1999A&A...349..521F

Query : 1999A&A...349..521F

1999A&A...349..521F - Astronomy and Astrophysics, volume 349521-531 (1999/9-2)

How many λ Bootis stars are binaries?

FARAGGIANA R. and BONIFACIO P.

Abstract (from CDS):

In the attempt to shed new light on the λ Boo phenomenon we analyzed the astrometric, photometric and spectroscopic characteristics of stars out of a list of recently selected λ Boo candidates. We show that the class is still ill-defined and discuss the possibility that some, if not most stars presently classified as λ Boo, are in fact binary pairs and that peculiar abundances may not correspond to actual values if the average values of the atmospheric parameters Teff and logg are assumed and the effect of veiling is not taken into account.

Abstract Copyright: ∼

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

Simbad objects: 89

goto View the references in ADS

Number of rows : 89
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 HD 225218 SB* 00 04 36.5845256345 +42 05 33.080174481 6.410 6.28 6.14 7.30   A3Vs 57 0
2 HD 3 * 00 05 09.7582686336 +45 13 44.510792196 6.840 6.770 6.710     A0Vn_lB 53 0
3 HD 319 PM* 00 07 46.8995868600 -22 30 30.805174800   6.055 5.923     A1VbmA2_lB 112 0
4 HD 2904 * 00 33 19.2656656224 +70 58 54.677413200 6.220 6.330 6.380     A0Vnn_lB 48 0
5 HD 4158 * 00 43 54.0507025992 -20 23 59.222823468   9.76 9.54     F2VkA1.5mA1.5_lB 41 0
6 HD 5789 * 01 00 03.5576514672 +44 42 47.691064620   6.01 6.05     B9.5Vnn_lB 60 0
7 V* BS Tuc dS* 01 08 03.9681734664 -61 52 17.817500280   7.71 7.45     hF0mA1_lB 100 0
8 V* BD Phe dS* 01 50 54.4352128992 -50 12 22.092503544   6.080 5.929     F0VkA2mA2_lB 110 0
9 * gam02 Ari PM* 01 53 31.8129284424 +19 17 37.879979172   4.49 4.52     A2IVpSiSrCr 162 0
10 * 20 Eri a2* 03 36 17.4041095200 -17 28 01.472307996 4.61 5.10 5.23     B8/9III 181 0
11 HD 23258 * 03 44 28.2037966608 +20 55 43.448620908   6.100 6.074     A0Vp_lB 60 0
12 HD 23392 * 03 44 32.7248403456 -08 35 12.466693284   8.29 8.24     A0Va-_lB 30 0
13 V* EX Eri dS* 04 46 25.7495143440 -28 05 14.805163104   6.347 6.173     A7VkA3mA3 125 0
14 * pi.02 Ori * 04 50 36.7224881321 +08 54 00.652210041 4.39 4.36 4.35 4.29 4.29 A1Vn 193 0
15 * pi.01 Ori PM* 04 54 53.7280989194 +10 09 03.003446941   4.723 4.648     A0Va_lB 268 0
16 * 16 Cam PM* 05 23 27.8426747304 +57 32 39.837146280 5.150 5.230 5.250   5.23 A0Vne 67 0
17 HD 290492 ** 05 31 18.76416 -00 29 24.1404   9.648 9.625 9.878   kA1hA6mA4 28 0
18 HD 36726 * 05 33 51.7278163992 -00 04 36.342051096   8.91 8.82     hA5VkA0mA0_lB 47 1
19 HD 294253 HS* 05 36 41.7835166016 -03 30 12.476798712   9.675 9.637 9.974   A0VakB8.5mB9(_lB) 40 1
20 V* V1790 Ori dS* 05 40 24.2915301336 -00 46 16.753504332   10.8 10.8     A0 38 0
21 * 131 Tau ** 05 47 13.1536316 +14 29 17.967416   5.785 5.721     A3Vn 108 0
22 HD 39421 * 05 52 07.7290666608 -09 02 30.844893552   6.045 5.960     A0V 63 0
23 * 53 Aur ** 06 38 23.0105318280 +28 59 03.615135864   5.761 5.744     B9Mn+F0m 139 0
24 V* DD Lyn dS* 07 55 40.8273346368 +35 24 45.653471280   6.478 6.221     A3p 78 0
25 HD 66684 ** 08 05 37.05577 +27 31 47.0419   6.22 6.21     B9.5Vp_lB+A0Vnp 47 0
26 * 50 Cnc PM* 08 46 56.0189914848 +12 06 35.830080180   5.992 5.885 7.20 5.76 A1Vp 99 0
27 HD 75654 dS* 08 49 52.3521972168 -39 08 29.771430000   6.602 6.368     A2/3II/III 78 0
28 HD 79108 PM* 09 12 12.8807934720 +03 52 01.121272932   6.127 6.131     A0V 78 0
29 HD 81290 Pe* 09 23 02.0651900592 -49 03 30.794478948   9.15 8.89     F4VkA3mA3_lB? 58 0
30 V* AK Ant dS* 09 34 56.5518460560 -28 52 39.334572984   9.10 8.79     F1VkA3mA3_lB? 64 0
31 HD 84123 PM* 09 44 06.8766339648 +42 03 03.128528304   7.135 6.838     A4III 59 0
32 HD 84948 SB* 09 50 05.8773671472 +49 04 31.750535568   8.42 8.12     F0 59 0
33 * 21 LMi dS* 10 07 25.7623702826 +35 14 40.905120440 4.74 4.67 4.49 4.31 4.24 A7V(n) 234 0
34 HD 89239 Em* 10 18 10.5145865688 +27 24 55.723836672   6.498 6.523     A2VmB9.5p_lB 77 0
35 HD 90821 * 10 29 37.0986897144 +26 10 58.569963240   9.54 9.45     F0 20 0
36 * 33 LMi Em* 10 31 51.3753968952 +32 22 46.405276428   6.001 5.905     A0Va- 77 0
37 HD 98772 * 11 22 51.2436595560 +64 19 49.841322096 6.180 6.110 6.030     A3V 62 0
38 HD 101108 * 11 38 19.3666459704 +38 45 16.889006304   9.05 8.87     A5_lB 45 0
39 HD 105058 dS* 12 05 43.3556676096 +49 40 55.994662056   9.05 8.88     A2IV 67 0
40 V* II Vir dS* 12 10 27.1880699112 -07 46 26.311095696   6.73 6.54     A3III 33 0
41 HD 106223 Em* 12 13 16.8983653416 +30 16 58.946364228 7.64 7.72 7.44     hF3VkA3mA3_lB 94 0
42 HD 107233 PM* 12 19 55.6448625816 -48 18 59.471119476   7.60 7.36     F0VkA3mA2_lB 47 0
43 * 14 Com * 12 26 24.0644226936 +27 16 05.659806648 5.40 5.22 4.95 4.70 4.55 F1IV:npS_sh 167 0
44 HD 109738 * 12 37 38.0633553648 -67 51 53.379084672   8.50 8.30     hA9VnkA0mA0_lB 39 0
45 * 9 CVn * 12 38 46.2769175928 +40 52 28.787416500   6.547 6.352     A6Vp_lB 51 0
46 * 27 Vir dS* 12 41 34.3919383824 +10 25 34.568504040   6.408 6.215     A6Vp 77 0
47 * rho Vir dS* 12 41 53.0569475088 +10 14 08.252569320 5.00 4.97 4.88 4.80 4.78 A0Va_lB 232 0
48 V* DT CVn dS* 12 50 10.7400521424 +37 31 00.979591260   6.025 5.872     A5Vp_lB 101 0
49 V* MO Hya dS* 12 51 57.8968126608 -26 44 17.772380448   6.358 6.141     F0VkA1mA1_lB 139 0
50 * 41 Vir PM* 12 53 49.7172100776 +12 25 06.220936056   6.522 6.241     kA7hF0mF0(V) 92 0
51 * 25 CVn ** 13 37 27.62782 +36 17 41.6337           A7III+A8V: 150 0
52 V* FQ Boo dS* 13 49 44.1554383104 +08 24 31.089742272   6.717 6.604     hA5VkA2mA2_lB 51 0
53 * lam Boo dS* 14 16 23.0184083839 +46 05 17.895459693 4.31 4.26 4.18 4.16 4.13 A0Va_lB 362 0
54 HD 125489 ** 14 19 40.9504184928 +00 23 03.603726852   6.377 6.179     A7Vn 57 0
55 * 55 Hya * 14 47 22.5556927680 -25 37 27.359626548   5.562 5.609     B9IV/V 83 0
56 * tau02 Ser * 15 32 09.6750062424 +16 03 22.209057684   6.184 6.216     B9V 66 0
57 * b Ser ** 15 51 15.5919760102 -03 05 25.822526196   5.23 5.10     A2IV-Vn 121 0
58 V* HR Lib dS* 15 56 33.3736378344 -14 49 45.972944112   6.345 6.117     F1VskA1.5mA1.5_lB 127 0
59 V* IN Lup dS* 15 59 10.9039194264 -38 44 54.944322756   7.46 7.17     F2VkA3mA3_lB? 51 0
60 * 11 Sco * 16 07 36.4153307712 -12 44 43.464533568   5.77 5.77     B9V 62 0
61 HD 149303 * 16 31 47.2275879216 +45 35 53.744910612 5.850 5.78 5.68 7.16   A2Vn_lB 69 0
62 * eps Her SB* 17 00 17.3733587483 +30 55 35.055213817 3.80 3.91 3.92 3.93 3.97 A0V 177 0
63 HD 156954 * 17 21 00.3553285752 -13 05 07.621955772   7.97 7.67     F0.5VkA9mA9 49 1
64 HD 159082 SB* 17 32 14.8801753080 +11 55 48.177391296 6.260 6.440 6.450     B9.5V 94 0
65 HD 160928 ** 17 44 42.0095149680 -42 43 45.550054236   6.027 5.871     A3IVn 47 0
66 * phi Dra a2* 18 20 45.43224 +71 20 16.1499   4.15 4.22     B8V 200 0
67 HD 169009 * 18 23 02.1094394400 -10 13 08.238885060   6.443 6.313     B9III 57 0
68 HD 168740 dS* 18 25 31.6299933048 -63 01 17.529458664   6.313 6.122     A8VkA2mA2_lB 78 0
69 HD 170680 * 18 31 26.2978449720 -18 24 09.713977668   5.126 5.117     B9/9.5V 87 0
70 HD 171948 SB* 18 36 37.0229804112 +22 06 27.294803964   6.82 6.77     B9 40 1
71 HD 177120 ** 19 04 14.19485 -22 53 47.4664           A1III-IV(e) 21 0
72 * lam Aql PM* 19 06 14.9386542192 -04 52 57.225885348 3.07 3.34 3.43 3.46 3.55 B8.5V 234 0
73 * c Aql dS* 19 29 00.9869402808 +01 57 01.616825124   5.865 5.783     A0IVp 188 0
74 HD 184190 * 19 34 55.2809531856 -39 47 26.248329312   10.02 9.74     A7/9s(w) 20 0
75 HD 184779 * 19 37 59.4732643224 -43 54 28.031912172   9.17 8.90     F0VkA5mA5(_lB) 28 0
76 HD 192424A * 20 14 04.5288848660 +22 13 21.532093379   7.92 7.88     A0 29 0
77 * b03 Cyg dS* 20 14 32.0323540824 +36 48 22.700909124 5.10 5.11 4.99 4.79 4.72 A2V 284 0
78 HD 193256 * 20 20 26.5730016024 -29 11 28.700728368   7.703 7.525 8.49   A8VnkA3mA3(_lB) 67 0
79 HD 193281 * 20 20 27.8803232880 -29 11 49.972752276   6.76 6.64 7.50   A2IV-V 105 0
80 HD 196821 V* 20 39 10.6488328200 +21 49 02.792407836   6.027 6.075     A0III 59 0
81 CD-62 1338A PM* 20 51 38.5075523160 -62 25 45.585188364   6.35 6.21 6.55   A3IV(n) 74 0
82 CD-62 1338B PM* 20 51 38.8562846352 -62 25 45.255818352   6.74 6.56     A3III 38 0
83 HD 204041 PM* 21 25 51.5848015320 +00 32 03.634403820   6.593 6.450     A1Vb 114 0
84 HD 210111 dS* 22 08 42.6440819592 -33 07 32.494799028   6.564 6.386     A9VkA2mA2_lB 88 0
85 HD 212150 * 22 18 20.4356149776 +76 29 16.881679608 6.550 6.640 6.630     A1Vn 36 0
86 * 9 Lac PM* 22 37 22.4179184437 +51 32 42.435680257 4.98 4.87 4.63 4.41 4.27 A9VkA7mA6 83 0
87 * tau Peg dS* 23 20 38.2462291728 +23 44 25.278232056   4.745 4.580     A5Vp_lB 189 0
88 * 15 And dS* 23 34 37.5368337288 +40 14 11.182658856   5.652 5.563 6.91   A1Va 141 0
89 * del Scl PM* 23 48 55.5462353347 -28 07 48.976490953 4.55 4.58 4.57 4.53 4.55 A0VankB9((_lB)) 149 0

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