Kavli Affiliate: Roger W. Romani
| First 5 Authors: Jack T. Dinsmore, Roger W. Romani, , ,
| Summary:
We present the first Chandra X-ray Observatory (CXO) catalog of "pulsar X-ray
filaments," or "misaligned outflows." These are linear, synchrotron radiating
features powered by ultra-relativistic electrons and positrons that escape from
bow shock pulsars. The filaments are misaligned with the (large) pulsar
velocity, distinguishing them from the pulsar wind nebula (PWN) trail which is
also often visible in CXO ACIS images. Spectral fits and morphological
properties are extracted for five secure filaments and three candidates using a
uniform method. We present a search of archival CXO data for linear diffuse
features; the known examples are recovered and a few additional weak candidates
are identified. We also report on a snapshot CXO ACIS survey of pulsars with
properties similar to the filament producers, finding no new filaments, but
some diffuse emission including one PWN trail. Finally, we provide an updated
model for the pulsar properties required to create filaments in light of these
new observations.
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