Polarimetry toward the IRAS Vela Shell. I. The Catalog

Bibcode
2002ApJS..141..469P
DOI
10.1086/340933
Pereyra, A.; Magalhães, A. M.
Bibliographical reference

The Astrophysical Journal Supplement Series, Volume 141, Issue 2, pp. 469-483.

Advertised on:
8
2002
Number of authors
2
IAC number of authors
0
Citations
20
Refereed citations
17
Description
We have obtained linear polarization measurements of stars along the western side of the IRAS Vela Shell toward HD 62542. From 16 CCD fields distributed along the ionization front (I-front) we have built a catalog of 856 objects with polarization signal-to-noise ratio larger than 10. We detect very significant levels of polarization and hence an appreciable magnetic field throughout the region. Composite polarization maps around the I-front are shown. In some regions the polarization vectors are parallel to the I-front, but a perpendicular trend is also evident along parts of the front. In addition, the polarization pattern seems to be affected by gas streaming inside the cloud.
Type
Refereed
Catalogs
Clouds
Magnetic fields

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