2009A&A...506..213N


Query : 2009A&A...506..213N

2009A&A...506..213N - Astronomy and Astrophysics, volume 506, 213-233 (2009/10-4)

Abundance analysis of prime B-type targets for asteroseismology. II. B6-B9.5 stars in the field of view of the CoRoT satellite.

NIEMCZURA E., MOREL T. and AERTS C.

Abstract (from CDS):

The main goal of the ground-based seismology support program for the CoRoT mission was to obtain photometric and spectroscopic data for stars in the fields monitored by the satellite. These ground-based observations were collected in the GAUDI archive. High-resolution spectra of more than 200 B-type stars are available in this database, and about 45% of them is analysed here. To derive the effective temperature of the stars, we used photometric indices. Surface gravities were obtained by comparing observed and theoretical Balmer line profiles. To determine the chemical abundances and rotational velocities, we used a spectrum synthesis method, which consisted of comparing the observed spectrum with theoretical ones based on the assumption of LTE. Atmospheric parameters, chemical abundances, and rotational velocities were determined for 89 late-B stars. The dominant species in their spectra are iron-peak elements. The average Fe abundance is 7.24±0.45dex. The average rotational velocity is 126km/s, but there are 13 and 20 stars with low and moderate Vsin i values, respectively. The analysis of this sample of 89 late B-type stars reveals many chemically peculiar (CP) stars. Some of them were previously known, but at least 9 new CP candidates, among which at least two HgMn stars, are identified in our study. These CP stars as a group exhibit Vsin i values lower than the stars with normal surface chemical composition.

Abstract Copyright:

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

VizieR on-line data: <Available at CDS (J/A+A/506/213): table1.dat refs.dat table2.dat table3.dat>

Simbad objects: 93

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Number of rows : 93
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 HD 2000 * 00 24 06.0370026096 -43 12 12.144389976   9.51 9.15     F3V 10 0
2 HD 2003 * 00 24 43.2451243656 +65 48 26.742540924   9.31 8.81     G0 3 0
3 HD 42677 * 06 11 56.1484138032 -01 19 25.095498240   7.80 7.79     B9III/IV 12 0
4 HD 43406 V* 06 16 13.8652357680 +05 06 50.992113456 6.800 7.090 7.150     B9 20 0
5 HD 43461 * 06 16 21.0768716712 +01 04 49.252779120   6.550 6.614     B5III 37 0
6 HD 43743 * 06 17 58.6841302296 +00 13 29.103347676   7.69 7.71     B9V 14 0
7 HD 44321 * 06 20 58.2775353984 -06 41 31.086311748   7.59 7.64     B9IV/V 13 1
8 HD 44354 * 06 21 20.2972713024 -01 13 14.674720836   7.47 7.57     B8III 14 0
9 HD 44720 * 06 23 06.1112176752 -03 30 56.795889060   7.072 7.188     B5V 19 0
10 HD 44948 ** 06 24 33.9360553713 -01 25 05.598044253 6.19         ApSi 25 0
11 HD 45050 ** 06 25 18.4798574880 +01 30 05.452636068   6.629 6.661     B9/9.5IV 45 1
12 HD 45153 * 06 25 38.9224990680 -04 49 56.266617936   7.23 7.30     B8/9V 23 0
13 HD 45397 ** 06 27 09.18175 +00 08 06.0985   7.76 7.81     B9III/IV 11 0
14 NGC 2232 OpC 06 27 33 -04 44.9           ~ 167 0
15 HD 45515 * 06 27 45.4018338864 -02 39 35.389640520   7.83 7.82     B9V 13 0
16 HD 45516 * 06 27 47.6163029448 -04 49 28.967702592   7.75 7.79     B8V 28 0
17 V* V682 Mon a2* 06 28 10.7659506576 -04 53 56.511231684   7.85 7.97     ApSi 88 0
18 HD 45563 * 06 28 16.7675500392 +01 54 45.642111408   6.403 6.450     B9IV 48 1
19 HD 45657 * 06 28 39.5350522968 -03 47 04.250838552   7.86 7.87     B9V 12 0
20 HD 45709 * 06 28 42.9052563888 -06 58 12.141485688   7.49 7.54     B9V 11 0
21 HD 45760 * 06 29 26.5020183672 +04 15 11.698812252   7.57 7.55     A0V 15 0
22 HD 45975 Pe* 06 30 27.4667814912 -04 41 48.589487376   7.398 7.458     B8V 35 0
23 HD 46138 * 06 31 44.8577369544 +02 00 58.929803964   7.38 7.45     B8V 12 1
24 HD 46179 ** 06 32 07.1393096040 +06 02 08.278506528   6.659 6.706     B9V 34 0
25 NGC 2244 OpC 06 32 11 +04 54.8           ~ 608 1
26 HD 46340 ** 06 32 40.25887 -05 20 26.1299       8.311   A0V 12 0
27 HD 46541 * 06 33 41.0807489472 -07 12 12.512040588   7.50 7.48     A0III/IV 10 0
28 HD 46886 * 06 35 44.8087122744 -01 05 48.094699920   7.91 7.93     B8/9III 15 0
29 HD 46885 * 06 36 00.1056726360 +04 29 52.899086112 6.21 6.486 6.553     B8II 56 0
30 HD 47022 * 06 36 36.1302525216 +01 03 14.492052828   7.66 7.74     B8II 11 0
31 HD 47278 * 06 37 32.0240775624 -08 14 08.206572624   7.23 7.23     B9V 14 0
32 HD 47221 * 06 37 39.9602257944 +01 48 41.361384708   7.69 7.79     B8II 11 0
33 HD 47257 * 06 37 53.0476465128 +02 16 09.934033620   7.26 7.26     A0V 12 0
34 HD 47272 EB* 06 37 57.7925161512 +04 15 30.778096968   7.65 7.62     A0V 11 0
35 HD 47431 * 06 38 49.4044499256 +04 42 02.235939876 6.17 6.475 6.550     B7IV/V 46 0
36 V* V735 Mon a2* 06 40 25.1580209160 +02 33 28.736278020   7.49 7.50     B9V 16 0
37 HD 47756 * 06 40 31.9464201288 +06 22 16.506295536 5.91 6.358 6.498     B8pSiCrSr 67 0
38 HD 47964 ** 06 41 05.4409639536 +00 29 43.160425584 5.32 5.669 5.765     B8III 58 0
39 HD 48212 * 06 42 21.5008071288 +02 52 08.545228608   7.40 7.48     B8II 8 0
40 HD 48497 V* 06 43 36.0863036352 -01 20 48.439297212   7.40 7.51     B5V 17 1
41 HD 48808 * 06 45 06.7001294616 -01 01 15.555274716   7.37 7.44 8.43   B9 18 1
42 HD 48957 ** 06 46 11.1884 +00 44 47.874   7.90 7.93     B6/8II 7 1
43 HD 49123 * 06 46 31.7893522128 -08 55 07.052601540   7.21 7.22     B9IV/V 15 0
44 HD 49481 * 06 48 21.5569895352 -07 45 16.574753160   6.78 6.89     B7III/IV 17 0
45 HD 49643 ** 06 49 16.4057835624 -02 16 19.370394984 5.18 5.644 5.750     B8V 62 1
46 V* V740 Mon a2* 06 49 44.2890454344 -01 20 23.757601308   7.24 7.30     B9III 44 0
47 HD 49711 * 06 50 05.8601900328 +06 15 22.718310300   7.34 7.43     B8V 12 1
48 HD 49886 * 06 50 21.0288993840 -06 11 34.078036236   7.49 7.58     B9III 15 0
49 V* V741 Mon a2* 06 50 43.2607967736 -04 15 58.379424480   6.77 6.86     B7III 17 0
50 HD 50251 * 06 52 12.1464815472 -05 38 43.426849812   7.20 7.26     B8II 12 0
51 HD 50252 * 06 52 13.4427705528 -06 27 56.465381448   7.92 7.96     B8IV 7 0
52 HD 50513 * 06 53 18.5511907704 -09 41 25.217556720   7.76 7.82     B9III/IV 11 0
53 HD 50751 * 06 54 18.7818610608 -06 23 21.305618988   7.19 7.28     B7IV 11 0
54 HD 51079 * 06 55 31.5578726064 -08 25 03.022401324   7.89 7.93     B8II/III 17 0
55 HD 52312 * 07 00 23.7565066728 -08 24 24.546626892 5.58 5.864 5.939     B8III 45 1
56 HD 53004 EB* 07 03 23.6336140608 +00 20 38.347920348   7.23 7.26     B9IV/V 18 0
57 HD 53083 * 07 03 41.6557602000 -00 33 25.018862040   7.145 7.204 8.31 8.37 B8II/III 13 1
58 HD 53851 a2* 07 06 27.6584917320 -03 06 56.673747180   7.46 7.59     ApSi 23 0
59 HD 54929 * 07 10 33.2333781965 -07 52 15.667385993   7.42 7.42     B9III 13 0
60 HD 55362 * 07 12 35.9054906544 -00 33 34.219339020   7.89 7.95     B9 14 0
61 HD 55793 * 07 14 33.8976090216 +05 16 14.693038464   7.77 7.87     B8 10 1
62 HD 56006 * 07 14 59.1850051368 -07 40 49.030733784   7.60 7.69     B5V 16 0
63 HD 56446 * 07 17 17.7939929280 +06 40 51.514118544 6.13 6.520 6.625     B7V 38 0
64 HD 56613 Pu* 07 17 31.6047921912 -05 49 21.500169240   7.12 7.21     B8V 16 0
65 HD 56610 * 07 17 35.2671284592 -03 44 52.782551016   7.24 7.38     B8V 8 0
66 HD 57275 ** 07 20 31.07132 +00 24 13.0136           A0V 30 0
67 HD 57293 ** 07 20 35.5755219936 -01 35 45.661087680   7.96 8.00     B9III 17 1
68 HD 168202 * 18 18 28.1608686240 +05 08 06.843810516   7.54 7.50     B9 13 0
69 HD 168932 * 18 22 23.8004793384 -01 12 08.345094444   7.33 7.26     B9.5V 14 0
70 HD 169224 * 18 23 32.6048243976 +05 19 54.536666160   7.52 7.53     B9 8 0
71 HD 169225 * 18 23 49.5947709696 -01 08 47.180582988   7.82 7.72     B9.5V 12 0
72 HD 169512 ** 18 24 45.2369920824 +07 13 52.520146356   8.02 7.97     B9 14 1
73 HD 169578 * 18 25 08.8751475960 +05 05 04.434813204   6.720 6.718     B8V 49 0
74 HD 170783 Be* 18 31 04.4487386976 +04 37 37.037375040   7.92 7.73     B5 33 0
75 HD 170935 * 18 31 43.0534323624 +07 13 54.294136932   7.53 7.38     B8 10 0
76 V* V2393 Oph a2* 18 33 23.3029636152 +08 16 05.698559100 6.05 6.379 6.416     B9III 70 0
77 HD 171931 * 18 37 15.7313771880 +05 19 04.343231028 8.96 9.34 9.19     ~ 20 0
78 HD 172850 * 18 42 29.8949326392 -01 18 21.402168840   7.75 7.76     B9IV 14 0
79 HD 173673 * 18 46 46.5049624872 -06 41 24.693084528   7.67 7.66     B8/9II/III 21 0
80 HD 174701 * 18 52 07.9372988472 -07 15 30.955392468   7.97 8.00     B7/8IV 9 0
81 HD 174884 EB* 18 52 40.3063548312 +04 03 11.755214640   8.14 7.998     B8V 36 0
82 HD 174836 * 18 52 45.6223411872 -05 50 56.772164760   8.02 7.88     A0V 7 0
83 HD 176076 * 18 58 47.3086348176 -05 38 05.407921284   7.39 7.27     B9III/IV 12 0
84 HD 176158 * 18 59 12.7429224888 -06 50 31.496206272   7.57 7.53     B7/8II 13 0
85 HD 176258 * 18 59 23.8126701144 +01 24 22.613742504   7.52 7.50     B8/9V 5 0
86 * lam Aql PM* 19 06 14.9386542192 -04 52 57.225885348 3.07 3.34 3.43 3.46 3.55 B8.5V 219 0
87 HD 177880 * 19 06 35.1162043440 -01 20 46.089248244   6.872 6.821     K1III 32 0
88 HD 178744 * 19 09 51.5959121424 -00 25 41.205466020   6.281 6.321     B7IV 35 0
89 HD 179124 * 19 11 06.4326933096 +05 16 28.800407316   7.12 7.08     B9V 14 0
90 * 21 Aql a2* 19 13 42.7011956712 +02 17 37.310297604 4.67 5.08 5.15     B7III 230 0
91 * d Aql * 19 20 35.6863700904 -00 53 31.774520544 5.22 5.408 5.451     B9III 50 0
92 HD 181761 * 19 21 46.8269133096 -01 50 21.595278228   8.06 7.94     B8II 10 0
93 HD 182198 * 19 23 31.6234725264 -00 32 26.093724108   8.10 7.94     B9III 17 0

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2023.01.27-23:08:28

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