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Astron. Astrophys. 352, 532-542 (1999)

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The putative pulsar-wind nebulae of the three Musketeers PSR B1055-52, B0656+14 and Geminga revisited

W. Becker 1, N. Kawai 2, W. Brinkmann 1 and R. Mignani 3

1 Max-Planck-Institut für Extraterrestrische Physik, 85740 Garching bei München, Germany
2 Cosmic Radiation Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-01, Japan
3 ESA-STECF, 85740 Garching bei München, Germany

Received 20 May 1999 / Accepted 25 August 1999

Abstract

We report on the analysis of archival ASCA, ROSAT and BeppoSAX data of PSR B1055-52, PSR B0656+14 and Geminga, performed in order to investigate the reality of the putative [FORMULA] arcmin wide X-ray pulsar-wind nebulae recently proposed to exist around these pulsars. In all these cases, the ROSAT and/or BeppoSAX data show that the diffuse and clumpy X-ray nebulae found by ASCA can be resolved in the contribution of unidentified point sources, unlikely related to the pulsars.

Key words: stars: pulsars: individual: PSR B1055-52, B0656+14, Geminga – stars: neutron – X-rays: general

Send offprint requests to: W. Becker

Correspondence to: web@mpe.mpg.de

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© European Southern Observatory (ESO) 1999

Online publication: December 2, 1999
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