A Quantitative Non-radial Oscillation Model for the Subpulses in PSR B0943+10

Details A Quantitative Non-radial Oscillation Model for the Subpulses in PSR B0943+10 A Quantitative Non-radial Oscillation Model for the Subpulses in PSR B0943+10

2008-02-15

arxiv.org/abs/0802.2259v1

Astronomy and Astrophysics

Astrophysics

45 pages, 16 figures, accepted ApJ

Scientific paper

10.1086/587476

In this paper, we analyze time series measurements of PSR B0943+10 and fit them with a non-radial oscillation model. The model we apply was first developed for total intensity measurements in an earlier paper, and expanded to encompass linear polarization in a companion paper to this one. We use PSR B0943+10 for the initial tests of our model because it has a simple geometry, it has been exhaustively studied in the literature, and its behavior is well-documented. As prelude to quantitative fitting, we have reanalyzed previously published archival data of PSR B0943+10 and uncovered subtle but significant behavior that is difficult to explain in the framework of the drifting spark model. Our fits of a non-radial oscillation model are able to successfully reproduce the observed behavior in this pulsar.

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