Сложная структура магнитного поля звезды HD45583

HD45583
1
1
2
2
,
e-mail: glagol@sao.ru
D-14471, Potsdam, Gontardstr 130, Germany, e-mail: ewald-gerth@t-online.de
HD45583.
–
The complicated structure of the magnetic field
of the star HD45583
Yu.V. Glagolevskij, E. Gerth
Abstract
Preliminary data are obtained on the structure of the magnetic field of the unique magnetic
star HD45583. The observational data are well described by a configuration of two
magnetic dipoles located on opposite sides with respect to the center of the star, whereby
the axes of the dipoles are directed approximately in radial direction. The positive
monopoles appear closer to the surface, whereas the negative ones are positioned closer to
the center of the star. For this reason, there are two positive magnetic poles but no negative
poles on the star’s surface. The necessity of additional supervision of this unique object is
emphasized.
Key words: stars: magnetic fields – individual: HD45583
6HD45583 [1],
–2000
+4000
FLDCURV,
[1]
20 – 30
[ 8 ].
1
[2]
HD45583 Si-
Te = 12900
Mb = 1.3.
R = 3.2Ro.
[3]
P = 1d.177177
[4]
[5]
v = 50.6 P/R
vsini
i = 39° ± 5°,
i
vsini = 70 km/s.
JD2453272.490
= 1d.177000.
[1,2].
HD32633 [ 6 ], HD137909 [ 7 ]).
HD45583
λ
δ,
1.
i = 39°,
1
λ
+
-
0°
180
δ
16200
16000
+5°
-5
4000
2000
–
0.6
0.0
0.5
2
3
2
λ
+
-
δ
0°
180
9400
-314000
-7°
9
HD45583
3
283° ± 1°
283 ± 1
68 ± 1
68 ± 1
+
+
-
λ
21° ± 3°
-7 ± 1
21 ± 3
-7 ± 1
δ
158000 ± 20000
158000 ± 20000
∆ =
i = 39°,
.
0.6 ± 0.1
B s,
Bs
11400
19300
0.8
λ
δ
0.4
HD45583
1°,
χ2/n.
100
Bs –
4
i.
p
± 5°.
i
3
.
5
0.
Bp
0.2 – 0.5,
HD45583,
HD32633 [6]
HD137909 [7].
[9].
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I.I. Romanyuk, Nizhnij Arkhyz, 2007, p.81
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1.
.
.
.(
)
1. Glagolevskij Yu.V., Gerth E., Bull.SAO, 2008 (in press).
1. Glagolevskij Yu.V., Gerth E., in Magnetic stars, ed Glagolevskij Yu.V., Kudryavtsev
D.O., RomanyukI.I., Nizhnij Arkhyz, 2004, p.142.
1. Gerth E., Glagolevskij Yu.V. Bull. Spec. Astrophys.Obs., 56, 25, 2003.
1. Braithwaite J., Spruit H.C., Astron. and Astrophys., 453, 1097, 2006.
6