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Interstellar polarization at high galactic latitudes from distant stars. V. First results for the South Galactic Pole
We present the first results of our interstellar polarization programmefor the South Galactic Pole (b<-70degr ). The new observations (43stars) combined with previously published data show that there is asubstantial interstellar polarization in this area of the sky. Startingat a distance of 300 pc, we have found stars with P > 0.3% includingone for which P ~ 0.6%. These measurements lead to the conclusion thatthere is a significant amount of interstellar dust at high southgalactic latitudes. Futhermore, there is a remarkable alignment seenover the South Polar Cap: for most stars the directions of polarizationvectors are aligned with the longitude l ~ 80degr , close to theexpected direction of the global magnetic field. In this respect the SGPseems to differ strongly from its northern counterpart.
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Balena |
| Ascensione retta: | 01h39m19.96s |
| Declinazione: | -12°02'32.0" |
| Magnitudine apparente: | 8.739 |
| Distanza: | 303.951 parsec |
| Moto proprio RA: | 30.7 |
| Moto proprio Dec: | 8.7 |
| B-T magnitude: | 9.907 |
| V-T magnitude: | 8.836 |
Cataloghi e designazioni:
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