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Nathan Myers

The current estimate for average starting speed of a pulsar is ~450 km/s. When a young pulsar looks like it's going slowly, it's more often just headed away from us.

http://www.atnf.csiro.au/research/pulsar/psrcat/ reveals a candidate, B2021+51=J2022+5154, with age 2.74My, distance 1220 ps, and "only" 64 km/s transverse velocity (based on the more accurate "DM" distance).

Then we have B1917+00=J1919+0021, age only 2.6My, 3320 ps away, but with only 35 km/s transverse velocity. To get that far from here it would need to be going more than twice as fast as the average pulsar, which is possible.

B1504-43=J1507-4352 and J1126-6942=J1126-6942 are about the right age and distance, but we don't know anything about their speed and direction.

By the way, I don't understand figure 4R. It shows a dramatic Fe spike at 2.6 Mya and corrresponding drop in magnetite microfossils, but calls attention to an undistinguished 2.8 Mya. What do they suggest happened at 2.6 Mya?

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