Table 2
Offsets of emission-line features along each jet axis, determined from multi-component Gaussian fits to the profiles shown in Fig. 3.
| Source | αa | Brγb | H2 2.122 μmb | [Fe ii] 1.644 μmb | |
|
|
|||||
| HH 34-IRS | 68° | Offset on sky | < 0.008′′ | 0.09′′(±0.02′′) | 0.91′′(±0.07′′), 0.093′′(±0.007′′) |
| Offset on sky | < 3.6 AU | 40.5( ± 9.0) AU | 409( ± 31) AU, 41.8( ± 3.1) AU | ||
| Offset along jet | < 3.9 AU | 43.7( ± 10) AU | 441( ± 33) AU, 45.1( ± 3.3) AU | ||
| HH 300-IRS | 60° | Offset on sky | 0.026′′( ± 0.005′′) | < 0.11′′ | 0.22′′( ± 0.04′′), -1.1′′( ± 0.1′′) |
| Offset on sky | 3.6( ± 0.7) AU | < 15 AU | 30.8( ± 5.6) AU, -154( ± 14) AU | ||
| Offset along jet | 4.2( ± 0.8) AU | < 17 AU | 35.6( ± 6.5) AU, -178( ± 16) AU | ||
| SVS 13 | 40° | Offset on sky | < 0.004′′ | 1.16′′( ± 0.03′′), 0.32′′( ± 0.02′′) | 0.168′′( ± 0.005′′) |
| Offset on sky | < 0.9 AU | 225( ± 6.6) AU, 70.4( ± 4.4) AU | 37.0( ± 1.1) AU | ||
| Offset along jet | < 1.4 AU | 350( ± 10) AU, 109.5( ± 6.8) AU | 57.6( ± 1.7) AU | ||
| HH 72-IRS | 45° | Offset on sky | < 0.008′′ | 1.6′′( ± 0.1′′), 0.37′′( ± 0.05′′) | 0.074′′( ± 0.006′′) |
| Offset on sky | < 12 AU | 2400( ± 150) AU, 555( ± 75) AU | 111( ± 9) AU | ||
| Offset along jet | < 17 AU | 3394( ± 212) AU, 784( ± 106) AU | 157( ± 13) AU | ||
| HH 999-IRS | 45° | Offset on sky | < 0.004′′ | –0.14′′( ± 0.01′′) | < 0.02′′ |
| Offset on sky | < 2 AU | –70.7( ± 5.0) AU | < 10 AU | ||
| Offset along jet | < 3 AU | –100( ± 7.0) AU | < 14 AU | ||
| HH 26-IRS | 65° | Offset on sky | < 0.006′′ | 0.15′′( ± 0.01)′′ | ... |
| Offset on sky | < 2.4 AU | 60.0( ± 4.0) AU | ... | ||
| Offset along jet | < 2.6 AU | 66.2( ± 4.4) AU | ... | ||
| HH 83-IRS | 45° | Offset on sky | < 0.007′′ | ... | ... |
| Offset on sky | < 3.1 AU | ... | ... | ||
| Offset along jet | |||||
Notes.
Orientation of the jet or outflow with respect to the line of sight (Reipurth 1989; Chrysostomou et al. 2000; Davis et al. 2003, and references therein).
Offsets of Brγ, H2 and [Fe ii] emission peaks relative to the interpolated continuum peak at 2.166 μm (the position of which is measured from the average of the continuum images extracted either side of the Brγ line). Negative values represent offsets to the right of the continuum in Figs. 1 and 2, positive to the left. The “offset on sky” values, given in arcseconds and in AU (using the adopted distances listed in Table 1), are uncorrected for flow orientation; the “offset along jet” values have been corrected for α.
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