481 citations · 4.4k across the 93 of their papers we have counts for
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The nature of NV absorbers at high redshift
C. Fechner, P. Richter
We present a study of NV absorption systems at 1.5 < z < 2.5 in the optical spectra of 19 QSOs. Our analysis includes both absorbers arising from the intergalactic medium as well a…
CaII and NaI absorption signatures from extraplanar gas in the halo of the Milky Way
N. Ben Bekhti, P. Richter, T. Westmeier +1
We analyse absorption characteristics and physical conditions of extraplanar intermediate- and high-velocity gas to study the distribution of the neutral and weakly ionised Milky W…
Future instrumentation for the study of the Warm-Hot Intergalactic Medium
F. B. S. Paerels, J. S. Kaastra, T. Ohashi +3
We briefly review capabilities and requirements for future instrumentation in UV- and X-ray astronomy that can contribute to advancing our understanding of the diffuse, highly ioni…
FUV and X-ray absorption in the Warm-Hot Intergalactic Medium
P. Richter, F. B. S. Paerels, J. S. Kaastra
The Warm-Hot Intergalactic Medium (WHIM) arises from shock-heated gas collapsing in large-scale filaments and probably harbours a substantial fraction of the baryons in the local U…
Distances to Galactic high-velocity clouds. Complex C
B. P. Wakker, D. G. York, J. C. Howk +8
We report the first determination of a distance bracket for the high-velocity cloud (HVC) complex C. Combined with previous measurements showing that this cloud has a metallicity o…
Distances to Galactic high-velocity clouds. I. Cohen Stream, complex GCP, cloud g1
B. P. Wakker, D. G. York, R. Wilhelm +5
The high- and intermediate-velocity interstellar clouds (HVCs/IVCs) are tracers of energetic processes in and around the Milky Way. Clouds with near-solar metallicity about one kpc…