2017MNRAS.464.4927S

Query : 2017MNRAS.464.4927S

2017MNRAS.464.4927S - Mon. Not. R. Astron. Soc., 464, 4927-4937 (2017/February-1)

The distribution and kinematics of interstellar O VI in the Milky Way.

SARMA R., PATHAK A., MURTHY J. and SARMA J.K.

Abstract (from CDS):

We present the results of a survey of interstellar O VI absorption in the Milky Way (MW) towards 69 stars in the Large Magellanic Cloud obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). The integrated MW O VI column densities log N(O VI) are in the range from 13.68 to 14.73 with a mean of 14.26–0.09+0.07 atoms cm–2. The O VI exponential scale height is found to be 2.28 ± 1.06 kpc. The O VI column density correlates with the Doppler parameter b. The O VI velocity dispersion ranges from 14.0 to 91.6 with an average value of 62.7 km s–1. These high values of the velocity dispersion reveal the effect of turbulence, multiple velocity components and collision on broad O VI profiles. There is a significant variation of the O VI column density on all scales studied (0 .○0025-6 .○35). The smallest scale for which O VI column density variations has been found is Δθ ∼ 9 arcsec. A comparison of the O VI velocity profiles with Fe II indicates the presence of intermediate-velocity cloud and/or high-velocity cloud components in the O VI absorption.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): ISM: atoms - ISM: galaxies: Milky Way - ISM: galaxies: Milky Way

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 - 2024 		#notes
1 NAME Magellanic Stream HVC 00 32 -30.0           ~ 971 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
3 NGC 346 Cl* 00 59 04.4000 -72 10 39.000           ~ 490 0
4 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7062 0
5 HD 268605 s*b 04 50 18.9258130824 -67 39 38.036838240 10.244 11.2 11.377   11.322 O9.5/B0Ia 86 0
6 SK -68 3 * 04 52 15.4670813184 -68 24 26.713040976   13.00 13.13     O9I 12 0
7 LHA 120-S 6 Em* 04 53 06.5010706104 -68 03 22.796532648 12.663 13.725 13.796 13.98 14.112 O6.5V 18 0
8 SK -67 18 WR* 04 55 14.9246934528 -67 11 23.535862980 10.990 11.803 11.95   12.072 O6-7n-nn+WN5-6-A 58 0
9 HD 32109 WR* 04 55 31.3415815464 -67 30 02.683346940 12.893 13.46 13.81 13.95 13.512 WN4b 74 0
10 BRRG 75 * 04 56 43.2756150816 -66 25 02.492537664           ~ 7 0
11 PGMW 3102 * 04 56 45.3652438416 -66 24 46.424829456 12.601 13.319 13.416   13.502 O7V 12 0
12 [L72] LH 9-19 * 04 56 55.4864104584 -66 28 57.884969100 13.184 14.026 14.252   14.462 O6.5V 7 0
13 BI 42 Ro* 04 57 00.8846599752 -66 24 25.206714576 11.998 12.768 12.896 13.210 12.663 O8V 25 0
14 SV* HV 2241 V* 04 57 15.7351536912 -66 33 54.281614680   13.82 13.96     O6-8V-III((f)) 30 0
15 HD 32402 WR* 04 57 24.0820685472 -68 23 57.120838692   12.53 12.69 13.24   WC 78 0
16 HD 268847 WR* 04 59 51.5602106760 -67 56 55.438699560 13.658 14.21 14.58 14.75 14.426 WN4b 54 0
17 SK -65 21 s*b 05 01 22.2741446472 -65 41 47.884690176 11.119 12.08 12.70   12.373 O9.7Iab 40 0
18 SV* HV 2274 EB* 05 02 40.7809489608 -68 24 21.495338172 13.298 13.984 14.127 14.192 14.390 ~ 77 0
19 HD 33133 WR* 05 03 08.9126630616 -66 40 57.492259824   12.46 12.63 12.85   WN7h 93 0
20 Cl* NGC 1818 ROB D1 * 05 04 32.5 -66 24 51           ~ 9 0
21 SK -70 69 * 05 05 18.6717716496 -70 25 49.874974104 12.586 13.616 13.854   14.074 O3V(f) 39 0
22 SK -67 69 * 05 14 20.0729621208 -67 08 03.171550632 11.950 13.012 13.040   13.330 O3III 25 0
23 OGLE J051804.81-694818.9 EB* 05 18 04.7115150384 -69 48 18.906784524 13.566 14.658 14.698 14.94 14.901 ~ 18 0
24 BI 130 Em* 05 18 05.9940216528 -69 14 34.647894060 11.343 12.424 12.586 12.86 13.365 O8.5V((f)) 16 0
25 V* S Dor sg* 05 18 14.3570612088 -69 15 01.149576912 9.08 10.39 10.25 9.74 9.14 Be3 378 0
26 NGC 1918 SNR 05 19 04.50 -69 38 56.0           ~ 100 0
27 HD 35517 WR* 05 19 16.3515868608 -69 39 20.012864004 11.193 11.754 11.58 12.36 11.953 WC4+O5/6III/V+O 88 0
28 HD 269445 WR* 05 22 59.7855849168 -68 01 46.635948408 10.79 11.77 11.520 11.41 10.979 Ofpe/WN9 124 0
29 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17428 0
30 SK -69 124 * 05 25 18.2515805760 -69 03 11.489785740 11.583 12.664 12.826   12.791 OB 24 0
31 SK -67 105 EB* 05 26 06.1884853848 -67 10 56.784543384 11.785 12.27 12.42   11.661 OB 39 0
32 HD 269525 * 05 26 15.2190917352 -67 29 59.904231972   11.564 11.758 12.126   B0I 26 0
33 SK -67 107 * 05 26 20.6747956344 -67 29 55.652908164   12.38 12.50     B0I 18 0
34 HD 36521 WR* 05 26 30.2591541144 -68 50 27.500574192   12.156 12.317 12.529   WC4+O6III/V+O 84 0
35 HD 269546 WR* 05 26 45.3202797576 -68 49 52.787839260 9.00 9.83 9.86 9.76 9.76 WN5b(h)+B3I 108 0
36 BI 170 * 05 26 47.6917783584 -69 06 12.016345140 11.823 12.914 13.116   12.975 O9.5Ib 25 0
37 SK -67 111 s*b 05 26 48.0782169672 -67 29 29.782796892   12.33 12.42     O6Iaf(n)pv 46 0
38 SV* HV 2543 EB* 05 27 27.3922227816 -67 11 54.502222164 11.913 13.014 13.206   13.055 OB 23 0
39 SK -70 91 ** 05 27 33.5728977024 -70 36 47.950130916 11.369 12.55 12.78   12.937 O2III(f*)+OB 27 0
40 SK -66 100 * 05 27 45.4472444328 -66 55 15.293259480 12.227 12.976 13.204   13.501 O6II(f) 44 0
41 HD 269599 ** 05 28 22.71 -69 08 31.9           ~ 64 1
42 HD 271294 * 05 28 39.4513417632 -65 39 00.631527804 11.919 12.40 12.56   12.240 OB 20 0
43 SV* HV 982 EB* 05 29 52.3071229680 -69 09 22.559372640   14.76 14.648 14.99 14.761 ~ 47 0
44 SK -70 97 s*b 05 30 11.2516938792 -70 51 42.189853464 11.903 12.839 13.012   13.194 O9.7Iab 11 0
45 HD 37026 WR* 05 30 12.1637529576 -67 26 08.329055928 12.853 13.16 13.53 13.56 13.856 WC 76 0
46 BI 184 * 05 30 30.6622260408 -71 02 31.604520048 13.033 13.830 13.926   13.954 B0.5V 17 0
47 W61 18-3 * 05 30 36.3583344456 -67 17 42.880325964   14.01 14.18     B2II 15 0
48 HD 37248 WR* 05 30 38.703 -71 01 47.80 12.319 12.983 12.99 13.39 13.413 WC4+O9 56 0
49 HD 269676 ** 05 31 15.634248 -71 04 09.90516 11.134 11.417 11.547 12.061 12.191 O6+O9: 82 0
50 HD 269698 s*b 05 31 44.2080798984 -67 38 01.374839556 9.520 12.00 12.22 12.47 11.167 O4Ia 111 0
51 HD 269702 * 05 31 52.1192227056 -67 34 20.768696508   11.69 11.99     O8I(f)p 29 0
52 SNR B0532-67.5 SNR 05 32 30 -67 31.6           ~ 22 0
53 SK -67 191 * 05 33 34.0158776232 -67 30 19.741489992 12.153 13.214 13.436   14.838 O8V 28 0
54 SV* HV 5936 EB* 05 33 38.8196073288 -66 37 39.969719472   15.01 14.741 15.25 14.911 ~ 33 0
55 HD 37680 WR* 05 34 19.2493989720 -69 45 10.295445528 12.807 12.98 13.25 13.21 13.490 WC 74 1
56 OGLE BRIGHT-LMC-ECL-17 EB* 05 34 41.3495543376 -69 31 38.667576432 12.739 13.672 14.050 13.79 13.966 O3If+O6V 23 0
57 HD 269810 Em* 05 35 13.8977747136 -67 33 27.542449260   12.08 12.22 12.53   O3III(f*) 106 0
58 LHA 120-S 125 WR* 05 35 54.3748881672 -68 59 07.890914940 12.463 13.324 13.266 13.33 12.609 WN9ha 72 0
59 NAME 30 Dor C Rad 05 36 07.70 -69 11 52.6           ~ 77 1
60 HD 269858 s*b 05 36 43.6936418088 -69 29 47.451149232   10.24 10.15 9.95 9.05 LBV 283 2
61 SK -66 172 * 05 37 05.3893162560 -66 21 34.989059484   13.01 13.1     OB 41 0
62 BI 253 * 05 37 34.4595697440 -69 01 10.178659452 12.765 13.650 13.669   13.742 O2V(f*) 46 0
63 SK -68 137 * 05 38 24.6792593784 -68 52 32.951140752 12.243 13.274 13.346   13.242 OB 40 0
64 Brey 77 WR* 05 38 42.1044150840 -69 05 55.335965424     12.86   12.79 O2If* 79 0
65 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2018 2
66 HD 38282 WR* 05 38 53.3783458680 -69 02 00.895545204   10.98 11.11 11.26   WN5/6h+WN6/7h 170 1
67 HD 269927 ** 05 38 58.856976 -69 29 22.47504     10.68 11.23   B0I+O7If 27 0
68 RMC 149 * 05 39 58.7447958816 -69 44 04.073554644 11.645 12.442 12.517   12.227 O8.5II((f)) 32 0
69 SNR B0543-68.9 SNR 05 43 08 -68 58.3           ~ 56 0
70 [MLD95] LMC 2-703 * 05 43 08.4079257384 -67 50 53.344768380 13.062 13.964 14.150   14.465 O9.5V 14 0
71 SK -67 250 EB* 05 43 15.6408168672 -67 51 10.456101396 11.314 12.631 12.541   12.781 OB 18 0
72 [MLD95] LMC 2-755 * 05 43 16.0583019840 -67 49 51.526577604   14.15 14.37     O7V 15 0
73 HD 270145 s*b 05 48 49.6513961040 -70 03 57.837376476 10.903 12.110 12.166     O6.5Iaf 48 1
74 HD 178487 * 19 09 14.8370902176 -10 13 03.934277760 8.04 8.78 8.69     O9.5/B0Ib/II 50 0
75 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2000 0
76 NAME Local Bubble ISM ~ ~           ~ 898 0

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