2000ApJS..126..399C

Query : 2000ApJS..126..399C

2000ApJS..126..399C - Astrophys. J., Suppl. Ser., 126, 399-426 (2000/February-0)

Spectroscopy and time variability of absorption lines in the direction of the Vela supernova remnant.

CHA A.N. and SEMBACH K.R.

Abstract (from CDS):

We present high-resolution (R~75,000), high signal-to-noise (S/N~100) Ca II λ3933.663 and Na I λλ5889.951, 5895.924 spectra of 68 stars in the direction of the Vela supernova remnant. The spectra comprise the most complete high-resolution, high S/N optical survey of early-type stars in this region of the sky. A subset of the sight lines has been observed at multiple epochs, 1993/1994 and 1996. Of the 13 stars observed twice, seven have spectra revealing changes in the equivalent width and/or velocity structure of lines, most of which arise from remnant gas. Such time variability has been reported previously for the sight lines toward HD 72089 and HD 72997 by Danks & Sembach and for HD 72127 by Hobbs and coworkers. We have confirmed the ongoing time variability of these spectra and present new evidence of variability in the spectra of HD 73658, HD 74455, HD 75309, and HD 75821. We have tabulated Na I and Ca II absorption-line information for the sight lines in our sample to serve as a benchmark for further investigations of the dynamics and evolution of the Vela SNR.

Abstract Copyright: ∼

Journal keyword(s): ISM: Clouds - ISM: Individual: Name: Vela Supernova Remnant - ISM: Kinematics and Dynamics - Line: Profiles - ISM: Supernova Remnants

Simbad objects: 81

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Number of rows : 81
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME GUM Nebula ISM 07 43 -42.1           ~ 454 1
2 NAME IRAS Vela Shell IR 07 44 -42.4           ~ 42 0
3 HD 63308 * 07 46 33.4348661568 -40 03 34.236592632 5.76 6.415 6.546     B2III 51 0
4 HD 63578 Y*O 07 47 31.5055471560 -46 36 30.563725932   5.053 5.208     B2III 104 0
5 HD 65814 * 07 58 50.4336026520 -40 20 34.648928304   9.05 8.77     B2III 9 0
6 Ass Vel OB 2 As* 08 09 22.478 -47 21 03.46           ~ 307 0
7 * gam01 Vel Y*O 08 09 29.3175369840 -47 20 43.013412312   3.995 4.173     B2III 158 0
8 HD 68217 Pu* 08 09 35.9137276680 -44 07 21.962716896   5.010 5.183     B2IV 77 0
9 V* IS Vel bC* 08 09 43.1541985440 -47 56 13.890437304 4.12 5.017 5.217     B2V 98 1
10 V* NO Vel SB* 08 13 36.1528771104 -46 59 29.862036384 4.32 4.981 5.127     B3III 90 0
11 HD 69302 ** 08 14 23.8746718618 -45 50 04.250534667 4.84 5.661 5.836     B2IV 82 0
12 HD 70309 * 08 19 05.5846724208 -48 11 52.269791604 5.67 6.30 6.44     B3III 52 0
13 * B Vel SB* 08 22 31.69411 -48 29 25.3631 3.83 4.67 4.82 4.86 4.99 B2III 90 0
14 NAME Pup A SNR 08 24 07 -42 59.8           ~ 636 1
15 HD 71302 ** 08 24 57.20672 -42 46 11.4071 5.29 5.90 6.02     B3V 67 0
16 HD 71459 * 08 25 51.9104833344 -42 09 11.070430416 4.71 5.27 5.42     B3/5IV 63 0
17 HD 71609 Pu* 08 26 38.1571034544 -43 24 30.947105448 7.26 7.89 7.82 8.76   B2/3II 54 0
18 HD 72014 Be* 08 28 52.0606957392 -42 35 14.916463440 5.22 6.408 6.588 7.51   B1/2(V)nne 68 0
19 * 33 Vel ** 08 29 04.75211 -47 55 44.1201           B1.5V+B4V 71 0
20 HD 72089 * 08 29 06.9713523240 -45 33 26.963586252   7.93 8.02     B5II/III 40 0
21 HD 72067 Be* 08 29 07.56710 -44 09 37.4914 4.99 5.67 5.84     B2/3V 108 0
22 HD 72088 * 08 29 12.6382293096 -44 53 05.519444712 8.62 9.10 9.07     B3III/IV 31 0
23 HD 72127B Y*O 08 29 27.4169386536 -44 43 24.758075856   6.821 6.976     B2.5V 16 0
24 HD 72127 ** 08 29 27.48346 -44 43 29.3236 4.04 4.95 5.15 6.59   B3III/IV 86 0
25 HD 72127A Pu* 08 29 27.485 -44 43 29.35   5.01 5.19     B2IIIk 19 0
26 HD 72179 * 08 29 37.7367266616 -44 05 57.919153164 7.48 8.02 8.14     B3/5II/III 28 0
27 HD 72232 * 08 29 45.6347536464 -46 19 54.115451688 5.27 5.838 5.969     B5III 52 0
28 HD 72350 SB* 08 30 39.2288732472 -44 44 14.346383532 5.80 6.26 6.29     B3IV 81 0
29 HD 72485 Pu* 08 31 10.6253806200 -47 51 59.831879076 5.57 6.223 6.373     B2/3V 62 0
30 HD 72555 Y*O 08 31 39.6446319360 -47 14 27.720018636   6.625 6.773     B2V 40 0
31 HD 72535 ** 08 31 47.529 -42 01 59.90   8.94 8.84 9.06   B2III 14 0
32 HD 72648 * 08 32 18.9890145000 -43 55 53.360572260 7.15 7.75 7.62     B3III(II) 62 0
33 HD 72800 * 08 32 53.7760055760 -47 36 19.849809528 6.45 6.700 6.599 7.63   B9Ib 39 0
34 HD 72798 * 08 33 01.8593584728 -45 45 10.456626816   6.229 6.354     B3III 39 0
35 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
36 V* V451 Vel EB* 08 34 08.1440482200 -44 32 41.397363780   7.28 7.46     B2II/III 42 0
37 HD 73326 * 08 36 02.2364091288 -46 30 05.874974424 6.5 7.231 7.272     B2III/IV 32 0
38 HD 73478 * 08 36 42.7480830504 -47 59 54.219174936   7.265 7.375     B3IV 23 0
39 HD 73658 Em* 08 37 39.9551938368 -46 16 57.745322112 6.20 6.89 6.86 7.75   B1Ib/II 57 0
40 HD 74194 HXB 08 40 47.7915253032 -45 03 30.235569624 7.05 7.77 7.55 8.70   O8.5Ib-II(f)p 220 0
41 HD 74234 * 08 40 53.3997843792 -48 13 31.819450188 5.942 6.777 6.926   6.725 B2IV 59 0
42 HD 74251 * 08 41 01.5722454696 -48 04 02.928003204   7.65 7.74     B3IV/V 39 0
43 HD 74273 bC? 08 41 05.3198654376 -48 55 21.652130928 4.77 5.695 5.879     B2III 96 0
44 HD 74319 * 08 41 34.9044234312 -44 59 30.890980968   6.576 6.685     B3V 30 0
45 HD 74371 s*b 08 41 56.9097314184 -45 24 38.562399648 4.94 5.378 5.227 6.75   B6Iab/b 98 0
46 HD 74436 SB* 08 42 07.5550200312 -48 14 40.801686432 7.952 8.244 9.827 9.155 8.171 B3V 44 0
47 HD 74455 ** 08 42 16.1925159528 -48 05 56.748130241 4.39 5.288 5.468 7.877 7.074 B2/3IV/V 125 0
48 HD 74531 * 08 42 34.8368708016 -48 09 48.916929528 6.21 7.08 7.23     B2(V) 53 0
49 HD 74530 * 08 42 36.5453576640 -48 04 30.865902780 8.048 8.439 8.504 8.653 8.600 B3IV/V 26 0
50 HD 74650 * 08 43 16.6648967472 -47 48 23.826654648   7.301 7.335     B9V 15 0
51 HD 74662 * 08 43 18.8006652552 -48 20 42.900493020   8.75 8.84     B3V 29 0
52 * D Vel bC? 08 43 40.2730174416 -49 49 22.082995200 3.93 4.96 5.16 6.76   B1/2II/III(n) 101 0
53 HD 74711 Pu* 08 43 47.5092392664 -46 47 56.368126716 6.49 7.156 7.111 8.26   B2III 47 0
54 HD 74773 * 08 44 09.7085822616 -47 06 57.977332992   7.112 7.218     B3IV 33 0
55 * del01 Vel ** 08 44 42.226383 -54 42 31.75567           A2IV+A4V 214 0
56 HD 74920 * 08 45 10.3405991688 -46 02 19.239667872 6.64 9.46 9.09 8.58   O7.5IVn((f)) 77 0
57 HD 74979 * 08 45 47.3992272096 -40 36 56.081214072 6.37 7.179 7.231     B2III 33 0
58 HD 75009 * 08 45 47.4875639424 -44 14 52.850960628   6.581 6.677     B8IV/V 25 0
59 HD 75129 * 08 46 19.4086038360 -47 32 59.562119868   7.076 6.866     B5Ib 27 0
60 HD 75149 s*b 08 46 30.5469120768 -45 54 45.019158300 5.25 5.677 5.459 6.77   B5Iab 115 0
61 HD 75241 * 08 47 05.3640566952 -45 04 29.094350340 5.91 6.475 6.592     B4IV 34 0
62 HD 75309 V* 08 47 27.9647002224 -46 27 03.958625664 7.05 7.82 7.84 8.77   B2Ib/II 81 0
63 Cl Trumpler 10 OpC 08 47 46.4 -42 31 52           ~ 203 0
64 HD 75387 * 08 48 08.7766833888 -42 27 48.412381248 5.43 6.24 6.42     B2V 65 0
65 HD 75534 * 08 48 44.7928114944 -47 45 48.129964596 7.69 8.93 8.95 8.68   B1/2Ib 40 0
66 HD 75608 * 08 49 21.2624330688 -43 22 14.401029684   7.365 7.454     B6V 24 0
67 Ass Vel OB 1 As* 08 49.9 -45 00           ~ 104 0
68 HD 75759 SB* 08 50 21.0167636904 -42 05 23.247034188 4.95 5.90 6.00 7.18   O9V+B0V 147 0
69 * f Vel SB* 08 50 33.4606230120 -46 31 45.075306720 3.92 4.90 5.11 5.20 5.36 B1Ib 165 0
70 HD 76004 * 08 51 50.0352140688 -44 09 03.353593392   6.216 6.350     B3V 40 0
71 NAME Vela Jr SN SNR 08 52.0 -46 20           ~ 507 2
72 HD 76161 bC? 08 52 38.6066911992 -48 21 32.717223072   5.749 5.889     B5V 59 0
73 NAME VELA MOL RIDGE MoC 08 53 -45.0           ~ 178 0
74 HD 76534 Be* 08 55 08.70673 -43 27 59.8852 7.04 7.62 7.50 8.94   B2Vn 142 0
75 HD 76566 * 08 55 19.2021546912 -45 02 30.024113964 5.47 6.10 6.26     B3IV 78 0
76 NAME Vela C Cld 08 57 -43.2           ~ 193 0
77 HD 76838 Be* 08 57 07.5515640336 -43 15 22.266109548 6.59 7.31 7.31     B2IV 72 0
78 NAME Vela R2 As* 09 00 -43.0           ~ 26 0
79 HD 77320 Be* 09 00 22.2552895536 -43 10 26.376862224 5.16 5.93 6.08 6.07 6.19 B2Vnn(e) 98 1
80 HD 78005 V* 09 04 05.7796138272 -47 26 29.214486996 5.64 6.290 6.438     B3IV/V 44 0
81 HD 79275 Pu* 09 11 33.3821694024 -46 35 02.077742148 4.7 5.575 5.769     B2III/IV 81 0

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