MULTIPHASE HIGH-VELOCITY CLOUDS TOWARD HE 0226-4110 AND PG 0953+414

@article{Fox2005MULTIPHASEHC,
  title={MULTIPHASE HIGH-VELOCITY CLOUDS TOWARD HE 0226-4110 AND PG 0953+414},
  author={Andrew J. Fox and Bart P. Wakker and Blair. D. Savage and Todd M. Tripp and Kenneth Russell Sembach and Joss Bland-Hawthorn University of Wisconsin-Madison and University of Massachusetts and Space Telescope Science Institute and Anglo-Australian Observatory},
  journal={The Astrophysical Journal},
  year={2005},
  volume={630},
  pages={332-354}
}
We study the physical conditions, elemental abundances, and kinematics of the high-velocity clouds (HVCs) along the sight lines toward active galaxies HE 0226-4110 and PG 0953+414 using Hubble Space Telescope Space Telescope Imaging Spectrograph and Far Ultraviolet Spectroscopic Explorer data. No 21 cm H I emission is detected in these clouds, but our observations reveal multiple components of HVC absorption in lines of H I, C II, C III, C IV, O VI, Si II, Si III, and Si IV in both directions… 
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References

SHOWING 1-10 OF 79 REFERENCES
Highly ionized high - velocity clouds toward PKS 2155-304 and Markarian 509
To gain insight into four highly ionized high-velocity clouds (HVCs) discovered by Sembach et al., we have analyzed data from the Hubble Space Telescope (HST) and Far Ultraviolet Spectroscopic
The Diversity of High- and Intermediate-Velocity Clouds: Complex C versus IV Arch
We present Far Ultraviolet Spectroscopic Explorer (FUSE) and Space Telescope Imaging Spectrograph (STIS) observations of interstellar ultraviolet absorption lines in the Galactic high-velocity cloud
Highly Ionized Gas in the Galactic Halo and the High-Velocity Clouds toward PG 1116+215
We have obtained high-resolution Far Ultraviolet Spectroscopic Explorer (FUSE) and Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) echelle observations of the quasar PG 1116
FAR ULTRAVIOLET SPECTROSCOPIC EXPLORER OBSERVATIONS OF O vi IN HIGH-VELOCITY CLOUDS
We have used moderate-resolution (FWHM ≈ 25 km s-1) spectra of active galactic nuclei and QSOs observed by the Far Ultraviolet Spectroscopic Explorer to make the first definitive measurements of
The Hot Intergalactic Medium-Galaxy Connection: Two Strong O VI Absorbers in the Sight Line toward PG 1211+143
We present Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) and Far Ultraviolet Spectroscopic Explorer (FUSE) spectra of the QSO PG 1211+143 (zem = 0.081) and a galaxy survey
Highly Ionized Gas Surrounding High-Velocity Cloud Complex C*
We present Far Ultraviolet Spectroscopic Explorer and Hubble Space Telescope observations of high-, intermediate-, and low-ion absorption in high-velocity cloud (HVC) Complex C along the lines of
Far Ultraviolet Spectroscopic Explorer Spectroscopy of High-Velocity Cloud Complex C
We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the sight line toward the Seyfert 1 galaxy Markarian 876, which passes through high-velocity cloud (HVC) complex C. This sight
Highly Ionized High-Velocity Clouds: Hot Intergalactic Medium or Galactic Halo?
We use spectroscopic data from the Hubble Space Telescope (HST) and Far Ultraviolet Spectroscopic Explorer (FUSE) to study the wide range of ionization states of the "highly ionized high-velocity
FUSE Observations of Atomic Abundances and Molecular Hydrogen in the Leading Arm of the Magellanic Stream
We present Far-Ultraviolet Spectroscopic Explorer observations of the atomic and molecular absorption in high-velocity cloud HVC 287.5]22.5]240, which lies in front of the ultraviolet-bright nucleus
H I Spectra and Column Densities toward HVC and IVC Probes
We show 21 cm line profiles in the direction of stars and extragalactic objects, lying projected on high- and intermediate-velocity clouds (HVCs and IVCs). About half of these are from new data
...
1
2
3
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5
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