2002A&A...381..971H


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:26:20

2002A&A...381..971H - Astronomy and Astrophysics, volume 381, 971-981 (2002/1-3)

The accretion/diffusion theory for λ Bootis stars in the light of spectroscopic data.

HEITER U., WEISS W.W. and PAUNZEN E.

Abstract (from CDS):

Most of the current theories suggest the λ Bootis phenomenon to originate from an interaction between the stellar surface and its local environment. In this paper, we compare the abundance pattern of the λ Bootis stars to that of the interstellar medium and find larger deficiencies for Mg, Si, Mn and Zn than in the interstellar medium. A comparison with metal poor post-AGB stars showing evidence for circumstellar material indicates a similar physical process possibly being at work for some of the λ Bootis stars, but not for all of them. Despite the fact that the number of spectroscopically analysed λ Bootis stars has considerably increased in the past, a test of predicted effects with observations shows current abundance and temperature data to be still controversial.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: atmospheres - stars: chemically peculiar - stars: early-type - ISM: abundances

Simbad objects: 75

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Number of rows : 75

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 HD 319 PM* 00 07 46.9004138978 -22 30 30.805804687   6.055 5.923     A1VbmA2_lB 97 0
2 * gam Cas Be* 00 56 42.5317 +60 43 00.265 1.18 2.29 2.39 2.32 2.40 B0.5IVpe 1142 2
3 V* BD Phe dS* 01 50 54.4351104603 -50 12 22.093636860   6.080 5.929     F0VkA2mA2_lB 97 0
4 HD 15165 dS* 02 26 45.6479225723 +10 33 55.067355855   6.94 6.69     F0IV 86 0
5 HD 18100 * 02 53 40.8048620088 -26 09 20.426284938   8.23 8.44     B5II/III 88 0
6 HD 22586 * 03 35 38.0496863306 -52 33 23.928992053 6.93 7.85 8.03     B1/2III 63 0
7 * zet Per V* 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 816 0
8 * eps Per bC* 03 57 51.2320472 +40 00 36.775143 1.71 2.71 2.89 2.96 3.14 B1.5III 496 0
9 * ksi Per ** 03 58 57.9022917 +35 47 27.713205 3.190 4.080 4.060 3.88 3.89 O7.5III(n)((f)) 793 0
10 * pi.01 Ori PM* 04 54 53.7287660 +10 09 02.995200   4.723 4.648     A0Va_lB 242 0
11 * 23 Ori SB* 05 22 50.0047401166 +03 32 39.976975214 3.99 4.86 5.00 5.05 5.23 B2IV/V 232 0
12 * del Ori Al* 05 32 00.40009 -00 17 56.7424 0.96 2.02 2.41 2.32 2.54 B0III+O9V 745 0
13 * lam Ori A Em* 05 35 08.2792540686 +09 56 02.955355445 2.17 3.48 3.47     O8III((f)) 487 0
14 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 491 0
15 * iot Ori SB* 05 35 25.9819073 -05 54 35.643537 1.45 2.53 2.77     O9IIIvar 734 0
16 * eps Ori s*b 05 36 12.81335 -01 12 06.9089 0.48 1.51 1.69 1.76 1.93 B0Ia 860 0
17 * mu. Col V* 05 45 59.8953630749 -32 18 23.164726112 3.84 4.90 5.18 5.30 5.57 O9.5V 462 0
18 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1676 1
19 * kap Ori s*b 05 47 45.3888404 -09 40 10.577707 0.87 1.88 2.06 2.09 2.27 B0.5Ia 549 0
20 * bet CMa bC* 06 22 41.9853527 -17 57 21.307352 0.77 1.73 1.97 2.11 2.35 B1II-III 687 0
21 * 15 Mon Be* 06 40 58.65963 +09 53 44.7229 3.360 4.400 4.640   4.88 O7V+B1.5/2V 753 0
22 * tau CMa bL* 07 18 42.4864191 -24 57 15.741299 3.26 4.25 4.40 4.44 4.62 O9II 400 0
23 * gam02 Vel WR* 08 09 31.95013 -47 20 11.7108 0.64 1.58 1.83 1.85 2.00 WC8+O7.5III-V 848 0
24 HD 72089 * 08 29 06.9713197060 -45 33 26.962275140   7.93 8.02     B5II/III 36 0
25 * 50 Cnc PM* 08 46 56.0191877567 +12 06 35.830526746   5.992 5.885 7.20 5.76 A1Vp 82 0
26 V* HZ Vel dS* 08 49 52.3521085534 -39 08 29.770890153   6.602 6.368     A2/3II/III 65 0
27 HD 81290 Pe* 09 23 02.0653762536 -49 03 30.791826501   9.15 8.89     F4VkA3mA3_lB? 49 0
28 V* AK Ant dS* 09 34 56.5519422925 -28 52 39.330592954   9.10 8.79     F1VkA3mA3_lB? 53 0
29 HD 84123 PM* 09 44 06.8765461366 +42 03 03.131298842   7.135 6.838     A4III 50 0
30 HD 84948 SB* 09 50 05.8774942991 +49 04 31.750979246   8.42 8.12     F0 49 0
31 * rho Leo s*b 10 32 48.6716770 +09 18 23.709445 2.780 3.720 3.870 3.90 4.06 B1Iab 512 0
32 HD 93521 * 10 48 23.5116139485 +37 34 13.089937784 5.67 6.79 7.03     O9.5IIInn 404 1
33 HD 100340 * 11 32 49.9410910526 +05 16 36.236931573 8.906 9.881 10.115 10.219 10.353 B0 90 0
34 HD 101108 * 11 38 19.3665601704 +38 45 16.899688742   9.05 8.87     A5_lB 39 0
35 V* II Vir dS* 12 10 27.1883712510 -07 46 26.310983032   6.73 6.54     A3III 26 0
36 HD 106223 PM* 12 13 16.8985951261 +30 16 58.950109119 7.64 7.72 7.44     hF3VkA3mA3_lB 87 0
37 HD 107233 PM* 12 19 55.6449203485 -48 18 59.468148848   7.60 7.36     hF0VakA1mA1_lB 37 0
38 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5364 1
39 HD 109738 * 12 37 38.0629096186 -67 51 53.375811626   8.50 8.30     hA9VkA1mA1_lB 32 0
40 * rho Vir dS* 12 41 53.0567802922 +10 14 08.229084878 5.00 4.97 4.88 4.80 4.78 A0Va_lB 210 0
41 HD 111005 * 12 46 14.8232750824 +02 27 51.466749998   8.30 7.97     A9V 37 0
42 HD 116852 * 13 30 23.5190459533 -78 51 20.544585252 8.29 8.38 8.47     O8.5II-III((f)) 135 1
43 HD 120086 V* 13 47 19.1953158057 -02 26 36.615586193 6.92 7.65 7.82     B2IV 87 0
44 * lam Boo dS* 14 16 23.0187965 +46 05 17.900526 4.31 4.26 4.18 4.16 4.13 A0Va_lB 327 0
45 * b Sco * 15 50 58.7451174285 -25 45 04.662754169 3.84 4.552 4.635     B1.5Vn 271 0
46 V* HR Lib dS* 15 56 33.3735361896 -14 49 45.972376397   6.345 6.117     A2Ib/II 106 0
47 * pi. Sco bL* 15 58 51.1132378 -26 06 50.788602 1.82 2.71 2.91 3.00 3.20 B1V+B2:V: 377 0
48 * bet01 Sco SB* 16 05 26.2319826 -19 48 19.630018 1.68 2.55 2.62 2.60 2.69 B1V 535 0
49 * sig Sco bC* 16 21 11.3157134 -25 35 34.051476 2.32 3.02 2.89 1.69 1.58 O9.5(V)+B7(V) 830 0
50 V* V600 Her Ce* 16 36 58.2041650076 +14 28 30.910552466 5.87 6.845 7.028     B0.5III 153 0
51 NAME dze Oph Cloud Cld 16 37 09 -10 34.0           ~ 106 0
52 * zet Oph Be* 16 37 09.5390545 -10 34 01.529471 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1739 2
53 HD 154368 s*b 17 06 28.3687923960 -35 27 03.759955171 6.10 6.63 6.13 7.12   O9.5Iab 267 0
54 HD 156954 * 17 21 00.3553365771 -13 05 07.623145971   7.97 7.67     F0.5VkA9mA9 40 1
55 * gam Ara Be* 17 25 23.6593111 -56 22 39.814775 2.25 3.21 3.34     B1Ib 257 0
56 * lam Sco bC* 17 33 36.52012 -37 06 13.7648 0.52 1.48 1.62     B2IV+DA7.9 374 1
57 * gam Oph PM* 17 47 53.5597327 +02 42 26.199985 3.83 3.80 3.75 3.71 3.71 A1VnkA0mA0 361 0
58 HD 167756 * 18 18 40.1582210207 -42 17 18.223418445 5.18 6.143 6.290     B0Ia/ab 99 0
59 HD 169142 Ae* 18 24 29.7799676975 -29 46 49.328597698   8.42 8.16     F1VekA3mA3_lB? 344 2
60 V* V346 Pav dS* 18 25 31.6299481485 -63 01 17.532599707   6.313 6.122     A8VkA2mA2_lB 65 0
61 HD 170680 * 18 31 26.2981687662 -18 24 09.706451275   5.126 5.117     B9/9.5V 78 0
62 BD+21 3494B * 18 36 35.7186825418 +22 06 19.469836762     11.7     ~ 5 0
63 HD 171948 SB* 18 36 37.0231010931 +22 06 27.292508161   6.82 6.77     B9 32 1
64 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2524 0
65 * c Aql dS* 19 29 00.9870438377 +01 57 01.618441082   5.865 5.783     A0IVp 166 0
66 * b03 Cyg dS* 20 14 32.0319919055 +36 48 22.684605093 5.10 5.11 4.99 4.79 4.72 A2V 242 0
67 HD 193256 * 20 20 26.5741252340 -29 11 28.761537820   7.703 7.525 8.49   A8VnkA3mA3(_lB) 62 0
68 HD 193281 * 20 20 27.8805474206 -29 11 49.975108388   6.76 6.64 7.50   A2IV-V 91 0
69 CD-62 1338A PM* 20 51 38.5079641449 -62 25 45.594366275   6.35 6.21 6.55   A3IV(n) 69 0
70 CD-62 1338B PM* 20 51 38.8562507171 -62 25 45.255721251   6.74 6.56     A3III 33 0
71 HD 204041 PM* 21 25 51.5846178730 +00 32 03.619939380   6.593 6.450     A1Vb 95 0
72 HD 210111 dS* 22 08 42.6438955365 -33 07 32.498239929   6.564 6.386     A9VkA2mA2_lB 73 0
73 * pi. Aqr Be* 22 25 16.6228499 +01 22 38.634579 3.64 4.60 4.64 4.48 4.48 B1III-IVe 388 0
74 HD 215733 * 22 47 02.5068138209 +17 13 58.977841696 6.37 7.21 7.34     B1II 119 0
75 * 15 And dS* 23 34 37.5365247800 +40 14 11.179472901   5.652 5.563 6.91   A1Va 127 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-07:26:20

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