A Smoking Gun in the Carina Nebula

Details A Smoking Gun in the Carina Nebula A Smoking Gun in the Carina Nebula

2009-02-24

arxiv.org/abs/0902.4162v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

9 pages, 3 figures, accepted for publication to ApJL

Scientific paper

10.1088/0004-637X/695/1/L4

The Carina Nebula is one of the youngest, most active sites of massive star formation in our Galaxy. In this nebula, we have discovered a bright X-ray source that has persisted for ~30 years. The soft X-ray spectrum, consistent with kT ~128 eV blackbody radiation with mild extinction, and no counterpart in the near- and mid-infrared wavelengths indicate that it is a ~1e6-year-old neutron star housed in the Carina Nebula. Current star formation theory does not suggest that the progenitor of the neutron star and massive stars in the Carina Nebula, in particular Eta Carinae, are coeval. This result suggests that the Carina Nebula experienced at least two major episodes of massive star formation. The neutron star may be responsible for remnants of high energy activity seen in multiple wavelengths.

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