천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제35권1호
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- Pages.76.2-76.2
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- 2010
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- 1226-2692(pISSN)
Discovery of the Extraplanar FUV Halo of NGC 891
초록
We report the extended far-ultraviolet (FUV) halo of NGC 891 above the galactic plane. The FUV intensity distribution is well described by two exponential components, one with the scale height of ~0.34 kpc and the other of ~2.3 kpc. The extraplanar FUV halo is traceable up to > 5 kpc. The FUV halo is attributable to scattered-off starlight by extraplanar dust. Using Monte-Carlo radiative transfer simulations, the FUV intensity distribution along the minor axis is found to be well modeled with two dust comonents. Its implications are discussed.
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