155 citations · 450 across the 7 of their papers we have counts for
7 papers
Galaxy counterparts of intervening high-z sub-DLAs/DLAs and MgII absorbers towards gamma-ray bursts
S. Schulze, J. P. U. Fynbo, B. Milvang-Jensen +19
We present the first search for galaxy counterparts of intervening high-z (2<z< 3.6) sub-DLAs and DLAs towards GRBs. Our final sample comprises of five intervening sub-DLAs and DLA…
The End of Helium Reionization at z~2.7 Inferred from Cosmic Variance in HST/COS HeII Lyman Alpha Absorption Spectra
Gábor Worseck, J. Xavier Prochaska, Matthew McQuinn +6
We report on the detection of strongly varying intergalactic HeII absorption in HST/COS spectra of two z~3 quasars. From our homogeneous analysis of the HeII absorption in these an…
Cosmological radiative transfer for the line-of-sight proximity effect
Adrian M. Partl, Aldo Dall'Aglio, Volker Müller +1
We study the proximity effect in the Ly-a forest around high redshift quasars as a function of redshift and environment employing a set of 3D radiative transfer simulations. The an…
A Measurement of Small Scale Structure in the 2.2 < z < 4.2 Lyman-alpha Forest
Adam Lidz, C. -A. Faucher-Giguere, Aldo Dall'Aglio +5
The amplitude of fluctuations in the Ly-a forest on small spatial scales is sensitive to the temperature of the IGM and its spatial fluctuations. The temperature of the IGM and its…
Analysis of methods for detecting the proximity effect in quasar spectra
Aldo Dall'Aglio, Nickolay Y. Gnedin
Using numerical simulations of structure formation, we investigate multiple methods of determining the strength of the proximity effect in the HI Lyalpha forest. We analyze three h…
An unbiased measurement of the UV background and its evolution via the proximity effect in quasar spectra
Aldo Dall'Aglio, Lutz Wisotzki, Gabor Worseck
We used 40 high resolution, high S/N QSO spectra at 2.1<z<4.7 to search for the signature of the proximity effect in the HI Lyalpha forest. Comparing the effective optical depth ne…
The transverse proximity effect in spectral hardness on the line of sight towards HE 2347-4342
G. Worseck, C. Fechner, L. Wisotzki +1
We report the discovery of 14 quasars in the vicinity of HE2347-4342, one of the two quasars whose intergalactic HeII forest has been resolved with FUSE. By analysing the HI and th…