519 citations · 4.5k across the 73 of their papers we have counts for
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The Baryon Census in a Multiphase Intergalactic Medium: 30% of the Baryons May Still Be Missing
J. Michael Shull, Britton D. Smith, Charles W. Danforth
For low-redshift cosmology and galaxy formation rates, it is important to account for all the baryons synthesized in the Big Bang. Although galaxies and clusters contain 10% of the…
An HST/COS Search for Warm-Hot Baryons in the Mrk421 Sightline
Charles W. Danforth, John T. Stocke, Brian A. Keeney +4
Thermally-broadened Lya absorbers (BLAs) offer an alternate method to using highly-ionized metal absorbers (OVI, OVII, etc.) to probe the warm-hot intergalactic medium (WHIM, T=10^…
Broad Ly alpha Emission from Three Nearby BL Lacertae Objects
John T. Stocke, Charles W. Danforth, Eric S. Perlman
We present far-UV HST/COS spectra of four nearby BL Lac Objects. BL Lac spectra are dominated by a smooth, power-law continuum which arises in a relativistic jet. However, the spec…
Multiple Absorption-Line Spectroscopy of the Intergalactic Medium. I. Model
Yangsen Yao, J. Michael Shull, Charles W. Danforth +2
We present a physically-based absorption-line model for the spectroscopic study of the intergalactic medium (IGM). This model adopts results from Cloudy simulations and theoretical…