CAOSP abstracts, Volume: 34, No.: 3, year: 2004
- Author(s): Budaj, J.; Richards, M.T.
- Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 34, no. 3, p. 167-196.
- Date: 10/2004
- Title: A description of the shellspec code
- Keyword(s): Radiative transfer, Accretion, accretion discs, Stars: binaries: close, Stars: binaries: eclipsing, Stars: novae, cataclysmic variables
- Pages: 167 -- 196
Abstract:
Program shellspec
is designed to solve simple radiative transfer along the line
of sight in moving media. The scattered light from a central
object can be taken into account assuming an optically thin
environment. Output intensities are then integrated through
the 2D projection surface of a 3D object.
The assumptions include LTE and optional known state
quantities and velocity fields in 3D.
Optional (non)transparent objects such as a spot, disc, stream,
jet, shell or stars as well as an empty space may be defined
(embedded) in 3D and their composite synthetic spectrum
calculated. The stars may have the Roche geometry and
known intrinsic spectra.
Synthetic light curves or trailing spectrograms can be produced
by changing your view points on the 3D object.
An application to the accretion disc system of TT Hya type
(Algol-type eclipsing binary with a disc) is included and the influence
of various effects on the emerging spectrum is studied.
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