Search Results - "Wakker, B. P."
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Distances to Galactic High-Velocity Clouds. I. Cohen Stream, Complex GCP, Cloud g1
Published in The Astrophysical journal (01-01-2008)“…The high- and intermediate-velocity interstellar clouds (HVCs/IVCs) are tracers of energetic processes in and around the Milky Way. Clouds with near-solar…”
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HIGH-VELOCITY CLOUDS
Published in Annual review of astronomy and astrophysics (01-09-1997)“…High-velocity clouds (HVCs) consist of neutral hydrogen (HI) at velocities incompatible with a simple model of differential galactic rotation; in practice one…”
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Distances to Galactic High-Velocity Clouds: Complex C
Published in The Astrophysical journal (01-12-2007)“…We report the first determination of a distance bracket for the high-velocity cloud (HVC) complex C. Combined with previous measurements showing that this…”
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O VI Absorbers Tracing Hot Gas Associated with a Pair of Galaxies at z = 0.167
Published in The Astrophysical journal (20-08-2010)“…High signal-to-noise observations of the QSO PKS 0405-123 (z {sub em} = 0.572) with the Cosmic Origins Spectrograph from 1134 to 1796 A with a resolution of…”
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THE PROPERTIES OF TWO LOW-REDSHIFT O vi ABSORBERS AND THEIR ASSOCIATED GALAXIES TOWARD 3C 263
Published in The Astrophysical journal (01-07-2012)“…Ultraviolet observations of the QSO 3C 263 (z sub(em) = 0.652) with Cosmic Origins Spectrograph and FUSE reveal O VI absorption systems at z = 0.06342 and…”
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Accretion of low-metallicity gas by the Milky Way
Published in Nature (London) (25-11-1999)“…Models of the chemical evolution of the Milky Way suggest that the observed abundances of elements heavier than helium ('metals') require a continuous infall…”
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C II Radiative Cooling of the Diffuse Gas in the Milky Way
Published in The Astrophysical journal (10-11-2004)“…The heating and cooling of the interstellar medium (ISM) allow the gas in the ISM to coexist at very different temperatures in thermal pressure equilibrium…”
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The evolution of the low-density H i intergalactic medium from z = 3.6 to 0: data, transmitted flux, and H i column density
Published in Monthly notices of the Royal Astronomical Society (01-03-2021)“…ABSTRACT We present a new, uniform analysis of the H i transmitted flux (F) and H i column density ($N_{\mathrm{H\,{\small I}}}$) distribution in the…”
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Dependence of Gas-Phase Abundances in the Interstellar Medium on Column Density
Published in The Astrophysical journal (01-12-2000)Get full text
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Revealing the Ionization Properties of the Magellanic Stream Using Optical Emission
Published in The Astrophysical journal (20-12-2017)“…The Magellanic Stream, a gaseous tail that trails behind the Magellanic Clouds, could replenish the Milky Way (MW) with a tremendous amount of gas if it…”
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HST/COS detection of a Ne viii absorber towards PG 1407+265: an unambiguous tracer of collisionally ionized hot gas?
Published in Monthly notices of the Royal Astronomical Society (21-01-2015)“…We report the detection of Ne viii in a ... = 0.599 61 absorber towards the QSO PG1407+265 (... = 0.94). Besides Ne viii, absorption from H i Lyman series…”
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Circumgalactic Gas at Its Extreme: Tidal Gas Streams around the Whale Galaxy NGC 4631 Explored with HST/COS
Published in The Astrophysical journal (01-12-2018)“…We present a detailed analysis of the absorption properties of one of the tidal gas streams around the "Whale" galaxy NGC 4631 in the direction of the quasar…”
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Physical Properties, Baryon Content, and Evolution of the Lyα Forest: New Insights from High-Resolution Observations at z 0.4
Published in The Astrophysical journal (01-04-2007)Get full text
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PRESENT-DAY GALACTIC EVOLUTION: LOW-METALLICITY, WARM, IONIZED GAS INFLOW ASSOCIATED WITH HIGH-VELOCITY CLOUD COMPLEX A
Published in The Astrophysical journal (20-12-2012)“…The high-velocity cloud Complex A is a probe of the physical conditions in the Galactic halo. The kinematics, morphology, distance, and metallicity of Complex…”
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High-resolution observations of interstellar Na i and Ca ii towards the southern opening of the ‘Local Interstellar Chimney’: probing the disc—halo connection
Published in Monthly notices of the Royal Astronomical Society (01-12-2002)“…We present high-resolution (R = 400 000) observations of interstellar Ca ii and Na i absorption lines towards seven stars in the direction of the southern…”
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Far Ultraviolet Spectroscopic Explorer Spectroscopy of High-Velocity Cloud Complex C
Published in The Astrophysical journal (20-07-2000)Get full text
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Multiphase High-Velocity Clouds toward HE 0226–4110 and PG 0953+414
Published in The Astrophysical journal (01-09-2005)“…We study the physical conditions, elemental abundances, and kinematics of the high-velocity clouds (HVCs) along the sight lines toward active galaxies HE…”
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PRESENT-DAY GALACTIC EVOLUTION: LOW-METALLICITY, WARM, IONIZED GAS INFLOW ASSOCIATED WITH HIGH-VELOCITY CLOUD COMPLEX A
Published in The Astrophysical journal (20-12-2012)Get full text
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FUSE Observations of Interstellar and Intergalactic Absorption toward the X-Ray-bright BL Lacertae Object Markarian 421
Published in The Astrophysical journal (01-02-2005)“…High-quality Far Ultraviolet Spectroscopic Explorer (FUSE) observations at 20 km s super(-1) resolution of interstellar and intergalactic absorption from 910…”
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WALLABY – an SKA Pathfinder H i survey
Published in Astrophysics and space science (01-07-2020)“…The Widefield ASKAP L-band Legacy All-sky Blind surveY ( wallaby ) is a next-generation survey of neutral hydrogen (H i ) in the Local Universe. It uses the…”
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