2011A&A...531A.125C

Query : 2011A&A...531A.125C

2011A&A...531A.125C - Astronomy and Astrophysics, volume 531A125-125 (2011/7-1)

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

COENEN T., VAN LEEUWEN J. and STAIRS I.H.

Abstract (from CDS):

We searched for radio pulsations from the potential neutron star binary companions to subdwarf B stars HE0532-4503, HE0929-0424, TONS183 and PG1232-136. 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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Journal keyword(s): stars: neutron - pulsars: general - subdwarfs

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR J0034-05 Psr 00 34 21.8281 -05 34 36.620           ~ 201 0
2 Ton S 183 HS* 01 01 17.5722745104 -33 42 45.434983572   12.39 14.631 12.95   sdB 53 0
3 PSR B0450-18 Psr 04 52 34.11900 -17 59 23.1500           ~ 203 1
4 HE 0532-4503 HS* 05 33 40.5164632128 -45 01 35.266985868 14.89 15.86 16.08     sdB 23 0
5 HE 0929-0424 HS* 09 32 02.1130203840 -04 37 36.937709652   16.11 16.16     sdB 22 0
6 PG 1232-136 HS* 12 35 18.7430526168 -13 55 08.879064096   13.06 13.27     sdB 34 0
7 PSR B1257+12 Psr 13 00 03.1075 +12 40 55.155           ~ 546 1

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