Chandra X - ray Detection of a Hot Bubble within the Planetary Nebula NGC 5315
نویسندگان
چکیده
We report the serendipitous detection of the planetary nebula NGC 5315 by the Chandra X-ray Observatory. The Chandra imaging spectroscopy results indicate that the X-rays from this PN, which harbors a Wolf-Rayet (WR) central star, emanate from a TX ∼ 2.5 × 10 6 K plasma generated via the same windwind collisions that have cleared a compact (∼ 8000 AU radius) central cavity within the nebula. The inferred X-ray luminosity of NGC 5315 is ∼ 2.5 × 10 erg s (0.3-2.0 keV), placing this object among the most luminous such “hot bubble” X-ray sources yet detected within PNe. With the X-ray detection of NGC 5315, objects with WR-type central stars now constitute a clear majority
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