期刊
ASTRONOMY & ASTROPHYSICS
卷 531, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201016098
关键词
stars: neutron; pulsars: general; subdwarfs
资金
- Netherlands Research School for Astronomy [NOVA3-NW3-2.3.1]
- European Commission [FP7-PEOPLE-2007-4-3-IRG, 224838]
- NSERC
We searched for radio pulsations from the potential neutron star binary companions to subdwarf B stars HE 0532-4503, HE 0929-0424, TONS 183 and PG 1232-136. Optical spectroscopy of these subdwarfs has indicated they orbit a companion in the neutron star mass range. These companions are thought to play an important role in the poorly understood formation of subdwarf B stars. Using the Green Bank Telescope we searched down to mean flux densities as low as 0.2mJy, but no pulsed emission was found. We discuss the implications for each system.
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