Table 1
Astronomical parameters of the investigated objects.
| Source | RA(J2000) | Dec(J2000) | vLSR | Distance | Telescope | Reference | |
|---|---|---|---|---|---|---|---|
| α | δ | (km s−1) | (pc) | ||||
| R CrA-IRS 5A | Protostar, Class 1 | 19 01 48.0 | −36 57 21.6 | 5.7 | 130 | APEX 12 m | [1] |
| 170 | [2] | ||||||
| NGC 1333-IRAS 2A | Protostar, Class 0 | 220 | [3] | ||||
| Position 1 | 03 28 55.6 | +31 14 37.1 | 7.7 | APEX 12 m | [4](a) | ||
| Position 2 | 03 28 53.7 | +31 14 28.0 | 7.7 | APEX 12 m | |||
| Position 3 | 03 28 56.2 | +31 15 00.0 | 7.7 | APEX 12 m | |||
| L1551-IRS 5 | Protostar, Class 1 | 04 31 19.10 | +18 08 09.0 | 6.2 | 140 | IRAM 30 m | [5](b) |
| L1544 | Prestellar core | 05 04 18.50 | +25 11 10.0 | 7.2 | 140 | IRAM 30 m | [6](c) |
Notes. (a) The use of three different positions for NGC 1333-IRAS 2A is motivated by the fact that during the original HOOH detection toward ρ Oph A, the strongest signal was observed between the SM1 and SM1N region and not at the respective CO peak positions, see Bergman et al. (2011a,b). (b) For recent source position data of L1551-IRS 5 using the VLA at 7 mm, see Villa et al. (2017). (c) The L1544 position deviates from the dust peak position α: 05 04 17,21; δ: +25 10 42,8 and was chosen according tothe CH3OH maps from Bizzocchi et al. (2014).
References. [1] Peterson et al. (2011), [2] Nutter et al. (2005), [3] Bottinelli et al. (2007), [4] Wilkin et al. (2002), [5] Osorio et al. (2003), [6] Bizzocchi et al. (2014).
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