Issue |
A&A
Volume 368, Number 2, March III 2001
|
|
---|---|---|
Page(s) | 635 - 638 | |
Section | The Sun | |
DOI | https://doi.org/10.1051/0004-6361:20010202-1 | |
Published online | 15 March 2001 |
Research Note Interstellar polarization at high galactic latitudes from distant stars
V. First results for the South Galactic Pole
Tuorla Observatory, 21500 Piikkiö, Finland e-mail: andrei@astro.utu.fi;pekkatee@astro.utu.fi
Corresponding author: A. Berdyugin, andrei@astro.utu.fi
Received:
4
January
2001
Accepted:
18
January
2001
We present the first results of our interstellar polarization
programme for the South Galactic Pole (). The new observations (43
stars) combined with previously published data show that there is a substantial
interstellar polarization in this area of the sky. Starting at a distance
of 300 pc, we have found stars with
including one for which
. These measurements lead to the conclusion that there is a
significant amount of interstellar dust at high south galactic latitudes.
Futhermore, there is a remarkable alignment seen over the South Polar Cap: for
most stars the directions of polarization vectors are aligned with the
longitude
, close to the expected direction of the global
magnetic field. In this respect the SGP seems to differ strongly from its
northern counterpart.
Key words: polarization / dust, extinction / solar neighbourhood
© ESO, 2001
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