1999A&A...345..244Z


Query : 1999A&A...345..244Z

1999A&A...345..244Z - Astronomy and Astrophysics, volume 345, 244-248 (1999/5-1)

Properties of He-rich stars. II. CNO abundances and projected rotational velocities.

ZBORIL M. and NORTH P.

Abstract (from CDS):

We present an abundance analysis of light elements in the most massive chemically peculiar (CP) stars, He-rich stars. The analysis is based on both low and high-resolution observations collected at ESO, La Silla, Chile in the optical region and includes 6 standard and 21 He-rich stars. Light element abundances display a diverse pattern from under-solar up to above-solar values. Carbon is found underabundant in the hottest He-rich stars and normal in the coolest ones, according to the LTE model predictions. The distribution of projected rotational velocities shows a significant excess of slow rotators, no He-rich stars having vsini>130km/s.

Abstract Copyright:

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

Simbad objects: 26

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Number of rows : 26
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 * del02 Ori SB* 05 32 00.4064140728 -00 17 04.347484800 5.97 6.67 6.83     B2Vsn 272 0
2 V* V1046 Ori SB* 05 35 21.8667428568 -04 29 39.024375324 5.66 6.43 6.56 6.61 6.74 B2/3V 289 0
3 * sig Ori E Y*O 05 38 47.2050040320 -02 35 40.521424812 5.66 6.38 6.46 6.84 7.08 B2IV-Vp_He 424 0
4 V* V901 Ori Ro* 05 40 56.3704617744 -01 30 25.856677224 5.96 6.82 6.96     B2V 315 2
5 HD 260858 * 06 37 46.7077028544 +12 46 05.032527852   9.22 9.15     ~ 26 0
6 HD 264111 * 06 47 53.8569554424 +04 40 00.850904832 9 9.64 9.57     ~ 49 0
7 CD-27 3748 * 07 12 02.2903052112 -27 43 04.869681420 8.21 9.04 9.25 9.78   OB- 33 0
8 * ome CMa Be* 07 14 48.6538664 -26 46 21.609714 2.90 3.64 3.82 3.80 3.90 B2.5Ve 340 0
9 HD 58260 * 07 23 19.5997521648 -36 20 24.538554852 5.87 6.61 6.73     B2/3Vp 94 0
10 HD 60344 * 07 33 02.1373084440 -23 56 03.348474360 6.71 8.49 9.09 8.62   B2III 73 0
11 HD 64740 * 07 53 03.6353775 -49 36 46.952967 3.48 4.40 4.63 4.76 4.97 B2V 197 0
12 HD 66522 * 08 01 35.1013259760 -50 36 20.164873212 6.61 7.26 7.19     B2III 47 0
13 CD-46 4639 * 08 49 39.6697396800 -46 50 53.158156188   10.11 10.05 10.17   OB- 26 0
14 HD 92938 Be* 10 42 14.1192723749 -64 27 59.133997516 4.10 4.68 4.82     B3V 113 0
15 HD 96446 Pu* 11 06 05.8219128840 -59 56 59.564064444 5.81 6.57 6.69     B2IIIp 159 0
16 * del Cen Be* 12 08 21.4976373 -50 43 20.738614 1.51 2.39 2.52 2.48 2.62 B2Vne 301 0
17 CPD-62 2698 * 12 21 08.2310476032 -62 55 38.875753344   11.56 10.62     ~ 1 0
18 * sig Cen ** 12 28 02.3820785 -50 13 50.287232 2.95 3.72 3.91 4.02 4.22 B2V 153 0
19 * bet Mus ** 12 46 16.80410 -68 06 29.2164 2.13     5.51   B2V+B3V 115 0
20 * ups01 Cen V* 13 58 40.7486851 -44 48 12.908967 2.87 3.67 3.87 4.01 4.22 B2IV-V 140 0
21 * chi Cen bC* 14 06 02.7682446 -41 10 46.678780 3.4 4.155 4.343     B2V 210 1
22 HD 135518 * 15 14 02.6712976344 +41 23 02.161803084   9.77 9.24     G 3 0
23 * bet02 Sco SB* 16 05 26.5686169680 -19 48 06.845424840 4.19 4.87 4.89 5.58   B2V 208 0
24 HD 149257 * 16 35 45.4515816840 -45 37 16.413043908 7.67 9.46 9.18 9.38   B1Ib 47 0
25 HD 168785 * 18 22 45.9040189608 -30 08 26.177051004 7.79 8.52 8.51 9.40   B2II 66 0
26 * alf Tel PM* 18 26 58.4160403 -45 58 06.449765 2.7 3.299 3.463     B3IV 135 0

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2022.05.22-22:59:12

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