2003A&A...409..715W


Query : 2003A&A...409..715W

2003A&A...409..715W - Astronomy and Astrophysics, volume 409, 715-735 (2003/10-2)

Mass-loss from dusty, low outflow-velocity AGB stars. I. Wind structure and mass-loss rates.

WINTERS J.M., LE BERTRE T., JEONG K.S., NYMAN L.-A. and EPCHTEIN N.

Abstract (from CDS):

We present the first results of a CO(2-1), (1-0), and 86GHz SiO maser survey of AGB stars, selected by their weak near-infrared excess. Among the 65 sources of the present sample we find 10 objects with low CO outflow velocities, vexp ≲5km/s. Typically, these sources show (much) wider SiO maser features. Additionally, we get 5 sources with composite CO line profiles, i.e. a narrow feature is superimposed on a broader one, where both components are centered at the same stellar velocity. The gas mass-loss rates, outflow velocities and velocity structures suggested by these line profiles are compared with the results of hydrodynamical model calculations for dust forming molecular winds of pulsating AGB stars. The observations presented here give support to our recent low outflow-velocity models, in which only small amounts of dust are formed. Therefore, the wind generation in these models is dominated by stellar pulsation. We interpret the composite line profiles in terms of successive winds with different characteristics. Our hydrodynamical models, which show that the wind properties may be extremely sensitive to the stellar parameters, support such a scenario.

Abstract Copyright:

Journal keyword(s): hydrodynamics - stars: mass-loss - stars: AGB and post-AGB - stars: winds, outflows - lines: stars radio

Simbad objects: 65

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Number of rows : 65
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 V* UY Cet AB* 00 27 06.4486825704 -06 36 16.881958296   10.61 9.32     M7 47 0
2 V* SV Psc LP* 01 46 35.3435781336 +19 05 04.537113684   10.02 8.773 8.41   M5 41 0
3 V* ZZ Ari LP* 01 55 31.1707327488 +17 11 21.709818276 11.070 9.880 8.340     M6 26 0
4 BD+06 319 PM* 02 02 38.6358744936 +07 40 36.503997060   10.92 9.84     M8 27 0
5 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1492 0
6 V* R Cet Mi* 02 26 02.3168041392 -00 10 41.813680476   10.5 7.20     M4-5e 135 0
7 V* X Hor Mi* 02 47 44.9432206968 -59 03 04.175476776   10.62 10.30     M6/8 24 0
8 V* T Ari Mi* 02 48 19.7402010816 +17 30 33.774327288   10.29 7.50     M6-8+e 114 0
9 V* U Ari Mi* 03 11 03.0366056664 +14 48 00.300444804   9.82 7.20     M4.5-7.5e 111 0
10 V* SU Eri LP* 03 51 27.0237925776 -01 22 16.336692408   9.71 8.545 8.27   M6III 27 0
11 V* EX Ori LP* 05 24 28.8521590104 -06 08 49.823290896   11.19 9.98     M7III: 34 1
12 V* S Ori Mi* 05 29 00.8923286472 -04 41 32.762469480   10.44 7.20     M6.5-7.5e 196 0
13 V* V352 Ori LP* 06 01 46.9216393272 -02 21 13.548749112   9.384 8.970 7.529   M6III 30 0
14 HD 43635 V* 06 16 01.8031026000 -27 30 34.652346840   9.25 7.93     M7III 14 0
15 V* GL Mon LP* 06 35 46.5311844600 -05 22 37.692291108   10.14 8.82     M6III 20 0
16 HD 53917 AB? 07 05 13.8036036720 -35 56 23.318925180   8.49 7.22     M6III 24 0
17 * L02 Pup AB* 07 13 32.3185436236 -44 38 22.951891964 7.90 6.66 5.10 2.49 0.07 M5IIIe 210 0
18 V* S CMi Mi* 07 32 43.0693155312 +08 19 05.197531404     6.60     M7-8e 147 0
19 V* FZ Hya LP* 08 21 33.3029607696 +04 57 30.246288984   10.01 9.078 8.799   M 27 0
20 V* Z Cnc LP* 08 22 25.2910564920 +14 59 31.899972372   9.83 8.55     M6III 62 0
21 BD-04 2335 AB* 08 26 06.1104507984 -04 54 03.467376108   10.93 9.66     ~ 7 0
22 V* RT Hya LP* 08 29 41.1540717720 -06 19 07.635332964   9.28 7.00     M7III 72 0
23 V* KK Car Mi* 08 36 01.2882768120 -59 56 26.775845196   12.16 10.85 9.16   M3pev 24 0
24 V* RV Hya LP* 08 39 43.7552377224 -09 35 13.016145480   9.27 7.87     M4III 41 0
25 V* RT Cnc LP* 08 58 15.9993994296 +10 50 42.676559520 10.04 8.97 7.52     M5III 55 1
26 V* AF Leo LP* 11 27 53.1460967640 +15 08 48.408024084   10.80 9.61     M5 35 0
27 V* X Cen Mi* 11 49 11.7844994832 -41 45 27.280751328   10.843 9.602 8.236   M6.5e 70 0
28 V* S Crt LP* 11 52 45.0981904920 -07 35 48.077650032   10.21 9.14     M6III 82 0
29 V* RW Vir LP* 12 07 14.9021005464 -06 45 56.074133880   8.60 7.18     M5II 42 0
30 V* BK Vir AB* 12 30 21.0136448232 +04 24 59.142255840 9.60 8.82 7.28     M7-III: 142 0
31 V* SW Vir AB* 13 14 04.3830437280 -02 48 25.130666916 9.24 8.52 6.85     M7III: 257 0
32 V* R Hya Mi* 13 29 42.7801586466 -23 16 52.751628992 7.26 6.58 4.97 2.27 -0.15 M6-9e 475 0
33 V* AY Vir LP* 13 51 51.6585788736 -03 40 34.029469092   11.070 9.703 9.844   M4/5Vp 33 0
34 V* Y Cen LP* 14 30 58.6201096274 -30 05 51.833212458 11.06 10.34 8.90     M7/8III 44 0
35 V* X TrA C* 15 14 19.1755012584 -70 04 46.113298104 15.88 9.19 5.81     C5,5 114 0
36 V* OV Ser LP* 15 24 55.1470143455 -02 14 06.688384515   9.96 8.59     M6III 25 0
37 V* BG Ser Mi* 15 43 36.7736621640 -01 42 37.672468020   11.62 10.40     M7 55 0
38 BD-10 4457 AB* 17 13 01.9073509176 -10 34 41.907807732   12.19 10.41 10.07   M7 20 0
39 BD-07 4447 AB* 17 29 14.6194310040 -07 27 48.975181128   10.5 10.5     M7 19 0
40 V* TV Sco LP* 17 43 27.1193842176 -43 46 03.855086040   12.42 10.77     Me 15 1
41 V* V533 Oph LP? 17 53 03.3173775576 -02 34 45.660468324   8.92 7.57     M6III 25 0
42 IRC +10340 AB* 17 56 19.4897812560 +10 37 08.303178828   12.11 11.02     M8 11 0
43 V* V988 Oph LP* 18 26 52.8363330600 +03 54 49.217099256   9.45 7.93     M5/6III 25 0
44 V* X Oph Mi* 18 38 21.1323356928 +08 50 02.806199880 8.61 7.72 6.40     M0-8e+K2:III 273 1
45 V* V Tel LP* 19 18 14.6109450720 -50 26 48.360983388   10.93 10.30     M6/8 30 0
46 IRC -20563 AB* 19 27 40.6909039992 -17 15 59.082822432   12.38 11.18     M8 21 0
47 V* V858 Aql LP* 19 29 12.3160230696 +03 51 41.808133296   11.84 10.36     M5 14 0
48 V* V1293 Aql LP* 19 33 07.7658248064 +05 01 45.798980592   8.44 6.63     M4III 35 1
49 V* S Pav Mi* 19 55 13.9680387696 -59 11 44.333160288   9.25 8.21     M8III 85 0
50 V* RZ Sgr S* 20 15 28.4023889376 -44 24 37.478466072   11.21 10.40     S4,4ep 72 0
51 V* DF Mic LP* 20 39 11.5982489280 -37 55 48.086322420   11.50 10.31 9.719   ~ 10 0
52 V* V Aqr LP* 20 46 49.3615871112 +02 26 15.239806188   9.73 8.53     M5/6(III) 46 0
53 V* NX Del LP* 20 50 25.0877406096 +06 05 38.374829052   12.33 10.68     M5 11 0
54 V* S Ind Mi* 20 56 23.2660811616 -54 19 26.858069976   10.31 7.90     M6e 55 0
55 V* RS Cap AB* 21 07 15.4311630672 -16 25 21.462156804   9.56 8.36     M6/7III 67 0
56 V* Y Pav C* 21 24 16.7499375384 -69 44 01.960245204 12.63 9.23 6.41     C7,3 82 0
57 CD-38 14664 AB* 21 39 54.2011316847 -37 59 12.232234800   11.12 10.13     M8 12 0
58 V* HT Aqr LP* 21 40 19.8123886056 -01 47 09.897522540   10.57 9.29     M8 19 0
59 V* EP Aqr AB* 21 46 31.8494911920 -02 12 45.928582560   7.93 6.78     M7-III: 233 0
60 HD 212062 AB* 22 21 41.8004610645 -07 36 30.070524734   10.07 8.81     M7- 47 0
61 V* BW Oct AB? 22 22 02.5156714248 -84 39 58.437162252   9.92 8.70     M7III 29 0
62 * pi.01 Gru S* 22 22 44.2083897000 -45 56 52.791160956 10.52 8.62 6.55 3.19 0.52 S5,7: 181 0
63 V* DM Tuc LP* 22 57 05.8561963680 -57 24 04.224759300   8.65 7.43     M8III 26 0
64 V* R Peg Mi* 23 06 39.1661885712 +10 32 36.080828808 9.43 9.07 7.79 4.87 2.35 M6-8.5e 219 0
65 V* CC Ind LP* 23 16 37.8260008104 -70 15 03.672239292   8.91 7.68     M7III 22 0

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2023.02.07-05:37:53

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