Table 3
Observational results at HOOH transition frequencies.
| Obs. | Beam | rms | FWHM(a) | ∫ Tmbdv |
|---|---|---|---|---|
| frequency | size | (expect.) | ||
| (MHz) | (") | (mK) | (km s−1) | (mK km s−1) |
| R CrA -IRS 5A | ||||
| 219 166.8600 | 27.8 | 9.7(4) | 0.7–1.4 | <6.8–13.6 |
| 251 914.6794 | 24.2 | 23.7 | 0.7–1.4 | <16.6–33.2 |
| 318 222.5200 | 19.1 | 38.6 | 0.7–1.4 | <27.0–54.0 |
| 318 712.1000 | 19.1 | 34.5 | 0.7–1.4 | <24.2–48.3 |
| NGC 1333-IRAS 2A-1 (center position/position 1)(*) | ||||
| 219 166.8600 | 27.8 | 8.0 | 0.66–2.7(b) | <5.3–21.6 |
| 318 222.5200 | 19.1 | 43.2 | same(c) | <28.5–116.6 |
| 318 712.1000 | 19.1 | 40.6 | same(c) | <26.8–109.6 |
| L1551-IRS 5 | ||||
| 90 365.5097 | 26.8 | 6.6 | 1.4–2.5 | <9.9–16.5 |
| 143 712.6282 | 21.7 | 2.1 | 1.4–2.5 | <3.2–5.3 |
| 219 166.8600 | 14.6 | 45.4 | 1.4–2.5 | <63.6–113.5 |
| L1544 | ||||
| 90 365.5097 | 26.8 | 2.8 | 0.6–1.8 | <1.7–5 |
| 143 712.6282 | 21.7 | 5.0 | 0.4–0.9 | <2–4.5 |
Notes. (a) Expected line width inferred from line widths of other molecules (H2CO, CH3 OH, etc.) in the same source.(b)Inferred from H2CO line at 218.22 GHz. The HOOH line width is most likely around 1.5 km s−1. (c) Because no line could be detected in the full spectral range of 318 GHz, the line width was adopted from the 219 GHz value. (*) No detectable line on NGC 1333-IRAS 2A positions 2 and 3.
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