X-ray observations of PSR B0355+54 and its pulsar wind nebula |
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| Authors: | Katherine E. McGowan W. Thomas Vestrand Jamie A. Kennea Silvia Zane Mark Cropper France A. Córdova |
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| Affiliation: | (1) School of Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ, UK;(2) Los Alamos National Laboratory, Los Alamos, NM 87545, USA;(3) 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA;(4) Mullard Space Science Laboratory, Holmbury St. Mary, Dorking, RH5 6NT, UK;(5) Chancellor’s Office, University of California, Riverside, CA 92521, USA |
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| Abstract: | We present X-ray data of the middle-aged radio pulsar PSR B0355+54. The XMM-Newton and Chandra observations show not only emission from the pulsar itself, but also compact diffuse emission extending ∼50″ in the opposite direction to the pulsar’s proper motion. Our analysis also indicates the presence of fainter diffuse emission extending ∼5′ from the point source. The morphology of the diffuse component is similar to the ram-pressure confined pulsar wind nebulae detected for other sources. We find that the compact diffuse component is well-fitted with a power-law, with an index that is consistent with the values found for other pulsar wind nebulae. The core emission from the pulsar can be characterized with a thermal plus power-law fit, with the thermal emission most likely originating in a hot polar cap. |
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| Keywords: | Pulsars Individual (PSR B0355+54) X-rays |
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