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Spatially-resolved Spectroscopy of the IC443 Pulsar Wind Nebula and EnvironsDeep Chandra ACIS observations of the region around the putative pulsar, CXOU J061705.3+222117, in the supernova remnant IC443 reveal, for the first time, a ring-like morphology surrounding the pulsar and a jet-like structure oriented roughly north-south across the ring and through the pulsar location. The observations further confirm that (1) the spectrum and flux of the central object are consistent with a rotation-powered pulsar interpretation, (2) the non-thermal surrounding nebula is likely powered by the pulsar wind, and (3) the thermal-dominated spectrum at greater distances is consistent with emission from the supernova remnant. The cometary shape of the nebula, suggesting motion towards the southwest (or, equivalently, flow of ambient medium to the northeast), appears to be subsonic; there is no evidence for a strong bow shock, and the circular ring is not distorted by motion through the ambient medium.
Document ID
20130013924
Acquisition Source
Marshall Space Flight Center
Document Type
Presentation
Authors
Swartz, D. A.
(Universities Space Research Association Huntsville, AL, United States)
Weisskopf, M. C.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Zavlin, V. E.
(Universities Space Research Association Huntsville, AL, United States)
Bucciantini, N.
(Istituto di Astrofisica Spaziale e Fisica Cosmica (INAF-IASF) Rome, Italy)
Clarke, T. E.
(Naval Research Lab. United States)
Karovska, M.
(Smithsonian Astrophysical Observatory Cambridge, MA, United States)
Pavlov, G. G.
(Pennsylvania State Univ. PA, United States)
O'Dell, S. L.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
vanderHorst, A J.
(Amsterdam Univ. Netherlands)
Yukita, M.
(Alabama Univ. AL, United States)
Date Acquired
August 27, 2013
Publication Date
April 7, 2013
Subject Category
Astronomy
Report/Patent Number
M13-2543
Meeting Information
Meeting: 13th Meeting of the High Energy Astrophysicsl Division
Location: Monterey, CA
Country: United States
Start Date: April 7, 2013
End Date: April 12, 2013
Sponsors: American Astronomical Society
Distribution Limits
Public
Copyright
Public Use Permitted.
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