Chandra Analysis of X-Ray Emission in Planetary Nebula NGC
Previous studies of nearby planetary nebulae (PNe) have revealed that several exhibit diffuse X-ray emission associated with wind-shock-generated “hot bubbles. ” During the ongoing Chandra X-ray imaging survey of PNe in the solar neighborhood, Chandra has observed 10 PNe that display “hot bubble ” X...
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| Format: | Text |
| Language: | English |
| Published: |
2012
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.397.2504 http://www.cis.rit.edu/DocumentLibrary/admin/uploads/CIS000139.pdf |
| Summary: | Previous studies of nearby planetary nebulae (PNe) have revealed that several exhibit diffuse X-ray emission associated with wind-shock-generated “hot bubbles. ” During the ongoing Chandra X-ray imaging survey of PNe in the solar neighborhood, Chandra has observed 10 PNe that display “hot bubble ” X-ray emission. We present detailed results for the Eskimo Nebula (NGC 2392), one the best detected cases of such emission. NGC 2392 harbors an X-ray-luminous point source at its central star (CSPNe), while soft, diffuse X-ray emission tracing shocks, most likely formed by energetic wind collisions, is also detected. We present the results of spatial and spectral modeling of Chandra X-ray imaging spectroscopy of NGC 2392 aimed at characterizing the shocks and mechanisms underlying the CSPNe point source X-ray emission. 1. |
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