From stars to quasars: modeling radiation-dominated objects in astrophysics

Title:

From stars to quasars: modeling radiation-dominated objects in astrophysics

Creator:

Hubeny, Ivan

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:9d58a841-7804-4cab-9683-42fc2ac41f9e
uuid:9d58a841-7804-4cab-9683-42fc2ac41f9e

Subject:

stellar atmospheres, accretion disks, active galaxies, and radiative transfer

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

There is a whole class of astronomical objects for which radiation is not only a probe of the physical state, but is to fact an important energy balance agent. In these objects, radiative transfer plays a crucial role. Typical examples of such a situation are stellar atmospheres, interstellar matter and various structures within, and accretion disks, both around stellar mass degenerate objects (cataclysmic variables), and around supermassive black holes (quasars). We concentrate on two objects - stellar atmospheres and quasar accretion disks, and approach. We will give a brief overview of recent progress in their modeling. On the stellar atmosphere side, very sophisticated non-LTE models including millions of lines are now being constructed. It is shown that they provide and excellent match to high-quality ground- and space-based spectra. In quasar modeling, we have constructed a grid of non-LTE disk models for a wide range of parameters, and begun a study of analysing observed data using the new models.

Language:

Czech

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Coverage:

[1]-8

Source:

Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic | 2001 Volume:89 | Number:89

Harvested from:

CDK

Metadata only:

false