2003A&A...412..447G


Query : 2003A&A...412..447G

2003A&A...412..447G - Astronomy and Astrophysics, volume 412, 447-464 (2003/12-3)

The heterogeneous class of λ Bootis stars.

GERBALDI M., FARAGGIANA R. and LAI O.

Abstract (from CDS):

We demonstrate that it is arduous to define the λ Boo stars as a class of objects exhibiting uniform abundance peculiarities which would be generated by a mechanism altering the structure of their atmospheric layers. We collected the stars classified as λ Boo up to now and discuss their properties, in particular the important percentage of confirmed binaries producing composite spectra (including our adaptive optics observations) and of misclassified objects. The unexplained RV variables (and thus suspected binaries), the known SB for which we lack information on the companion, the stars with an UV flux inconsistent with their classification, and the fast rotating stars for which no accurate abundance analysis can be performed, are also reviewed.

Abstract Copyright:

Journal keyword(s): stars: atmospheres - stars: chemically peculiar - stars: binaries: spectroscopic

VizieR on-line data: <Available at CDS (J/A+A/412/447): table4.dat table5.dat>

Simbad objects: 137

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Number of rows : 137
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HD 225218 ** 00 04 36.58707 +42 05 33.1118 6.410 6.270 6.120     ~ 50 0
2 HD 3 * 00 05 09.7582686336 +45 13 44.510792196 6.840 6.770 6.710     A0Vn_lB 47 0
3 HD 319 PM* 00 07 46.8995868600 -22 30 30.805174800   6.055 5.923     A1VbmA2_lB 100 0
4 HD 2904 * 00 33 19.2656656224 +70 58 54.677413200 6.220 6.330 6.380     A0Vnn_lB 39 0
5 HD 4158 * 00 43 54.0507025992 -20 23 59.222823468   9.76 9.54     F2VkA1.5mA1.5_lB 37 0
6 HD 5789 * 01 00 03.5576514672 +44 42 47.691064620   6.01 6.05     B9.5Vnn_lB 55 1
7 HD 6173 * 01 03 29.8960694088 +50 32 15.681148332   8.65 8.52     A0IIIn 17 0
8 V* BS Tuc dS* 01 08 03.9681734664 -61 52 17.817500280   7.71 7.45     hF0mA1_lB 92 0
9 HD 7908 * 01 18 25.3734538512 -23 00 47.600538120   7.569 7.302     F0VmA3_lB 49 0
10 V* BD Phe dS* 01 50 54.4352128992 -50 12 22.092503544   6.080 5.929     F0VkA2mA2_lB 99 0
11 * gam02 Ari PM* 01 53 31.8129284424 +19 17 37.879979172   4.49 4.52     A2IVpSiSrCr 154 0
12 * gam01 Ari PM* 01 53 31.8192032943 +19 17 45.430793660   4.558 4.589 6.71   A0Vnp_lB 79 0
13 V* CV Phe dS* 02 12 47.0859332544 -44 29 20.456479752   8.11 7.83     F1VkA8mA8(_lB) 27 0
14 HD 15165 dS* 02 26 45.6478667280 +10 33 55.070566704   6.94 6.69     F0IV 89 0
15 HD 16955 * 02 43 51.2435867712 +25 38 18.050045172   6.46 6.39 7.45   A3V 37 0
16 HD 21335 ** 03 27 03.2348403240 +18 45 23.558435856   6.72 6.57     A3V 65 0
17 * 20 Eri a2* 03 36 17.4041095200 -17 28 01.472307996 4.61 5.10 5.23     B8/9III 170 0
18 HD 23258 * 03 44 28.2037966608 +20 55 43.448620908   6.100 6.074     A0Vp_lB 54 0
19 HD 23392 * 03 44 32.7248403456 -08 35 12.466693284   8.29 8.24     A0Va-_lB 27 0
20 HD 24472 * 03 52 49.7455748424 -22 16 34.602082932   7.40 7.10     A9V 37 0
21 HD 26801 * 04 18 11.0180496528 +61 54 45.248411952   7.72 7.72     B9 16 0
22 V* EX Eri dS* 04 46 25.7495143440 -28 05 14.805163104   6.347 6.173     A7VkA3mA3 112 0
23 * pi.02 Ori * 04 50 36.7229825 +08 54 00.649333 4.39 4.36 4.35 4.29 4.29 A1Vn 168 0
24 * pi.01 Ori PM* 04 54 53.7287660 +10 09 02.995200   4.723 4.648     A0Va_lB 249 0
25 * 16 Cam PM* 05 23 27.8426747304 +57 32 39.837146280 5.150 5.230 5.250   5.23 A0Vne 60 0
26 V* V1649 Ori dS* 05 23 31.0655908752 +05 19 23.111389848   6.455 6.334     hA3VamA1_lB 43 0
27 HD 290492 ** 05 31 18.752 -00 29 24.24   9.47 9.39     A0 22 0
28 HD 36726 * 05 33 51.7278163992 -00 04 36.342051096   8.91 8.82     hA5VkA0mA0_lB 38 1
29 HD 294253 * 05 36 41.7835166016 -03 30 12.476798712   9.68 9.67     A0 28 0
30 HD 36496 ** 05 37 16.0241407 +66 41 48.090148 6.550 6.500 6.290     A8Vn 53 1
31 HD 37411 Or* 05 38 14.5072831944 -05 25 13.301118588 10.03 9.91 9.79 9.60 9.45 hA3VakA0mA0(eb)_lB 88 0
32 V* V1790 Ori dS* 05 40 24.2915301336 -00 46 16.753504332   10.8 10.8     A0 28 0
33 HD 37886 * 05 41 32.0065124640 -02 58 26.602064364   8.956 8.979 9.67 9.51 B8III 30 0
34 * 131 Tau ** 05 47 13.1536316 +14 29 17.967416   5.785 5.721     A3Vn 98 0
35 HD 39421 * 05 52 07.7290666608 -09 02 30.844893552   6.045 5.960     A0V 56 0
36 * ksi Aur * 05 54 50.7669372792 +55 42 25.080150456   5.005 4.960     A2V 117 0
37 HD 41580 * 06 06 28.0434611568 +10 45 01.012449456   7.13 7.19     A0 26 0
38 * 53 Aur ** 06 38 23.0105318280 +28 59 03.615135864   5.761 5.744     B9Mn+F0m 132 0
39 HD 261904 Y*O 06 41 00.6874797312 +09 24 11.888973612   10.38 9.50     A0/1 38 0
40 HD 54272 RR* 07 08 53.8545016128 +19 19 38.067508596   9.02 8.77     A5 19 0
41 HD 56405 * 07 16 14.5526564520 -15 35 08.486158380   5.519 5.447     A1V 71 0
42 V* DD Lyn dS* 07 55 40.8273346368 +35 24 45.653471280   6.478 6.221     A3p 68 0
43 HD 66684 ** 08 05 37.05577 +27 31 47.0419   6.22 6.21     B9.5Vp_lB+A0Vnp 43 0
44 * 50 Cnc PM* 08 46 56.0189914848 +12 06 35.830080180   5.992 5.885 7.20 5.76 A1Vp 87 0
45 V* HZ Vel dS* 08 49 52.3521972168 -39 08 29.771430000   6.602 6.368     A2/3II/III 67 0
46 HD 79108 PM* 09 12 12.8807934720 +03 52 01.121272932   6.127 6.131     A0V 72 0
47 HD 81290 Pe* 09 23 02.0651900592 -49 03 30.794478948   9.15 8.89     F4VkA3mA3_lB? 52 0
48 * 21 UMa ** 09 25 37.84525 +54 00 57.3021           A2Vnp 20 0
49 V* AK Ant dS* 09 34 56.5518460560 -28 52 39.334572984   9.10 8.79     F1VkA3mA3_lB? 57 0
50 HD 83277 Pe* 09 36 31.8232900848 -27 57 45.149470020   8.57 8.29     F2VkA3mA3_lB? 41 0
51 HD 84123 PM* 09 44 06.8766339648 +42 03 03.128528304   7.135 6.838     A4III 53 0
52 HD 84948 SB* 09 50 05.8773671472 +49 04 31.750535568   8.42 8.12     F0 52 0
53 V* GM Leo dS* 10 04 08.3785722672 +11 37 42.647835324 7.330 7.310 7.130     A0 37 0
54 * 21 LMi dS* 10 07 25.7629578 +35 14 40.896470 4.74 4.67 4.49 4.31 4.24 A7V(n) 220 0
55 HD 89353 pA* 10 18 07.5899342712 -28 59 31.195183524   5.76 5.53     B9.5Ib/II 296 0
56 HD 89239 * 10 18 10.5145865688 +27 24 55.723836672   6.498 6.523     A0V 68 0
57 HD 90821 * 10 29 37.0986897144 +26 10 58.569963240   9.54 9.45     F0 19 0
58 * 33 LMi * 10 31 51.3753968952 +32 22 46.405276428   6.001 5.905     A0Va- 67 0
59 HD 97773 ** 11 15 28.69772 +47 28 46.1881   7.79 7.55     A5 37 0
60 HD 97937 PM* 11 15 57.8025884928 +12 50 41.281142424   6.934 6.645     F0V 44 0
61 * 55 UMa SB* 11 19 07.8861142632 +38 11 08.135935332   4.90 4.80     A2V 129 0
62 HD 98772 * 11 22 51.2436595560 +64 19 49.841322096 6.180 6.110 6.030     A3V 55 0
63 HD 101108 * 11 38 19.3666459704 +38 45 16.889006304   9.05 8.87     A5_lB 40 0
64 V* V1023 Cen dS* 11 47 59.7575640552 -40 17 29.472275436   8.18 7.94     A9VkA5mA5(_lB) 32 0
65 HD 105058 dS* 12 05 43.3556676096 +49 40 55.994662056   9.05 8.88     A2p 60 0
66 V* II Vir dS* 12 10 27.1880699112 -07 46 26.311095696   6.73 6.54     A3III 28 0
67 HD 106223 PM* 12 13 16.8983653416 +30 16 58.946364228 7.64 7.72 7.44     hF3VkA3mA3_lB 88 0
68 HD 107233 PM* 12 19 55.6448625816 -48 18 59.471119476   7.60 7.36     hF0VakA1mA1_lB 40 0
69 * 14 Com * 12 26 24.0644226936 +27 16 05.659806648 5.40 5.22 4.95 4.70 4.55 F1IV:npS_sh 157 0
70 HD 109738 * 12 37 38.0633553648 -67 51 53.379084672   8.50 8.30     hA9VkA1mA1_lB 34 0
71 * 9 CVn * 12 38 46.2769175928 +40 52 28.787416500   6.547 6.352     A6Vp_lB 44 0
72 * 27 Vir dS* 12 41 34.3919383824 +10 25 34.568504040   6.408 6.215     A6Vp 67 0
73 * rho Vir dS* 12 41 53.0569475088 +10 14 08.252569320 5.00 4.97 4.88 4.80 4.78 A0Va_lB 218 0
74 HD 111005 * 12 46 14.8230470856 +02 27 51.461399556   8.30 7.97     A9V 41 0
75 V* DT CVn dS* 12 50 10.7400521424 +37 31 00.979591260   6.025 5.872     A5Vp_lB 93 0
76 V* MO Hya dS* 12 51 57.8968126608 -26 44 17.772380448   6.358 6.141     F0VkA1mA1_lB 119 0
77 * 41 Vir PM* 12 53 49.7172100776 +12 25 06.220936056   6.522 6.241     kA7hF0mF0(V) 80 0
78 * 25 CVn ** 13 37 27.62782 +36 17 41.6337   5.05 4.82     A7III+A8V: 143 0
79 V* FQ Boo dS* 13 49 44.1554383104 +08 24 31.089742272   6.717 6.604     hA5VkA2mA2_lB 45 0
80 V* QT Vir dS* 13 52 09.3005176752 +06 00 04.845199464   8.76 8.51     hF0VkA6mA6_lB 27 0
81 * lam Boo dS* 14 16 23.0187965 +46 05 17.900526 4.31 4.26 4.18 4.16 4.13 A0Va_lB 338 0
82 HD 125489 ** 14 19 40.9504184928 +00 23 03.603726852   6.377 6.179     A7Vn 50 0
83 HD 125889 * 14 23 15.7478244192 -35 49 55.028871732   10.08 9.81     F1VkA4mA4(_lB?) 20 0
84 * 55 Hya * 14 47 22.5556927680 -25 37 27.359626548   5.562 5.609     B9IV/V 74 0
85 HD 130767 * 14 49 28.7085118464 +19 30 37.316208276   6.94 6.90   6.85 A0Va_lB 29 0
86 * tau02 Ser * 15 32 09.6750062424 +16 03 22.209057684   6.184 6.216     B9V 58 0
87 * b Ser ** 15 51 15.5941805 -03 05 25.793806   5.23 5.10     A2IV-Vn 108 0
88 V* HR Lib dS* 15 56 33.3736378344 -14 49 45.972944112   6.345 6.117     A2Ib/II 112 0
89 V* IN Lup dS* 15 59 10.9039194264 -38 44 54.944322756   7.46 7.17     F2VkA3mA3_lB? 48 0
90 * 11 Sco * 16 07 36.4153307712 -12 44 43.464533568   5.77 5.77     B9V 57 0
91 HD 149303 * 16 31 47.2275879216 +45 35 53.744910612 5.850 5.78 5.68 7.16   A2Vn_lB 60 0
92 V* NP TrA dS* 16 33 05.1553102248 -60 54 12.847834764   8.09 7.90     A2IVn 26 0
93 HD 149130 * 16 36 38.5933961280 -62 38 52.607719104   8.79 8.48     A8w 34 0
94 * eps Her SB* 17 00 17.3737789 +30 55 35.056489 3.80 3.91 3.92 3.93 3.97 A0V 165 0
95 HD 153747 dS* 17 02 53.8269014280 -38 27 36.818859204   7.54 7.42     A7VkA0mA0_lB 53 1
96 HD 154153 * 17 05 48.4627188912 -44 06 18.186019740   6.450 6.178     F1VkA3mA3_lB? 55 1
97 HD 156954 * 17 21 00.3553285752 -13 05 07.621955772   7.97 7.67     F0.5VkA9mA9 43 1
98 HD 159082 SB* 17 32 14.8801753080 +11 55 48.177391296 6.260 6.440 6.450     B9.5V 86 0
99 HD 160928 ** 17 44 42.0095149680 -42 43 45.550054236   6.027 5.871     A3IVn 39 1
100 * phi Dra a2* 18 20 45.43224 +71 20 16.1499   4.15 4.22     B8V 188 0
101 HD 169009 * 18 23 02.1094394400 -10 13 08.238885060   6.443 6.313     B9III 51 0
102 * eps Sgr PM* 18 24 10.31840 -34 23 04.6193   1.82 1.81     B9IVp_lB? 204 0
103 V* V704 CrA dS* 18 24 30.0555469896 -44 11 56.681839752   8.35 8.11     F0VkA3mA3_lB 24 0
104 V* V346 Pav dS* 18 25 31.6299933048 -63 01 17.529458664   6.313 6.122     A8VkA2mA2_lB 68 0
105 HD 170680 * 18 31 26.2978449720 -18 24 09.713977668   5.126 5.117     B9/9.5V 80 0
106 HD 171948 SB* 18 36 37.0229804112 +22 06 27.294803964   6.82 6.77     B9 34 1
107 HD 174005 * 18 48 39.4931934120 -06 00 15.524947980   6.717 6.494     A7VkA2mA2_lB 32 0
108 HD 175445 * 18 55 33.2829853224 -02 18 23.649417144   7.90 7.79     A2Va 19 1
109 HD 177120 * 19 04 14.19485 -22 53 47.4664           A1III-IV(e) 18 0
110 * lam Aql PM* 19 06 14.9386542192 -04 52 57.225885348 3.07 3.34 3.43 3.46 3.55 B8.5V 216 0
111 HD 179791 V* 19 13 44.0319885648 +05 30 56.198549232 6.69 6.58 6.49     A3V 51 0
112 * c Aql dS* 19 29 00.9869402808 +01 57 01.616825124   5.865 5.783     A0IVp 174 0
113 HD 184190 * 19 34 55.2809531856 -39 47 26.248329312   10.02 9.74     A7/9s(w) 17 0
114 HD 184779 * 19 37 59.4732643224 -43 54 28.031912172   9.17 8.90     F0VkA5mA5(_lB) 27 0
115 HD 191850 V* 20 13 54.5079591960 -46 33 23.192406180   9.87 9.69 9.6 10.953 A9VkA3mA3_lB 30 0
116 HD 192424 ** 20 14 04.531 +22 13 21.56           A0 25 0
117 * b03 Cyg dS* 20 14 32.0323540824 +36 48 22.700909124 5.10 5.11 4.99 4.79 4.72 A2V 246 0
118 IDS 20132+3923 AB ** 20 16 48.53244 +39 41 50.3589   7.68 7.73     B9V 22 0
119 HD 193256 * 20 20 26.5730016024 -29 11 28.700728368   7.703 7.525 8.49   A8VnkA3mA3(_lB) 62 0
120 HD 193281 * 20 20 27.8803232880 -29 11 49.972752276   6.76 6.64 7.50   A2IV-V 94 0
121 HD 196821 V* 20 39 10.6488328200 +21 49 02.792407836   6.027 6.075     A0III 53 0
122 CD-62 1338A PM* 20 51 38.5075523160 -62 25 45.585188364   6.35 6.21 6.55   A3IV(n) 69 0
123 CD-62 1338B PM* 20 51 38.8562846352 -62 25 45.255818352   6.74 6.56     A3III 33 0
124 HD 200841 * 21 04 42.6234504936 +41 00 28.774035000   8.33 8.28     A 20 0
125 HD 204041 PM* 21 25 51.5848015320 +00 32 03.634403820   6.593 6.450     A1Vb 100 0
126 HD 204965 * 21 30 20.3307128760 +52 57 28.784301300   6.079 6.007     A3V 32 0
127 HD 210111 dS* 22 08 42.6440819592 -33 07 32.494799028   6.564 6.386     A9VkA2mA2_lB 75 0
128 * tet Peg PM* 22 10 11.9852752 +06 11 52.307750 3.72 3.62 3.55 3.50 3.46 A1Va 175 0
129 HD 212150 * 22 18 20.4356149776 +76 29 16.881679608 6.550 6.640 6.630     A1Vn 31 0
130 * 9 Lac PM* 22 37 22.4172656 +51 32 42.438341 4.98 4.87 4.63 4.41 4.27 A9VkA7mA6 75 0
131 HD 216847 * 22 57 22.0095354336 -56 52 30.696690864   7.29 7.06     A7V 28 0
132 * 2 And ** 23 02 36.38176 +42 45 28.0628           A1V 163 0
133 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1023 0
134 * tau Peg dS* 23 20 38.2462291728 +23 44 25.278232056   4.745 4.580     A5Vp_lB 178 0
135 * 97 Aqr ** 23 22 39.17113 -15 02 21.6245   5.43 5.22     A3V 105 0
136 * 15 And dS* 23 34 37.5368337288 +40 14 11.182658856   5.652 5.563 6.91   A1Va 129 0
137 * del Scl PM* 23 48 55.54658 -28 07 48.9745 4.55 4.58 4.57 4.53 4.55 A0VankB9((_lB)) 138 0

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2022.05.28-23:06:29

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