2004A&A...427.1009A


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.01CET10:02:15

2004A&A...427.1009A - Astronomy and Astrophysics, volume 427, 1009-1017 (2004/12-1)

Chemical analysis of 24 dusty (pre-)main-sequence stars.

ACKE B. and WAELKENS C.

Abstract (from CDS):

We have analysed the chemical photospheric composition of 24 Herbig Ae/Be and Vega-type stars in search for the λ Bootis phenomenon. We present the results of the elemental abundances of the sample stars. Some of the stars were never before studied spectroscopically at optical wavelengths. We have determined the projected rotational velocities of our sample stars. Furthermore, we discuss stars that depict a (selective) depletion pattern in detail. HD 4881 and HD 139614 seem to display an overall deficiency. AB Aur and possibly HD 126367 have subsolar values for the iron abundance, but are almost solar in silicon. HD 100546 is the only clear λ Bootis star in our sample.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: chemically peculiar - stars: planetary systems: protoplanetary disks - stars: pre-main-sequence - stars: individual: HD 100546

Simbad objects: 31

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Number of rows : 31

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 4481 * 00 47 15.8808739046 +37 16 31.476778967   9.51 9.41     A2 7 0
2 HD 4881 * 00 51 33.7899557334 +51 34 17.128881532 6.200 6.250 6.220     B9.5V 53 0
3 HD 6028 * 01 02 18.4621840612 +51 02 05.805940928 6.760 6.610 6.490     A3V 34 0
4 * pi. Cet SB* 02 44 07.3492803 -13 51 31.313011 3.66 4.112 4.236     B7IV 317 0
5 * tau01 Eri PM* 02 45 06.2034405658 -18 34 21.478629972 4.94 4.94 4.46 4.03 3.76 F7V 214 0
6 * rho Ari PM* 02 56 26.1717266513 +18 01 23.665188613   6.06   5.3   F6V 150 0
7 * alf For ** 03 12 04.5273570 -28 59 15.433684 4.41 4.36 3.85 3.39 3.08 F6V+G7V 247 0
8 HD 28978 * 04 34 08.2676941493 +05 34 07.040449548   5.729 5.678     A2IV 91 0
9 V* AB Aur Ae* 04 55 45.8459978418 +30 33 04.293281305 7.20 7.16 7.05 6.96 6.70 A0Ve 951 2
10 HD 31648 Ae* 04 58 46.2654165113 +29 50 36.990341242 7.84 7.78 7.62 7.76 7.43 A5Vep 411 0
11 HD 33564 PM* 05 22 33.5290089287 +79 13 52.142657543       4.8   F7V 153 1
12 HD 36112 Ae* 05 30 27.5286772598 +25 19 57.082162439   8.57 8.27     A8Ve 381 0
13 HD 244604 Or* 05 31 57.2512002483 +11 17 41.374206174   9.61 9.43     A0Vesh 61 0
14 HD 245185 Ae* 05 35 09.6040600795 +10 01 51.465846371 10.05 10.07 9.93     A0Vae 109 0
15 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1694 1
16 HD 250550 Ae* 06 01 59.9894900068 +16 30 56.724889160   9.60 9.593 9.64   B9e 234 1
17 * bet UMa PM* 11 01 50.4765370 +56 22 56.733912 2.35 2.35 2.37 2.31 2.35 A1IVps 413 1
18 HD 97048 Ae* 11 08 03.3105687971 -77 39 17.491180130 9.03 8.76 9.00   8.64 A0Vep 467 0
19 * tet Leo PM* 11 14 14.4044630 +15 25 46.454086 3.40 3.33 3.35 3.32 3.34 A2IV 315 0
20 HD 100453 Ae* 11 33 05.5765928993 -54 19 28.543792679   8.09 7.79     A9Ve 216 1
21 HD 100546 Be* 11 33 25.4404858122 -70 11 41.239343121   6.71 6.30   6.64 A0VaekB8_lB 669 1
22 * bet Leo dS* 11 49 03.57834 +14 34 19.4090 2.30 2.22 2.13 2.08 2.06 A3Va 548 0
23 V* DX Cha Ae* 12 00 05.0870448690 -78 11 34.559255151   6.81 6.60     A0_sh 311 0
24 HD 104327 PM* 12 00 48.1815996533 -37 28 45.249249188   8.72 8.28     F3V 19 0
25 * lam Boo dS* 14 16 23.0187965 +46 05 17.900526 4.31 4.26 4.18 4.16 4.13 A0Va_lB 330 0
26 HD 126367 * 14 25 29.8914326425 -19 58 11.938435225   6.709 6.595     A1/2V 40 0
27 CPD-36 6759 Y*O 15 15 48.4459023859 -37 09 16.026315179   9.21 8.708     F8V 374 1
28 HD 135344 * 15 15 48.9457954324 -37 08 55.727525343   7.84 7.76     A0V 130 1
29 HD 139614 Ae? 15 40 46.3818973118 -42 29 53.538928508   8.47 8.24     A9VekA5mA5(_lB) 167 0
30 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2537 0
31 HD 190073 Ae* 20 03 02.5098091524 +05 44 16.658081203 7.91 7.86 7.73   7.65 A2IVe 232 0

    Equat.    Gal    SGal    Ecl

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2021.03.01-10:02:15

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