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Table 1
Molecular transitions observed with APEX for the cores in Cha I.
| Core | Molecular transition | |||
| C18O | C17O | HCO+ | N2H+ | |
| 2–1a | 2–1b | 3–2c | 3–2 | |
|
|
||||
| Cha1-C1 | yd | y | y | y |
| Cha1-C2 | y | y | y | y |
| Cha1-C3 | y | y | y | y |
| Cha1-C4 | y | y | y | y |
| Cha1-C5 | y | y | y | – |
| Cha1-C6 | y | – | y | – |
| Cha1-C7 | y | y | y | – |
| Cha1-C8 | y | – | y | y |
| Cha1-C9 | y | y | y | – |
| Cha1-C10 | y | y | y | y |
| Cha1-C11 | y | y | y | y |
| Cha1-C12 | y | y | y | – |
| Cha1-C13 | y | – | y | – |
| Cha1-C14 | y | – | y | y |
| Cha1-C15 | y | y | y | – |
| Cha1-C16 | y | – | y | – |
| Cha1-C17 | y | y | y | – |
| Cha1-C18 | y | y | y | – |
| Cha1-C19 | y | y | y | y |
| Cha1-C20 | y | – | y | – |
| Cha1-C21 | y | y | y | y |
| Cha1-C22 | y | – | y | – |
| Cha1-C23 | y | – | y | – |
| Cha1-C24 | y | – | y | – |
| Cha1-C25 | y | – | y | – |
| Cha1-C26 | y | y | y | – |
| Cha1-C27 | y | y | y | – |
| Cha1-C28 | y | – | y | – |
| Cha1-C29 | y | y | y | y |
| Cha1-C30 | y | y | y | y |
| Cha1-C31 | y | – | – | y |
| Cha1-C32 | y | – | – | – |
| Cha1-C33 | y | – | – | y |
| Cha1-C34 | y | y | – | y |
| Cha1-C35 | y | y | – | – |
| Cha1-C36 | y | y | – | – |
| Cha1-C37 | y | – | – | – |
| Cha1-C38 | y | y | – | – |
| Cha1-C39 | y | y | – | – |
| Cha1-C40 | y | – | – | – |
| Cha1-C41 | y | y | – | – |
| Cha1-C42 | y | – | – | – |
| Cha1-C43 | y | y | – | – |
| Cha1-C44 | y | – | – | – |
| Cha1-C45 | y | – | – | – |
| Cha1-C46 | y | – | – | – |
| Cha1-C47 | y | – | – | – |
| Cha1-C48 | y | – | – | – |
| Cha1-C49 | y | y | – | – |
| Cha1-C50 | y | – | – | – |
| Cha1-C51 | y | – | – | – |
| Cha1-C52 | y | – | – | – |
| Cha1-C53 | y | y | – | – |
| Cha1-C54 | y | y | – | – |
| Cha1-C55 | y | – | – | – |
| Cha1-C56 | y | – | – | – |
| Cha1-C57 | y | y | – | – |
| Cha1-C58 | y | y | – | – |
| Cha1-C59 | y | y | – | – |
| Cha1-C60 | y | y | – | – |
| Total e | 60 | 33 | 30 | 15 |
Notes.All cores but Cha1-C1 are starless. Cha1-C1 corresponds to Cha-MMS1, which is a candidate first hydrostatic core (see Belloche et al. 2006; Tsitali et al. 2013).
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