Details

Autor(en) / Beteiligte

• Lazarus, P
• Kaspi, V M
• Champion, D J
• Hessels, J W T
• Dib, R

Titel

CONSTRAINING RADIO EMISSION FROM MAGNETARS

Ist Teil von

• Astrophysical journal. Letters, 2012-01, Vol.744 (2), p.1-9

Ort / Verlag

United States

Erscheinungsjahr

2012

Quelle

EZB-FREE-00999 freely available EZB journals

Beschreibungen/Notizen

• We report on radio observations of five magnetars and two magnetar candidates carried out at 1950 MHz with the Green Bank Telescope in 2006-2007. The data from these observations were searched for periodic emission and bright single pulses. Also, monitoring observations of magnetar 4U 0142+61 following its 2006 X-ray bursts were obtained. No radio emission was detected for any of our targets. The non-detections allow us to place luminosity upper limits of L sub(1950) [<, approximate] 1.60mJy kpc super(2) for periodic emission and L sub(1950,single) [<, approximate] 7.6Jy kpc super(2) for single pulse emission. These are the most stringent limits yet for the magnetars observed. The resulting luminosity upper limits together with previous results are discussed, as is the importance of further radio observations of radio-loud and radio-quiet magnetars.