A search for radio pulsations from neutron star companions of four subdwarf B stars

Thijs Coenen; Joeri van Leeuwen; Ingrid H. Stairs

doi:10.1051/0004-6361/201016098

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arXiv · 1106.2053

A search for radio pulsations from neutron star companions of four subdwarf B stars

Thijs Coenen·Joeri van Leeuwen·Ingrid H. Stairs

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Abstract

We searched for radio pulsations from the potential neutron star binary companions to subdwarf B stars HE 0532-4503, HE 0929-0424, TON S 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 0.2 mJy, but no pulsed emission was found. We discuss the implications for each system.

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Thijs Coenen, Joeri van Leeuwen, Ingrid H. Stairs. 2011-06-10. A search for radio pulsations from neutron star companions of four subdwarf B stars. https://doi.org/10.1051/0004-6361/201016098

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