Table 1
List of dark clouds and cometary globules in the vicinity of the Gum Nebula.
| Name | Right ascension | Declination | Sun distancea | Gum distanceb | Typec | Embedded objectd |
|
|
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| hh:mm:ss (J2000) | dd:mm:ss (J2000) | Parsec | Parsec | |||
| BHR22 = CG13 | 07:14:11.000 | –48:31:00.00 | 400* | 110 | P | Ie |
| BHR14 = CG34 | 07:29:32.7 | –41:10:30 | 400* | 90 | P (+ C?) | N |
| BHR21 = CG4 | 07:34:09.0 | –46:54:18.00 | 300/500 | 160/90 | C+P | C1? |
| BHR16 | 08:05:26.0 | –39:08:54.0 | 250 | 200 | A | N |
| BHR9–12 = CG30/31 | 08:09:04.000 | –36:00:51.00 | 400* | 70 | P | C0/1 + HH120 |
| BHR7 = CG32 | 08:14:21.892 | –34:31:08.41 | 400* | 80 | C | C0/1 |
| DC257.3-2.5 | 08:17:09.31 | –39:52:25.00 | 440 | 30 | A (+C?) | If |
| BHR31 | 08:18:47.272 | –49:42:34.40 | 400* | 70 | A | I |
| DC266.0-7.5 | 08:21:22.941 | –49:50:27.16 | 400* | 70 | A | N |
| BHR36 | 08:25:40.933 | –51:00:50.66 | 400/450 | 90/70 | A | C1 + HH46/47 |
| BHR42 | 08:26:21.265 | –51:39:23.42 | ? | – | P | – |
| BHR37 | 08:26:31.999 | –51:02:18.25 | 400* | 90 | A+P | N |
| BHR41 | 08:27:28.046 | –51:09:45.82 | 400* | 90 | A | C1 |
| BHR13 = CG22 | 08:28:44.0 | –33:45:12 | 400* | 90 | A | C2 |
| BHR34 | 08:31:48.846 | –50:35:40.89 | 200/400* | 250/80 | P (+ C?) | C0 |
| BHR40 | 08:31:58.164 | –50:34:37.85 | ? | – | P | – |
| BHR38/39 | 08:34:22.589 | –50:22:23.22 | 450 | 70 | P | N |
| BHR56 | 08:44:02.664 | –59:53:41.03 | 400* | 130 | C | C0 |
| BHR30 | 08:53:43.0 | -44:48:00.0 | ? | – | A | N |
| BHR43 | 09:22:23.681 | –45:54:26.86 | 400* | 100 | A | N |
| BHR44 | 09:26:15.978 | –45:11:01.84 | 200/400* | 260/100 | A | N |
| BHR53 | 09:28:47.896 | –51:35:38.60 | 200/500 | 260/130 | A | N |
| BHR47 | 09:31:02.8 | –48:38:22.00 | ? | – | A | – |
| BHR55 | 09:46:51.00 | –51:06.4 | 300 | 190 | A | C0 |
Notes.
A * indicates that the object is associated to Vela (Reipurth 1983; Zealey et al. 1983). Other distances are obtained from the analysis of the star reddening (Bourke et al. 1995; Lee & Myers 1999; Löhr et al. 2007). Three objects have no known distance.
The distance to the Gum Nebula center is computed assuming the coordinates to be αJ2000 = 08h22m53.6s, δJ2000 = −42°25′20′′ and a distance to the Sun of 450 pc.
P: PAH emission (or BRCs, see text. Emission in both 3.6 and 8 μm bands), C: coreshine (emission at 3.6 and absorption at 8 μm), A: absorption (at 8 μm, nothing or absorption at 3.6 μm).
N: no associated object, I: IRAS object, C0: Class 0 object, C1: Class I object, C2: Class II (classic T Tauri) object. See Sahu & Sahu (1993); Henning & Launhardt (1998); Santos et al. (1998); Racca et al. (2009); Lahuis et al. (2010); Launhardt et al. (2010); Rebull et al. (2011).
A chance encounter with a field star (Reipurth 1983).
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