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19972026
most citedThe High-Redshift He II Gunn-Peterson Effect: Implications and Future Prospects

145 citations · 2.1k across the 42 of their papers we have counts for

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astro-ph2008★ 14 cited

An Assessment of Broadband Optical Colours as Age Indicators for Star Clusters

M. Hancock, B. J. Smith, M. L. Giroux +1

We present an empirical assessment of the use of broadband optical colours as age indicators for unresolved extragalactic clusters and investigate stochastic sampling effects on in…

astro-ph2008★ 44 cited

Stochastic `Beads on a String' in the Accretion Tail of Arp 285

B. J. Smith, C. Struck, M. Hancock +6

We present Spitzer infrared, GALEX UV, and SDSS and SARA optical images of the peculiar interacting galaxy pair Arp 285 (NGC 2856/4), and compare with a new numerical model of the…

astro-ph2007★ 27 cited

The Metallicity of Intergalactic Gas in Cosmic Voids

John T. Stocke, Charles W. Danforth, J. Michael Shull +2

We have used the Hubble/STIS and FUSE archives of ultraviolet spectra of bright AGN to identify intergalactic Lya absorbers in nearby (z < 0.1) voids. From a parent sample of 651 L…

astro-ph2006★ 73 cited

Metallicity and Ionization in High Velocity Cloud Complex C

J. A. Collins, J. M. Shull, M. L. Giroux

We analyze HST and FUSE ultraviolet spectroscopic data for eleven sight lines passing through the infalling high velocity cloud (HVC) Complex C. These sight lines pass through regi…

astro-ph2006★ 49 cited

Large-scale Star Formation Triggering in the Low-mass Arp 82 System: A Nearby Example of Galaxy Downsizing Based on UV/Optical/Mid-IR Imaging

Mark Hancock, Beverly J. Smith, Curtis Struck +4

As part of our Spitzer Spirals, Bridges, and Tails project to help understand the effects of galaxy interactions on star formation, we analyze GALEX ultraviolet, SARA optical, and…

astro-ph2006★ 68 cited

The UV spectrum of HS1700+6416 II. FUSE observations of the HeII Lyman alpha forest

C. Fechner, D. Reimers, G. A. Kriss +11

We present the far-UV spectrum of the quasar HS1700+6416 taken with FUSE. This QSO provides the second line of sight with the HeII absorption resolved into a Ly alpha forest struct…