Discovery of a young nearby supernova remnant

摘要: About 200 supernova remnants have been found in the galaxy1, six of which are younger than about 1,000 years (ref. 2). Observations these young important for understanding late phases evolution, and each new object should add substantially to our knowledge processes involved. Here I report discovery a remnant (RXJ0852.0 − 4622), identified by its X-ray emission, at southeast corner known Vela remnant. The high temperature (>3 × 107 K) indicates an age less ∼1,500 yr. observed diameter is 2°, suggests distance 1 kpc, based on comparison with AD1006. RXJ0852.0 4622 may therefore be nearest occurred during recent human history.