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Steady advection–diffusion around finite absorbers in two-dimensional potential flows
Steady advection–diffusion finite absorbers two-dimensional potential flows
2015/10/16
We consider perhaps the simplest non-trivial problem in advection–diffusion – a finite absorber of arbitrary cross-section in a steady two-dimensional potential flow of concentrated fluid. This proble...
Simulations of damped Ly alpha and Lyman limit absorbers in different cosmologies: Implications for structure formation at high redshift
formation large scale structure of the Universe
2014/12/26
We use hydrodynamic cosmological simulations to study damped Lyα (DLA) and Lyman limit (LL) absorption at redshifts z = 2-4 in five variants of the cold dark matter scenario: COBE-normalized (CCDM), c...
Measuring the halo mass of z similar to 3 damped Ly alpha absorbers from the absorber-galaxy cross-correlation
high-redshift absorption lines
2014/12/24
We test the reliability of a method to measure the mean halo mass of absorption-line systems such as damped Lyα absorbers (DLAs). The method is based on measuring the ratio of the cross-correlation be...
The observed intergalactic O VI absorbers at z>0 have been regarded as a significant reservoir of the "missing baryons." However, to fully understand how these absorbers contribute to the baryon inven...
Galactic outflows and the kinematics of damped Lyman alpha absorbers
Galactic outflows kinematics
2014/12/22
The kinematics of damped Lyman alpha absorbers (DLAs) are difficult to reproduce in hierarchical galaxy formation models, particularly the preponderance of wide systems. We investigate DLA kinematics ...
The clustering of galaxies around damped absorbers
Clustering damping Galaxy Wide-angle image The redshift slices. Bayesian metering redshift technology
2014/12/9
We measured the clustering of galaxies around damped absorbers, all at a redshift of approximately three. For this purpose, we used wide-field images that covered a total area of one square degree. We...
GRB 070125 and the environments of spectral-line poor afterglow absorbers
gamma-ray burst: individual: GRB070125
2011/10/11
GRB 070125 is among the most energetic bursts detected and the most extensively observed so far. Nevertheless, unresolved issues are still open in the literature on the physics of the afterglow and on...
Chandra Letgs spectroscopy of ionized absorbers: The quasar MR 2251-178
ionized absorbers spectroscopy quasar MR 2251-178
2009/7/9
Chandra Letgs spectroscopy of ionized absorbers: The quasar MR 2251-178。
Physical properties of absorbers in high redshift quasars
Physical properties high redshift quasars
2009/7/1
Physical properties of absorbers in high redshift quasars。
Large scale absorbers in the environment of high-z radio-galaxies。
X-ray plasma diagnostics for totally and partially photoionized plasmas such as warm absorbers in agn
X-ray plasma diagnostics agn photoionized plasmas
2009/6/5
X-ray plasma diagnostics for totally and partially photoionized plasmas such as warm absorbers in agn。
MINIHALO MODEL FOR THE LOW-REDSHIFT Lyα ABSORBERS REVISITED
quasars absorption lines-Galaxies halos-dark matter
2009/2/9
We reconsider the basic properties of the classical minihalo model
of Rees and Milgrom in light of the new work, both observational (on "dark galax-
ies" and masses of baryonic haloes) and theoretic...