Southern stars that can be used as unpolarized standards

• DOI: 10.1046/j.1365-8711.2003.06957.x
• Publication Date: 2003-10-15T04:56:57Z
• Authors: R. Gil-Hutton; P. Benavidez
• Keywords: 0103 physical sciences; 01 natural sciences

Results are presented from a programme of linear polarimetry to find unpolarized stars in the solar vicinity that could be used as standard stars and are within reach of telescopes in the southern hemisphere. We find up to 10 suitable candidates. On the other hand, among the observed stars, HD 112164, HD 114613, HD 130307 and HD 160691 are objects within 27 pc of the Sun but showed a relatively high polarization in the ≈0.1 per cent level, which must be of intrinsic origin.