2001A&A...377..175K


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST03:30:50

2001A&A...377..175K - Astronomy and Astrophysics, volume 377, 175-191 (2001/10-1)

Multicomponent radiatively driven stellar winds. II. Gayley-Owocki heating in multitemperature winds of OB stars.

KRTICKA J. and KUBAT J.

Abstract (from CDS):

We show that the so-called Gayley-Owocki (Doppler) heating is important for the temperature structure of the wind of main sequence stars cooler than the spectral type O6. The formula for Gayley-Owocki heating is derived directly from the Boltzmann equation as a direct consequence of the dependence of the driving force on the velocity gradient. Since Gayley-Owocki heating deposits heat directly on the absorbing ions, we also investigated the possibility that individual components of the radiatively driven stellar wind have different temperatures. This effect is negligible in the wind of O stars, whereas a significant temperature difference takes place in the winds of main sequence B stars for stars cooler than B2. Typical temperature differences between absorbing ions and other flow components for such stars is of the order 103K. However, in the case when the passive component falls back onto the star, the absorbing component reaches temperatures of order 106K, which allows for emission of X-rays. Moreover, we compare our computed terminal velocities with the observed ones. We found quite good agreement between predicted and observed terminal velocities. The systematic difference coming from the using of the so called ``cooking formula'' has been removed.

Abstract Copyright:

Journal keyword(s): hydrodynamics - stars: mass-loss - stars: early-type - stars: winds, outflows

Simbad objects: 48

goto Full paper

goto View the reference in ADS

Number of rows : 48

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * alf Cam s*b 04 54 03.0103983 +66 20 33.636467 3.47 4.34 4.29 4.18 4.18 O9Ia 642 1
2 HD 34656 Em* 05 20 43.0823042222 +37 26 19.213246169 5.87 6.77 6.76     O7.5II(f) 194 0
3 * lam Ori A Em* 05 35 08.2792540686 +09 56 02.955355445 2.17 3.48 3.47     O8III((f)) 490 0
4 * chi02 Ori s*b 06 03 55.1848402263 +20 08 18.441609669 4.24 4.91 4.63 4.32 4.10 B2Ia 434 0
5 * 9 Gem s*b 06 16 58.7058947017 +23 44 27.286451876 6.31 6.70 6.25 5.78 5.38 B3Iab 226 0
6 * bet CMa bC* 06 22 41.9853527 -17 57 21.307352 0.77 1.73 1.97 2.11 2.35 B1II-III 691 0
7 HD 47240 Pu* 06 37 52.7036331811 +04 57 24.007346108 5.65 6.35 6.20 5.98 5.87 B1Ib 150 0
8 * iot CMa bC* 06 56 08.2241266 -17 03 15.267468 3.62 4.297 4.385 6.40   B3Ib/II 163 1
9 HD 52382 * 07 00 39.3386037216 -09 12 10.678042594 6.07 6.76 6.57 6.29 6.19 B0.5Ia 103 0
10 * eta CMa s*b 07 24 05.70228 -29 18 11.1798 1.65 2.37 2.45 2.38 2.44 B5Ia 356 0
11 HD 69464 Em* 08 15 48.5654685522 -35 37 52.860331301 8.47 9.11 8.80 9.42   O7Ib(f) 98 0
12 HD 74194 HXB 08 40 47.7915105936 -45 03 30.231146034 7.05 7.77 7.55 8.70   O8.5Ib-II(f)p 184 0
13 HD 79186 s*b 09 11 04.3980185567 -44 52 04.441120785 4.65 5.22 5.00 4.71 4.49 B5Ia 130 0
14 HD 91572 * 10 33 12.2652458422 -58 10 13.644176941 7.44 8.29 8.24 9.03   O6.5V((f))z 86 0
15 HD 91969 * 10 35 49.3175809360 -58 13 27.411203873 5.57 6.41 6.43 7.56   B0Ib 109 0
16 HD 92964 s*b 10 42 40.5663586355 -59 12 56.727932428 5.12 5.78 5.51 5.30 5.00 B2.5Ia 140 0
17 V* V661 Car EB* 10 44 00.3711709837 -59 52 27.521897801 7.60 8.31 8.04 8.75   O6.5III(f) 137 0
18 HD 96248 s*b 11 04 57.5666122698 -59 51 32.040158420 5.97 6.728 6.571 7.49   B1Iab 104 0
19 HD 96917 V* 11 08 42.6177305611 -57 03 56.912915285 6.46 7.29 7.21 7.04 6.89 O8Ib(n)(f) 101 0
20 HD 101190 ** 11 38 09.9112605648 -63 11 48.613340265 6.58 7.37 7.33 8.48   O6IV((f)) 156 0
21 HD 101436 ** 11 39 49.9551036486 -63 28 43.541077482 6.8 8.98 8.93 8.78   O6.5V((f)) 130 1
22 HD 106343 s*b 12 14 16.9255009123 -64 24 30.669505386 5.58 6.292 6.235     B1.5Ia 84 0
23 HD 109867 s*b 12 38 52.3586203902 -67 11 34.977744461 5.5 6.263 6.265 7.45   B0.5/1Iab 93 0
24 HD 112244 s*b 12 55 57.1346044550 -56 50 08.891958192 4.49 5.33 5.32 5.21 5.21 O8.5Iab(f)p 198 0
25 HD 116084 * 13 22 16.2865323160 -52 10 58.626397842 5.30 6.02 5.91 5.75 5.65 B2Ib 55 0
26 HD 148379 Be* 16 29 42.3271423063 -46 14 35.632001296 5.51 5.95 5.37 4.85 4.39 B2Iab 170 0
27 * tau Sco * 16 35 52.9528530 -28 12 57.661515 1.55 2.56 2.81 2.93 3.18 B0.2V 867 0
28 HD 151515 SB* 16 49 48.2513677482 -42 00 06.175258125 6.77 7.48 7.30 7.11 6.88 O7II(f) 117 0
29 HD 151804 s*b 16 51 33.7215112148 -41 13 49.928887100 4.45 5.29 5.22     O8Iaf 359 0
30 HD 152405 SB* 16 54 55.3693738212 -40 31 29.392303718 6.71 7.42 7.29 7.12 6.96 O9.7II 111 1
31 HD 152424 s*b 16 55 03.3297426438 -42 05 26.993062976 6.11 6.69 6.27 7.49   OC9.2Ia 185 0
32 * k Sco s*b 17 04 49.3525354906 -34 07 22.541655837 4.44 5.13 4.87 4.59 4.42 B2Iab 145 0
33 * gam Ara Be* 17 25 23.6593111 -56 22 39.814775 2.25 3.21 3.34     B1Ib 258 0
34 * 63 Oph * 17 54 54.0431493243 -24 53 13.544413171 5.35 6.24 6.20 7.33   O8II((f)) 169 0
35 HD 163758 s*b 17 59 28.3670166132 -36 01 15.588119230 6.46 7.35 7.32 8.38   O6.5Iafp 147 0
36 V* V692 CrA Ro* 18 13 12.6990208237 -41 20 09.999646909   5.298 5.462     B2III 57 0
37 HD 175754 Em* 18 57 35.7086008504 -19 09 11.269005090 5.99 6.96 7.03     O8II(n)((f))p 142 0
38 HD 186980 * 19 46 15.9013986681 +32 06 58.160549378 6.72 7.56 7.48     O7.5III((f)) 112 0
39 HD 188209 s*b 19 51 59.0685711923 +47 01 38.420250587 4.61 5.55 5.63 5.54 5.64 O9.5Iab 294 0
40 HD 190603 s*b 20 04 36.1744053423 +32 13 06.952102252 5.73 6.19 5.65 5.13 4.71 B1.5Ia 327 0
41 HD 190864 Em* 20 05 39.8022905765 +35 36 27.989246210 7.18 7.93 7.78     O6.5III(f) 213 0
42 * 55 Cyg s*b 20 48 56.2911163453 +46 06 50.883966851 4.83 5.28 4.86 4.41 4.10 B4Ia 477 0
43 * 69 Cyg Pu* 21 25 47.0250425121 +36 40 02.585147081 4.89 5.86 5.94     B0Ib 192 0
44 * 9 Cep Pu* 21 37 55.2235288899 +62 04 54.993364177 4.49 5.03 4.73 4.42 4.24 B2Ib 290 0
45 * lam Cep s*b 22 11 30.5750839949 +59 24 52.147736074 4.55 5.29 5.05 4.77 4.62 O6.5I(n)fp 654 1
46 HD 210809 s*b 22 11 38.6004905633 +52 25 47.950552363 6.7 7.61 7.56     O9Iab 199 0
47 * 26 Cep * 22 27 05.3100386416 +65 07 56.158587297 5.24 5.806 5.515     B0.5Ib 142 0
48 HD 218915 s*b 23 11 06.9480376287 +53 03 29.651927910 6.32 7.22 7.20     O9.2Iab 187 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2001A&A...377..175K and select 'bookmark this link' or equivalent in the popup menu


2021.05.17-03:30:50

© Université de Strasbourg/CNRS

    • Contact