5 papers · 1 filter
A Measurement of the Three-Dimensional Clustering of C IV Absorption-Line Systems on Scales of 5 to 300 Mpc
Ji Meng Loh, Jean M. Quashnock, Michael L. Stein
We examine the three-dimensional clustering of C IV absorption-line systems, using an extensive catalog of QSO heavy-element absorbers drawn from the literature. We measure cluster…
Damped Lyman alpha systems at z=0.68 and z=1.15 towards HE 1122-1649 and HE 0515-4414
A. de la Varga, D. Reimers, D. Tytler +2
Detailed analysis of the spectral lines from two low redshift damped Lyman alpha absorbers (DLA) confirms that they are a heterogeneous population. Both systems have low metal abun…
Estimating the K-function of a point process with an application to cosmology
Michael L. Stein, Jean M. Quashnock, Ji Meng Loh
Motivated by the study of an important data set for understanding the large-scale structure of the universe, this work considers the estimation of the reduced second moment functio…
Kelvin-Helmholtz instability in three dimensional radiative jets
M. Micono, G. Bodo, S. Massaglia +3
The analysis of the stability properties of astrophysical jets against Kelvin-Helmholtz (or shear-layer) instabilities plays a basic role in the understanding the origin and physic…
Capillary-gravity wave transport over spatially random drift
Guillaume Bal, Tom Chou
We derive transport equations for the propagation of water wave action in the presence of a static, spatially random surface drift. Using the Wigner distribution $\W(\x,\k,t)$ to r…