... the radiative transfer equation (RTE) for the randomly-irregular magnetized plasma has been derived on the base of general grounds of the multiple scattering theory . ... Solutions of several absolute tasks of the scattering theory have been obtained (on the optical depth of the ionospheric plasma layer, on the value of radio wave anomalous attenuation, on anomalous refraction, on the backscattered signal intensity for the source being placed within a plasma layer). ...

... VLA observations and Tully-Fisher distances of gas-poor spiral galaxies in the Virgo Cluster Region . ... The HI-H2 Pressure Relation In Early-Type Galaxies . ... Tracing evolution of early-type spirals through the neutral hydrogen window . ... An Arecibo HI 21-cm Absorption Survey of Rich Abell Clusters . ... The Arecibo Ultra-Deep Survey . ... Absorption in varying galactic environments seen in HI surveys . ... Early-type galaxies with neutral hydrogen in the Virgo cluster from the ALFALFA survey ...

. This page will present links to some freely available codes and a description of our codes with results of their test runs. link to Wriedt's list of light scattering codes . link to Flatau's list of light scattering codes . our light scattering codes (realizing both exact and approximate methods) . our favorite light scattering codes (modified codes of other authors) . an overview of the range of applicability of our codes (with figures) To the top . Created by V.I. Last modified: 02/10/00, V.I.

We investigate the far-infrared (IR) dust emission for 20 local star forming galaxies from the Key Insights on Nearby Galaxies: A Far-IR Survey with Herschel (KINGFISH) sample. ... Our fitting method allows us to investigate the resolved nature of temperature and emissivity variations by modeling from the galaxy centers to the outskirts (physical scales of ~15-50 kpc, depending on the size of the galaxy). ...

... Galaxy Evolution home . Cavendish Astrophysics . Cavendish Laboratory . ... Cosmological evolution of star-forming galaxies . The origin and evolution of radio sources . Radio sources and their environments . ... Publications . ... Submitted . ... Calendar . ... Paul Alexander . P.Alexander@mrao.cam.ac.uk . ...

... Programme . ... Abstract: Globular clusters can probe the formation history of galaxies by providing evidence for the chemical evolution and major episodes of star formation in their host galaxies, by examining their kinematic signatures, as well as their structural parameters. ... The giant elliptical NGC 5128 (Centaurus A), at a mere 4 Mpc away, gives us the only opportunity to study in extensive detail the globular cluster system of a recent merger galaxy. ...

Next: The Quasi--Newton Method. Up: Outline of the Previous: The Newton--Raphson Method. ... At each iteration, one computes . ... Neglecting the second derivatives matrix , we obtain the ``normal equations'' and the Gauss--Newton direction . This so--called Gauss--Newton method is intended for problems where is small. ... The algorithm implemented here is a modification of that Gauss--Newton method, that allows convergence even for rank deficient Jacobians or for large residuals. ...

... Wiebe D.S., Shematovich V.I., and Shustov B.M.        Chemical and dynamical evolution of protostellar clouds: initial stages of collapse ( abstract ). ... Shematovich V.I., Wiebe D.S., and Shustov B.M.      Chemical and dynamical evolution of protostellar clouds: chemistry at early stages of collapse ( abstract ). ... Li, Z.-Y., Shematovich, V. I. , Wiebe , D. S., and Shustov , B. M.      A Coupled Dynamical and Chemical Model of Starless Cores of Magnetized Molecular Clouds. ...