TheFar Ultraviolet Spectroscopic ExplorerSurvey of OviEmission in the Milky Way | Zendy

B. Otte | Zendy; W. V. Dixon | Zendy

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TheFar Ultraviolet Spectroscopic ExplorerSurvey of OviEmission in the Milky Way

Author(s) -

B. Otte,

W. V. Dixon

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/505414

Subject(s) - milky way , physics , astrophysics , galaxy , ultraviolet , halo , latitude , astronomy , emission spectrum , absorption (acoustics) , line of sight , spectral line , optics

We present a survey of OVI 1032 emission in the Milky Way using data from theFar Ultraviolet Spectroscopic Explorer (FUSE) satellite. The observations spanthe period from launch in 1999 to July 2003. Our survey contains 112 sightlines, 23 of which show measurable OVI 1032 emission. The OVI 1032 emissionfeature was detected at all latitudes and exhibits intensities of 1900-8600photons/s/cm^2/sr. Combined with values from the literature, these emissionmeasurements are consistent with the picture derived from recent OVI absorptionsurveys: high-latitude sight lines probe OVI-emitting gas in a clumpy, thickdisk or halo, while low-latitude sight lines sample mixing layers andinterfaces in the thin disk of the Galaxy.Comment: 40 pages, 10 figures, accepted for publication in Ap

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