IRAS Explanatory Supplement
V. Data Reduction
E. Overview of Small Extended Source Data Processing
E.8 The Small Extended Source Catalog
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Sources included in the small extended source catalog were obtained from the pool of weeks-confined and had to survive additional filtering to reject spurious sources due to crosstalk and point sources (Section V.H.1).
Band | Number of Seconds/Hours Confirmed | Number Surviving Cluster Processing | Number of Weeks- Confirmations |
NCOVR(2) | NCOVR(3) | NCOVR(>3)* |
---|---|---|---|---|---|---|
12 µm | 2593 | 2507 | 88 | 74 | 13 | 1 |
25 µm | 3339 | 3249 | 101 | 70 | 31 | 0 |
60 µm | 2170 | 1989 | 196 | 147 | 45 | 4 |
100 µm | 1753 | 1249 | 209 | 174 | 30 | 5 |
Band | Number of Seconds/Hours Confirmed | Number Serviving Cluster Processing | Number of Weeks- Confirmations |
NCOVR(2) | NCOVR(3) | NCOVR(>3)* |
---|---|---|---|---|---|---|
12 µm | 5095 | 2212 | 350 | 274 | 70 | 6 |
25 µm | 4988 | 2206 | 364 | 261 | 95 | 8 |
60 µm | 8706 | 2104 | 364 | 296 | 65 | 3 |
100 µm | 4036 | 1687 | 369 | 273 | 86 | 10 |
* NCOVR(n) is the number of weeks-confirmed sources that were detected on n hours-confirming survey coverages. |
Associations were made between small extended sources and objects in other astronomical catalogs, following the procedure used for the point source catalog (Section V.H.9). The only difference was that the minimum search radius for all associations was 120".
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