2004A&A...415..685H

Query : 2004A&A...415..685H

2004A&A...415..685H - Astronomy and Astrophysics, volume 415685-689 (2004/2-4)

New measurements of magnetic fields of roAp stars with FORS1 at the VLT.

HUBRIG S., SZEIFERT T., SCHOELLER M., MATHYS G. and KURTZ D.W.

Abstract (from CDS):

Magnetic fields play a key role in the pulsations of rapidly oscillating Ap (roAp) stars since they are a necessary ingredient of all pulsation excitation mechanisms proposed so far. This implies that the proper understanding of the seismological behaviour of the roAp stars requires knowledge of their magnetic fields. However, the magnetic fields of the roAp stars are not well studied. Here we present new results of measurements of the mean longitudinal field of 14 roAp stars obtained from low resolution spectropolarimetry with FORS 1 at the VLT.

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Journal keyword(s): stars: magnetic field - stars: oscillations - stars: chemically peculiar

Simbad objects: 17

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Number of rows : 17
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 V* AP Scl a2* 01 05 55.6980950160 -26 43 44.007202704   8.60 8.40     A2Vp 121 0
2 V* BW Cet a2* 01 31 16.4742701952 -11 07 07.935608352   9.63 9.38     ApSrEu 43 0
3 HD 12098 a2* 02 00 40.1774521766 +58 31 37.130534305   8.47 8.08 8.758   F0Eu 55 0
4 V* BN Cet a2* 02 06 15.8004336360 -19 07 26.305108608   10.56 10.17     ApSrEuCr 54 0
5 V* DO Eri a2* 03 55 16.1313315312 -12 05 56.727712752 6.35 6.32 6.00     A9VpSrEuCr 411 0
6 HD 83368 a2* 09 36 25.4255061727 -48 45 04.240404102   6.49 6.23     A8VSrCrEu 277 0
7 HD 99563 a2* 11 27 16.63609 -08 52 08.1942       9.193   A9III 86 0
8 V* PP Vir a2* 14 04 48.9376773456 +05 24 51.459774732   8.70 8.29     F0 86 0
9 V* V834 Ara a2* 17 48 29.5532022648 -51 55 02.538979464   10.81 10.39     ApEuSrCr 32 0
10 V* V4373 Sgr a2* 19 39 20.4197579112 -29 44 34.466055252   10.37 9.96     FpSrEu 37 0
11 V* CK Oct a2* 20 13 56.3652220104 -78 52 42.269446308   10.41 9.94     ApEuSr 51 0
12 V* QR Tel a2* 20 24 11.7818561520 -51 43 25.270017456   9.56 9.18     ApSrCrEu 44 0
13 V* AW Cap a2* 20 38 09.8033063304 -17 30 06.486664068   10.14 9.71     FpSrEu 37 0
14 V* BI Mic a2* 21 26 03.8683509936 -29 55 48.145296468   9.10 8.81     ApSrEu 87 0
15 V* MM Aqr a2* 22 33 12.3248929848 -20 02 21.880485816   10.058 9.582     A(pEuSrCr) 51 0
16 V* BP Gru a2* 23 01 46.8211202616 -44 50 26.878698672   7.99 7.52     ApSrSi: 137 0
17 V* CN Tuc a2* 23 09 27.7123518144 -63 39 12.107929716   9.62 9.38     ApEuSr 48 0

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