1111.3315 (Martin C. Weisskopf)
Martin C. Weisskopf
We summarize here the results, most of which are preliminary, of a number of
recent observations of the Crab nebula system with the Chandra X-Ray
Observatory. We discuss four different topics: (1) The motion on long (> 1yr)
time scales of the southern jet. (2) The discovery that pulsar is not at the
center of the projected ring on the sky and that the ring may well lie on the
axis of symmetry but appears to be displaced at a latitude of about 5 degrees.
(Note that this deprojection is by no means unique.) (3) The results and
puzzling implications of the Chandra phase-resolved spectroscopy of the pulsar
when compared to observations of pulse-phase variations of similar and
dissimilar measures in other regions of the spectrum. (4) The search for the
X-ray location of the site of the recently-discovered gamma-ray flaring. We
also comment briefly on our plan to use the Chandra data we obtained for the
previous project to study the nature of the low-energy flux variations recently
detected at hard X-ray energies.
View original:
http://arxiv.org/abs/1111.3315
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