Volume 384, Number 3, March IV 2002
|Page(s)||1050 - 1053|
|Published online||15 March 2002|
Interstellar polarization at high galactic latitudes from distant stars
VI. Extended polarization map and connection with the local spiral structure
Tuorla Observatory, 21500 Piikkiö, Finland e-mail: firstname.lastname@example.org; email@example.com
Corresponding author: A. Berdyugin, firstname.lastname@example.org
Accepted: 4 January 2002
We present new interstellar polarization measurements for 116 stars at high galactic latitudes. Our data show that Markkanen's cloud – the main polarization structure seen in the North Galactic Pole area () extends further towards lower latitudes. Especially, we have found a new dust formation in the area < , . Interstellar polarization in this part of the sky peaks at , which gives a lower limit to the extinction . Polarization vectors in this cloud are very well aligned along the direction of . On the IRAS 100 micron map this dust structure shows up as a bright emission area. We discuss the new polarization map extending from circumpolar to lower latitudes and point out features which suggest that Markkanen's cloud may be a part of the dust lane in the inner edge of the local spiral or spur.
Key words: polarization / ISM: dust, extinction / Galaxy: structure / Galaxy: general
© ESO, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.