2015A&A...581A..60D


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.14CEST19:56:02

2015A&A...581A..60D - Astronomy and Astrophysics, volume 581A, 60-60 (2015/9-1)

New observations and models of circumstellar CO line emission of AGB stars in the Herschel SUCCESS programme.

DANILOVICH T., TEYSSIER D., JUSTTANONT K., OLOFSSON H., CERRIGONE L., BUJARRABAL V., ALCOLEA J., CERNICHARO J., CASTRO-CARRIZO A., GARCIA-LARIO P. and MARSTON A.

Abstract (from CDS):

Asymptotic giant branch (AGB) stars are in one of the latest evolutionary stages of low to intermediate-mass stars. Their vigorous mass loss has a significant effect on the stellar evolution, and is a significant source of heavy elements and dust grains for the interstellar medium. The mass-loss rate can be well traced by carbon monoxide (CO) line emission. We present new Herschel/HIFI and IRAM 30 m telescope CO line data for a sample of 53 galactic AGB stars. The lines cover a fairly large range of excitation energy from the J=1-0 line to the J=9-8 line, and even the J=14-13 line in a few cases. We perform radiative transfer modelling for 38 of these sources to estimate their mass-loss rates. We used a radiative transfer code based on the Monte Carlo method to model the CO line emission. We assume spherically symmetric circumstellar envelopes that are formed by a constant mass-loss rate through a smoothly accelerating wind. We find models that are consistent across a broad range of CO lines for most of the stars in our sample, i.e., a large number of the circumstellar envelopes can be described with a constant mass-loss rate. We also find that an accelerating wind is required to fit, in particular, the higher-J lines and that a velocity law will have a significant effect on the model line intensities. The results cover a wide range of mass-loss rates (∼10–8 to 2x10–5M/yr) and gas expansion velocities (2 to 21.5km/s), and include M-, S-, and C-type AGB stars. Our results generally agree with those of earlier studies, although we tend to find slightly lower mass-loss rates by about 40%, on average. We also present ``bonus'' lines detected during our CO observations.

Abstract Copyright:

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

Simbad objects: 54

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Number of rows : 54

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* KU And Mi* 00 06 52.7551927308 +43 05 02.356209801       14.12   M10 73 0
2 V* R And S* 00 24 01.9473999328 +38 34 37.326131071 10.61 9.36 7.39 4.45 2.30 S5-7/4-5e 338 0
3 V* S Cas S* 01 19 41.9752833334 +72 36 40.857560507           S3-54-8 113 1
4 V* R Scl C* 01 26 58.0946233986 -32 32 35.437732667 17.26 9.59 5.72 3.69 2.30 C-N5+ 297 0
5 V* V370 And AB* 01 58 44.3261782976 +45 26 06.912910289   11.58 9.30     M8 93 0
6 BD+06 319 PM* 02 02 38.6352807560 +07 40 36.500821146   10.92 9.84     M8 24 0
7 V* W And S* 02 17 32.9610669 +44 18 17.769045   9.62       S7-8/1e-M7Se 204 1
8 V* R Hor Mi* 02 53 52.7746504509 -49 53 22.732999275     3.92 4.99 1.51 M5-7e 169 0
9 RAFGL 482 C* 03 23 37.2632749428 +70 27 05.067729496       19.7   C-rich 47 0
10 LEE 259 C* 03 26 29.5050382299 +47 31 48.463099623           N 165 0
11 V* GY Cam C* 04 35 17.5584381137 +62 16 23.759864277           C-rich 54 0
12 V* R Lep C* 04 59 36.3480393629 -14 48 22.511432606 15.06 13.51 7.76 4.90 3.42 C7,6e 315 0
13 IRC +50137 Mi* 05 11 19.4489549676 +52 52 33.222548186           M10 169 0
14 IRC +70066 Mi* 05 46 44.3250774318 +69 58 24.408023024           M9.5 73 0
15 RAFGL 865 C* 06 04 00.04728 +07 25 52.0104           C-rich 95 0
16 IRAS 06192+4657 C* 06 22 59.6200847059 +46 55 35.907004862           C-rich 14 0
17 V* UU Aur C* 06 36 32.8375658812 +38 26 43.833646997   7.89 5.25 3.31 1.90 C-N5- 290 1
18 RAFGL 971 C* 06 36 54.2442987630 +03 25 28.677658825       18.4   C5,9e 62 0
19 V* GX Mon OH* 06 52 47.0411386021 +08 25 19.131304542   15.40 15.46 10.56   M9 105 0
20 V* R Gem S* 07 07 21.2699664341 +22 42 12.750071105 11.74 9.89 7.68 3.75 0.39 S3.5-6.5/6e 186 0
21 * L02 Pup AB* 07 13 32.3181035 -44 38 23.062946 7.90 6.66 5.10 2.49 0.07 M5IIIe 188 0
22 V* Y Lyn S* 07 28 11.6139802943 +45 59 26.215265764 9.88 8.71 6.98 4.25 1.96 M6S 133 0
23 V* S CMi Mi* 07 32 43.0700231318 +08 19 05.201537744     6.60     M7-8e 143 0
24 RAFGL 4078 C* 07 45 02.4140089106 -71 19 45.852846228       15.92 12.72 C 44 0
25 V* RS Cnc S* 09 10 38.7978379 +30 57 47.295961 8.65 7.62 5.95 3.06 0.73 M6S 295 0
26 V* R LMi Mi* 09 45 34.2832012840 +34 30 42.836146420   10.96 9.99     M6.5-9e 307 0
27 V* R Leo Mi* 09 47 33.4839808805 +11 25 43.823283729 9.22 8.94 7.53 3.39 0.12 M7-9e 870 1
28 IRC +10216 C* 09 47 57.40632 +13 16 43.5648     10.96     C9,5e 2134 0
29 V* U Hya C* 10 37 33.2729535 -13 23 04.352923 13.29 7.51 4.82 3.05 1.78 C-N5 283 0
30 V* R Crt AB* 11 00 33.8541158313 -18 19 29.574953304   10.33 9.80     M7/8III 191 0
31 V* BK Vir AB* 12 30 21.0150535628 +04 24 59.159360514 9.60 8.82 7.28     M7-III: 130 0
32 V* Y UMa AB* 12 40 21.2821521006 +55 50 47.603974534   9.66 7.70     M7II-III: 83 0
33 V* RT Vir AB* 13 02 37.9836301550 +05 11 08.360733054 10.07 9.07 7.41     M8III 293 0
34 V* SW Vir AB* 13 14 04.3908742003 -02 48 25.155302846 9.24 8.52 6.85     M7III: 245 0
35 V* R Hya Mi* 13 29 42.7818674 -23 16 52.774679 7.26 6.58 4.97 2.27 -0.15 M6-9e 459 0
36 V* RX Boo AB* 14 24 11.6240733185 +25 42 13.381760051   9.23 8.60     M7.5-M8 417 0
37 V* X TrA C* 15 14 19.1744832785 -70 04 46.126632480 15.88 9.19 5.81     C5,5 104 0
38 V* S CrB Mi* 15 21 23.9560807971 +31 22 02.567988144 7.51 7.15 5.80     M6.5-8e 332 0
39 WOS 48 C* 15 23 05.0744336371 -51 25 58.881494593   17.85 16.66 14.51 10.18 C 118 1
40 V* V CrB C* 15 49 31.3129356625 +39 34 17.889392903     6.90     C6,2e_MS3 249 0
41 V* X Her AB* 16 02 39.1738474892 +47 14 25.258160301   7.64 6.58     M6III 223 0
42 IRC +10365 Mi* 18 37 19.2595666948 +10 25 42.492197977           M9 133 0
43 IRC +20370 C* 18 41 54.5507538243 +17 41 08.481183828       13.56   C7,3e 108 0
44 V* V Aql C* 19 04 24.1548619887 -05 41 05.434251344   11.09 6.90     C-N5 202 0
45 V* R Cyg S* 19 36 49.3563270715 +50 11 59.719752717   9.96 6.10   6.447 S4-8/6e 264 1
46 V* RR Aql Mi* 19 57 36.0628075265 -01 53 11.322802573     7.80     M7.5e 275 2
47 RAFGL 2494 C* 20 01 09.0488458825 +40 55 39.036558501           C 63 0
48 V* V1943 Sgr AB* 20 06 55.2458545503 -27 13 29.754314126   9.25 8.04     M7/8III 67 0
49 IRC -10529 OH* 20 10 27.8733409252 -06 16 13.757843352         15.49 M: 130 0
50 V* RV Aqr C* 21 05 51.7378981699 -00 12 42.121668132     11.5     C6,3e 95 0
51 V* T Cep Mi* 21 09 31.7832206157 +68 29 27.190142015 9.15 8.82 7.33     M6-9e 363 0
52 V* EP Aqr AB* 21 46 31.8467491729 -02 12 45.901666975   7.93 6.78     M7-III: 209 0
53 * pi.01 Gru S* 22 22 44.2112214756 -45 56 52.780402708 10.52 8.62 6.55 3.19 0.52 S5,7: 159 0
54 * 19 Psc C* 23 46 23.5126056542 +03 29 12.505415198 10.95 7.62 5.02 3.19 1.82 C-N6 432 0

    Equat.    Gal    SGal    Ecl

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2020.07.14-19:56:02

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