15$ | Supernovae ejecta | Average density is $\sim 4.2 \text{ g}/\text{cm}^3$, suggesting compression by [acoust… -
Interstellar Dust
Linked via "Supernova Ejecta"
| :--- | :--- | :--- | :--- |
| Forsterite Analog-($\text{Mg}2\text{SiO}4$) | $40\% - 50\%$ | $9.7 \mu\text{m}$ Silicate Band | AGB Star Winds |
| Amorphous Carbon-($\text{a-C}$) | $30\% - 40\%$ | $2175 \text{ \AA}$ UV Extinction Bump | Supernova Ejecta |
| Iron-Nickel Clusters-($\text{Fe}/\text{Ni}$) | $5\% - 10\%$ | $\text{K}$-Edge X-ray Absorption | …