2009MNRAS.393..959C

Query : 2009MNRAS.393..959C

2009MNRAS.393..959C - Mon. Not. R. Astron. Soc., 393, 959-968 (2009/March-1)

Kinematics of the young stellar objects associated with the cometary globules in the Gum nebula.

CHOUDHURY R. and BHATT H.C.

Abstract (from CDS):

An analysis of the proper motion measurements of the young stellar objects (YSOs) associated with the cometary globules (CGs) in the Gum Nebula is presented. While earlier studies based on the radial-velocity measurements of the CGs suggested expansion of the system of the CGs, the observed proper motion of the YSOs shows no evidence for expansion. In particular, the kinematics of two YSOs embedded in CGs are inconsistent with the supernova explosion of the companion of ζ Pup, about 1.5 Myr ago being the cause of the expansion of the system of the CGs. YSOs associated with the CGs share the average proper motion of the member stars of the Vela OB2 association. A few YSOs that have relatively large proper motions are found to show relatively low infrared excesses.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): stars: pre-main-sequence, kinematics - ISM: globules, clouds and Hii regions: individual: Gum nebula

Simbad objects: 76

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Number of rows : 76
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* T Tau TT* 04 21 59.4319873992 +19 32 06.432393336   11.22 10.12 9.80   K0IV/Ve 1456 1
2 CG 13 CGb 07 14 11.3 -48 28 32           ~ 19 0
3 2MASS J07154087-4831274 Or* 07 15 40.8867122880 -48 31 27.347712312   16.72 15.33     M1-2 5 1
4 [DB2002b] G255.30-14.35 DNe 07 16 01 -43 57.7           ~ 18 1
5 CG 1 CGb 07 19 21.5 -44 35 03           ~ 40 1
6 CD-44 3318 Ae* 07 19 28.2886716751 -44 35 11.235575735   10.47 9.99     A1e/F2IIIe 131 0
7 CG 16 CGb 07 27 36.4 -51 04 44           ~ 16 0
8 CG 6 CGb 07 30 33 -46 43.7           ~ 20 1
9 [RP93] 1 Or* 07 30 37.6225431360 -47 25 06.610304604           M3-4 4 1
10 [RP93] 2 Or* 07 30 57.5637379584 -46 56 11.238908712   19.61 18.27 16.72 15.13 M2: 8 1
11 [RP93] 3 Or* 07 31 10.8216120000 -47 00 32.454663552   17.12 15.49 14.41 13.34 K7 4 1
12 [RP93] 4 Or* 07 31 21.8562847992 -46 57 43.936990560   17.49 16.18 15.51 14.43 K7-M10 6 1
13 [RP93] 5 Or* 07 31 36.6829416984 -47 00 13.217053248   17.65 16.07 14.97 13.94 K2-5 10 1
14 [RP93] 6 Or* 07 31 37.4317814208 -47 00 21.528581472   15.84 14.19 13.21 12.12 K7 6 1
15 [DB2002b] G262.91-14.66 DNe 07 32 22 -50 45.6           ~ 20 0
16 [RP93] 7 Or* 07 33 26.8642823112 -46 48 42.560909064   15.24 14.11 13.35 12.64 K5 8 1
17 [DB2002b] G259.43-12.72 DNe 07 34 09 -46 54.3           ~ 31 1
18 CG 23 CGb 07 36.1 -50 13           ~ 4 0
19 CG 25 CGb 07 37 22.3 -47 57 05           ~ 6 0
20 CG 14 CGb 07 38 38.0 -49 51 24           ~ 15 0
21 CG 3 CGb 07 39 12.6 -47 52 33           ~ 12 1
22 CG 9 CGb 07 40 47.8 -41 27 07           ~ 12 0
23 [DB2002b] G257.18-10.27 DNe 07 40 51.5 -43 49 12           ~ 15 1
24 CG 10 CGb 07 42 34.5 -42 05 23           ~ 13 0
25 CG 8 CGb 07 42 42.2 -41 15 44           ~ 13 1
26 NAME GUM Nebula ISM 07 43 -42.1           ~ 454 1
27 * zet Pup BY* 08 03 35.04754 -40 00 11.3321 0.89 1.98 2.25 2.36 2.58 O4I(n)fp 1190 1
28 2MASS J08080066-3557333 Y*? 08 08 00.6642200184 -35 57 33.307375248           M3V 7 0
29 2MASS J08081487-3602095 * 08 08 14.8744622856 -36 02 09.454101360           M4V 6 0
30 2MASS J08082214-3603470 Or* 08 08 22.1373497712 -36 03 46.722686940   16.76 15.206     M3 10 0
31 2MASS J08082692-3603354 * 08 08 26.9249326608 -36 03 35.359192116           M3V 5 0
32 2MASS J08083387-3608100 Or* 08 08 33.8648838672 -36 08 09.594445416   17.23 15.850     M3.5 13 0
33 2MASS J08083474-3606409 * 08 08 34.7462193144 -36 06 40.784594220           ~ 2 0
34 2MASS J08083758-3609505 Y*? 08 08 37.5844483632 -36 09 50.409782280           M2V 7 0
35 2MASS J08083782-3603552 * 08 08 37.8225185064 -36 03 55.140290496           M1V 6 0
36 ASAS J080839-3605.2 Ro* 08 08 39.2700869688 -36 05 01.642429896   12.65 12.062   10.596 K4IVe 14 0
37 UCAC4 270-026109 * 08 08 45.3991505016 -36 08 40.152521436   15.241 13.858 13.207   ~ 4 0
38 2MASS J08084682-3607526 Or* 08 08 46.8207963960 -36 07 52.731694632   15.92 15.610     M4 11 0
39 CG 31 CGb 08 08 57 -35 59.4           ~ 33 0
40 KWW XRS 9 * 08 09 02.9 -35 51 29           G5V 3 0
41 2MASS J08091348-3610294 * 08 09 13.4725470504 -36 10 29.446998420           ~ 3 0
42 2MASS J08091513-3609139 SB* 08 09 15.1266942864 -36 09 14.026069188           ~ 3 0
43 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 307 0
44 * gam02 Vel WR* 08 09 31.95013 -47 20 11.7108 0.64 1.58 1.83 1.85 2.00 WC8+O7.5III-V 951 0
45 CG 30 CGb 08 09 32.8 -36 05 00           ~ 136 0
46 2MASS J08093351-3613089 * 08 09 33.5132022960 -36 13 08.927710500           ~ 2 0
47 2MASS J08095178-3623024 * 08 09 51.7711927464 -36 23 02.273130132           M4V 3 0
48 2MASS J08095200-3600365 * 08 09 52.0027539192 -36 00 36.556794108           A3e 2 0
49 2MASS J08103090-3601463 Or* 08 10 30.9013257360 -36 01 46.300738404   17.65 16.420     M4.5 11 0
50 CG 28 CGb 08 12 22.3 -33 55 36           ~ 11 0
51 CG 29 CGb 08 12 23.9 -34 00 58           ~ 8 0
52 [DB2002b] G251.67+0.15 DNe 08 12 24.7 -33 45 16           ~ 11 0
53 2MASS J08124705-3619179 Or* 08 12 47.0416732512 -36 19 17.894909316   16.67 15.160     K7 11 0
54 2MASS J08135169-3614013 Or* 08 13 51.6907677216 -36 14 01.309024644   18.21 16.547     M0.5 8 0
55 WRAY 15-180 Or* 08 13 56.0713623456 -36 08 02.033146392   15.13 14.300     K5+K6 16 0
56 2MASS J08142196-3610033 Or* 08 14 21.9669069696 -36 10 03.469568556   17.09 16.004     K5 9 0
57 BHR 7 DNe 08 14 23.33 -34 31 03.7           ~ 17 0
58 CG 33 CGb 08 15 29.9 -34 04 34           ~ 10 0
59 HBC 561 Em* 08 15 55.31 -35 57 58.2   16.65 16.170     M0.5 12 0
60 CG 26 CGb 08 15 59.9 -33 50 10           ~ 11 0
61 CG 24 CGb 08 19 15.8 -42 54 27           ~ 10 0
62 NAME Pup A SNR 08 24 07 -42 59.8           ~ 636 1
63 V* AT Pyx Or* 08 28 40.6971900120 -33 46 22.290118356     12.7     K2.0 35 1
64 [DB2002b] G253.60+2.94 MoC 08 28 44.0 -33 45 12           ~ 34 0
65 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
66 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
67 Cl Trumpler 10 OpC 08 47 46.4 -42 31 52           ~ 203 0
68 [DB2002b] G270.58-4.67 DNe 08 52 36 -51 51.9           ~ 11 0
69 [DB2002b] G269.66-3.90 DNe 08 52 38 -50 40.1           ~ 11 0
70 CG 7 CGb 09 14 19.3 -42 29 23           ~ 10 1
71 SA 101- reg 09 57 28.2 -00 19 39           ~ 74 0
72 [DB2002b] G301.70-7.16 DNe 12 37 09 -69 59.9           ~ 14 0
73 [DB2002b] G302.01-7.01 DNe 12 40 55 -69 52.3           ~ 10 0
74 CG 19 Y*O 12 45 39.93 -55 25 22.0           ~ 11 0
75 CG 12 CGb 13 57 42.2 -39 56 21           ~ 51 1
76 [DB2002b] G4.85-24.57 DNe 19 40 39 -34 47.6           ~ 10 0

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