BIMA observations of linear polarization in Sagittarius A* at 112 GHz

Authors
Bower, GC Wright, MCH Falcke, H Backer, DC
Citation
Gc. Bower et al., BIMA observations of linear polarization in Sagittarius A* at 112 GHz, ASTROPHYS J, 555(2), 2001, pp. L103-L106
Citations number
20
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
555
Issue
2
Year of publication
2001
Part
2
Pages
L103 - L106
Database
ISI
SICI code
0004-637X(20010710)555:2<L103:BOOLPI>2.0.ZU;2-Y
Abstract
We report here Berkeley-Illinois-Maryland Association array observations of linear polarization in Sagittarius A*, the compact radio source in the Gal actic center. These observations had a resolution of 20" x 5" oriented nort h-south. We do not detect linear or circular polarization at a level of 1.8 % (1 sigma) at 112 GHz. This puts a new constraint on models that show a sh arp change in linear polarization fraction at 100 GHz.