2010A&A...523A..59C


Query : 2010A&A...523A..59C

2010A&A...523A..59C - Astronomy and Astrophysics, volume 523, A59-59 (2010/11-2)

Mapping the 12CO J=1-0 and J=2-1 emission in AGB and early post-AGB circumstellar envelopes. I. The COSAS program, first sample.

CASTRO-CARRIZO A., QUINTANA-LACACI G., NERI R., BUJARRABAL V., SCHOEIER F.L., WINTERS J.M., OLOFSSON H., LINDQVIST M., ALCOLEA J., LUCAS R. and GREWING M.

Abstract (from CDS):

We present COSAS (CO Survey of late AGB Stars), a project to map and analyze the 12CO J=1-0 and J=2-1 line emission in a representative sample of circumstellar envelopes around AGB and post-AGB stars. The survey was undertaken with the aim of investigating small- and large-scale morphological and kinematical properties of the molecular environment surrounding stars in the late AGB and early post-AGB phases. For this, COSAS combines the high sensitivity and spatial resolving power of the IRAM Plateau de Bure interferometer with the better capability of the IRAM 30m telescope to map extended emission. The global sample encompasses 45 stars selected to span a range in chemical type, variability type, evolutionary state, and initial mass. COSAS provides means to quantify variations in the mass-loss rates, assess morphological and kinematical features, and to investigate the appearance of fast aspherical winds in the early post-AGB phase. This paper, which is the first of a series of COSAS papers, presents the results from the analyses of a first sample of 16 selected sources. The envelopes around late AGB stars are found to be mostly spherical, often mingled with features such as concentric arcs (R Cas and TX Cam), a broken spiral density pattern (TX Cam), molecular patches testifying to aspherical mass-loss (WX Psc, IK Tau, V Cyg, and S Cep), and also with well-defined axisymmetric morphologies and kinematical patterns (X Her and RX Boo). The sources span a wide range of angular sizes, from relatively compact (CRL 2362, OH 104.9+2.4 and CRL 2477) to very large (χ Cyg and TX Cam) envelopes, sometimes partially obscured by self-absorption features, which particularly for IK Tau and χ Cyg testifies to the emergence of aspherical winds in the innermost circumstellar regions. Strong axial structures with more or less complex morphologies are detected in four early post-AGB stars (IRAS20028+3910, IRAS23321+6545, IRAS19475+3119 and IRAS21282+5050) of the sub-sample.

Abstract Copyright:

Journal keyword(s): circumstellar matter - stars: AGB and post-AGB - stars: mass-loss

Simbad objects: 78

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Number of rows : 78
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 7C 0059+5808 QSO 01 02 45.7622788272 +58 24 11.137682016   20.09 19.22 18.57 17.90 ~ 208 1
2 IRC +10011 OH* 01 06 25.9879717848 +12 35 52.896392052   20.7   18.26 14.01 M8 412 0
3 QSO B0109+224 BLL 01 12 05.8247044608 +22 44 38.785880796   16.00 15.66 15.47   ~ 318 2
4 OH 127.8 -0.0 OH* 01 33 51.21 +62 26 53.2           M9III 176 0
5 QSO B0149+218 QSO 01 52 18.0587265528 +22 07 07.696343460     18 18.89   ~ 151 1
6 V* V370 And AB* 01 58 44.3261782976 +45 26 06.912910289   11.58 9.30     M8 95 0
7 BD+06 319 PM* 02 02 38.6358744936 +07 40 36.503997060   10.92 9.84     M8 26 0
8 4C 15.05 Bla 02 04 50.41389571 +15 14 11.0436591   21.9 22.1 21.00   ~ 386 1
9 6C 021252+733537 BLL 02 17 30.8129232696 +73 49 32.622815712     19.0 18.97   ~ 427 1
10 QSO B0306+101 QSO 03 09 03.6232590528 +10 29 16.338746292   18.45   19.91   ~ 172 1
11 V* U Cam C* 03 41 48.1758504744 +62 38 54.395692404   11.5 11.00     C-N5 239 0
12 V* IK Tau Mi* 03 53 28.8924743304 +11 24 21.895183368 16.99 17.03 13.39 7.29 3.20 M7-11 609 0
13 4C 50.11 QSO 03 59 29.7469819512 +50 57 50.159106936           ~ 417 1
14 QSO B0406+121 BLL 04 09 22.0088301624 +12 17 39.857554068   20.5   18.27   ~ 102 1
15 Mrk 1506 Sy1 04 33 11.0956735296 +05 21 15.619461552   15.72 15.05 10.08   ~ 1935 2
16 RAFGL 618 pA* 04 42 53.6242032600 +36 06 53.400902220   16.32   12.59   C-rich 985 0
17 V* TX Cam Mi* 05 00 51.1627935408 +56 10 54.041462220       14.02   M9-9.5 342 0
18 6C 052928+482031 QSO 05 33 15.8662006608 +48 22 52.809925728     19.90     ~ 107 1
19 * alf Ori s*r 05 55 10.30536 +07 24 25.4304 4.38 2.27 0.42 -1.17 -2.45 M1-M2Ia-Iab 1579 0
20 7C 055201.39+394824.00 QSO 05 55 30.8055972888 +39 48 49.166341920     18.0 17.5   ~ 488 2
21 IRAS 06192+4657 C* 06 22 59.6152195248 +46 55 35.918151132           C-rich 14 0
22 V* UU Aur C* 06 36 32.8371036984 +38 26 43.819021608   7.89 5.25 3.31 1.90 C-N5- 297 1
23 V* R Gem S* 07 07 21.2705134872 +22 42 12.747215448 11.74 9.89 7.68 3.75 0.39 S3.5-6.5/6e 192 0
24 V* BM Gem C* 07 20 59.0073521904 +24 59 58.086063708     11.50     C-J5- 142 1
25 V* R LMi Mi* 09 45 34.2840467232 +34 30 42.809054724   10.96 9.99     M6.5-9e 314 0
26 V* R Leo Mi* 09 47 33.4839808805 +11 25 43.823283729 9.22 8.94 7.53 3.39 0.12 M7-9e 894 1
27 IRC +10216 C* 09 47 57.40632 +13 16 43.5648           C9,5e 2256 0
28 V* RW LMi C* 10 16 02.2777043904 +30 34 19.045098516       15.27   C4,3e 386 0
29 V* V Hya C* 10 51 37.2615873024 -21 15 00.333928044   12.23 6.80     C-N:6 350 0
30 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 5601 1
31 V* RT Vir AB* 13 02 37.9814644272 +05 11 08.362884984 10.07 9.07 7.41     M8III 308 0
32 V* R Hya Mi* 13 29 42.7818674 -23 16 52.774679 7.26 6.58 4.97 2.27 -0.15 M6-9e 474 0
33 ICRF J135704.4+191907 Sy1 13 57 04.4366598768 +19 19 07.371837768   16.33 16.03 15.3   ~ 431 2
34 V* RX Boo AB* 14 24 11.6253191184 +25 42 13.394221596   9.23 8.60     M7.5-M8 431 0
35 V* S CrB Mi* 15 21 23.9553294936 +31 22 02.584877304 7.51 7.15 5.80     M6.5-8e 340 0
36 V* V CrB C* 15 49 31.3121978280 +39 34 17.892629256     6.90     C6,2e_MS3 256 0
37 V* X Her AB* 16 02 39.1730141112 +47 14 25.265335956   7.64 6.58     M6III 231 0
38 6C 161147+342017 QSO 16 13 41.0642858568 +34 12 47.910181572   17.98 17.46 17.07   ~ 604 1
39 3C 345 QSO 16 42 58.8102993888 +39 48 37.002763188   16.81 16.59 16.84   ~ 1641 2
40 HD 161796 pA* 17 44 55.4694563472 +50 02 39.482823336 8.00 7.68 7.21 6.77 6.51 F3Ib 316 0
41 Hen 3-1475 PN 17 45 14.1819342984 -17 56 46.778166204   13.84 12.87     B7e 193 0
42 * 89 Her pA* 17 55 25.1883476136 +26 02 59.968457664 5.36 5.70 5.36 5.06 4.94 F2Ibp 400 0
43 3C 371 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 821 2
44 OH 17.7 -2.0 pA* 18 30 30.703 -14 28 57.04           ~ 137 1
45 OH 26.5 +0.6 OH* 18 37 32.50920 -05 23 59.1936           O-rich 289 0
46 V* R Sct RV* 18 47 28.9498974024 -05 42 18.542611800 8.30 6.67 5.20 4.14 3.37 K4/5pec 306 0
47 V* W Aql S* 19 15 23.3572741560 -07 02 50.333886492   12.72 10.14     S6/6e 220 0
48 RAFGL 2362 OH* 19 18 14.67 +23 49 27.9           ~ 51 0
49 ICRF J192559.6+210626 BLL 19 25 59.60535560 +21 06 26.1620442           ~ 188 1
50 4C 73.18 BLL 19 27 48.4947009120 +73 58 01.572558816     15.5 15.11   ~ 509 2
51 Min 1-92 pA* 19 36 18.9295687968 +29 32 49.785288144 12.13 12.35 11.75 11.54   B0.5IV[e] 244 1
52 V* TT Cyg C* 19 40 57.0158460384 +32 37 05.756696400   10.43 10.20     C-N5- 196 0
53 HD 331319 pA* 19 49 29.5618298904 +31 27 16.248771432 10.4 9.91 9.32 9.24   F3Ibe 90 0
54 * chi Cyg S* 19 50 33.9213430345 +32 54 50.575531294 7.02 6.06 4.24 1.81 -0.01 S6-9/1-2e 681 0
55 HD 187885 pA* 19 52 52.7033593752 -17 01 50.289441096   9.25 8.68 8.32   F2/6Ia 174 0
56 RAFGL 2477 S* 19 56 48.4423076904 +30 44 02.604494580   17.9 14.8 14.1   M6SIII 54 1
57 V* RR Aql Mi* 19 57 36.0616870728 -01 53 11.339520360     7.80     M7.5e 287 2
58 RAFGL 2494 C* 20 01 09.0530414424 +40 55 38.995072680           C 65 0
59 IRAS 20028+3910 pA* 20 04 35.9834860344 +39 18 44.208893700           F3-7I 60 0
60 QSO J2015+371 BLL 20 15 28.7286181152 +37 10 59.514330396     21.82 21.4   ~ 267 2
61 QSO B2023+336 BLL 20 25 10.8420829392 +33 43 00.214964976       0   ~ 149 1
62 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 759 0
63 3C 418.0 QSO 20 38 37.0347144096 +51 19 12.660083976   21.30 20.00 18.9   ~ 287 0
64 V* V Cyg C* 20 41 18.2676815496 +48 08 28.810980420   14.05 7.70     C7,4eJ 299 0
65 V* V1610 Cyg pA* 21 02 18.27 +36 41 37.0           F5Iae 855 1
66 V* T Cep Mi* 21 09 31.7834766408 +68 29 27.231070884 9.15 8.82 7.33     M6-9e 374 0
67 [D75b] Em* 21-021 PN 21 29 58.4711786760 +51 04 00.323924520   15.66 14.20 13.89   O7(f)/[WC11] 235 0
68 V* S Cep C* 21 35 12.8233100592 +78 37 28.185141792   12.13 7.40     C7,3e 255 0
69 NSV 25875 OH* 22 19 27.48 +59 51 21.7           ~ 135 0
70 * pi.01 Gru S* 22 22 44.2083897000 -45 56 52.791160956 10.52 8.62 6.55 3.19 0.52 S5,7: 180 0
71 V* V448 Lac pA* 22 24 31.4283564864 +43 43 10.978781916 11.22 10.61 9.69     F7I 103 0
72 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 2702 2
73 RAFGL 3068 C* 23 19 12.60744 +17 11 33.1332           C 264 0
74 IRAS 23321+6545 pA* 23 34 22.48 +66 01 51.7           C-rich 45 0
75 IRC +40540 C* 23 34 27.5185864392 +43 33 01.323347256     15.12     C8,3.5eJ 175 0
76 * 19 Psc C* 23 46 23.5164473376 +03 29 12.519049272 10.95 7.62 5.02 3.19 1.82 C-N6 441 0
77 PN M 2-56 pA* 23 56 36.4049726352 +70 48 18.246610008   19.81 17 17.27 17.64 Be 91 0
78 V* R Cas Mi* 23 58 24.8682785040 +51 23 19.713029388 6.71 6.63 4.80     M6.5-9e 692 0

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2022.10.07-04:58:33

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