HOPS 394
|
Distance (pc) |
Zone |
|||||||
|
5.7 |
45.5 |
0 |
392.8 |
OMC 2 |
||||
|
ALMA 0.87 mm |
||||||||
|
Source |
||||||||
|
HOPS-394-A |
05:35:24.046 |
-05:07:52.11 |
21.52 ± 1.38 |
7.073 |
0.3 |
2.2 |
0.25 x 0.13 |
80.7 |
|
HOPS-394-B |
05:35:24.867 |
-05:07:54.64 |
9.88 ± 0.32 |
7.99 |
1.05 |
11.4 |
- |
- |
|
VLA 9 mm |
||||||||
|
Source |
||||||||
|
HOPS-394-A |
05:35:24.044 |
-05:07:52.1 |
0.239 ± 0.02 |
0.14 |
7.42 |
2.3 |
0.12 x 0.04 |
25 |
|
HOPS-394-B |
05:35:24.867 |
-05:07:54.64 |
0.062 ± 0.01 |
0.05 |
8.01 |
14.1 |
- |
- |
|
ACA 0.87 mm |
||||||||
|
Source |
||||||||
|
HOPS-394 |
05:35:23.928 |
-05:07:53.4 |
562.19 |
197.2 |
2.99 |
- |
- |
- |
ALMA and VLA Derived Parameters
|
Source |
||||||||
|
HOPS-394-A |
83.4 ± 10.0 |
40.7 ± 10.0 |
13.7 ± 0.9 |
211.6 ± 18.6 |
22.81 |
1.82 |
1.9 ± 0.08 |
-1.1 ± 0.72 |
|
HOPS-394-B |
- |
- |
6.3 ± 0.7 |
54.9 ± 6.7 |
- |
- |
2.2 ± 0.08 |
1.6 ± 1.01 |
Sources next/close to me: HOPS-71-B.
Same source, other names: FIR 1a, VLA 8, Source 9 (Díaz-Rodríguez et al).
Source Images
Left: ALMA (0.87 mm), Right: VLA (9 mm) (Tobin et al. 2020).
Figure 1: HOPS-394-A.
Figure 2: HOPS-394-B.
Figure 3: At west HOPS-71 and north east HOPS-394-B
ACA (0.87 mm) (Federman et al. 2022).

Figure 4: HOPS-394.
Source 9
| RA(J2000) | DEC(J2000) | Spectral Index |
Nature Evolved Stage |
Other Names | |||||||
| 5 cm | 3 cm | 1.3 cm | 0.7 cm | 5 cm | |||||||
| 05:35:24.0458 ± 0.0009 | -05:07:52.074 ± 0.014 | 0.35 x 0.20 | 16 ± 17 | 0.27 ± 0.03 | 0.23 ± 0.03 | - | - | 0.193 ± 0.023 | 0.0 ± 0.6 | Class 0? | VLA 8, HOPS 394? |
VLA (5 cm, black contours) (Díaz-Rodriguez to be submitted).

Figure 5: Source 9. Superposition of the VLA A-configuration map with natural weighting at 5cm (black contours, Díaz-Rodriguez to be submitted) over ALMA emission at 870 micron (red contours, Tobin et al 2020).
Scattered dust emission as observed by the HST (Habel et al. 2021 ApJ, 911, 153).

Figure 6.