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Phenomenological modelling — an efficient tool for variable stars research

MIKULÁŠEK, Zdeněk

Basic information

Original name

Phenomenological modelling — an efficient tool for variable stars research

Authors

MIKULÁŠEK, Zdeněk (203 Czech Republic, guarantor, belonging to the institution)

Edition

European Week of Astronomy and Space Science, JENAM 2011, July 4 to 8 2011 in Saint-Petersburg, Russia, 2011

Other information

Language

English

Type of outcome

Vyžádané přednášky

Field of Study

10308 Astronomy

Country of publisher

Russian Federation

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/00216224:14310/11:00049550

Organization unit

Faculty of Science

Keywords (in Czech)

proměnné hvězdy;matematické modelování;světelné křivky

Keywords in English

variable stars;light curves;phenomenological modelling

Tags

International impact
Změněno: 8/4/2012 18:43, doc. RNDr. Miloslav Zejda, Ph.D.

Abstract

V originále

The phenomenological (mathematical) modelling of the observed stellar variability respecting the individuality of each studied variable object comes to be a surprisingly potent instrument for the variable stars research. Particularly, it is effective in solutions of everyday problems of observers engaged in the observation of periodical or nearly periodical types of variable stars and enables to exploit all available observational data as fully as possible. The phenomenological modelling is open for everybody who mastered the basis of PC programming. It enables the reliable determination of times of light curves extrema, the improvement of linear or more complex ephemeris of periodic variables, the study of apsidal motion of binaries and the influence of the third body in the system. At the top, the mathematic modelling applied primarily to original observational data due its transparency and straightforwardness is able to reveal the lacks in the basic treatment of the obtained observational material better than the favoured complex physical modelling. The efficiency of the new approach is documented by several examples.

Links

IAA301630901, research and development project
Name: Rozložení energie ve spektru horkých hvězd a jeho proměnnost
Investor: Academy of Sciences of the Czech Republic, Spectral energy distribution of hot stars and its variability
MUNI/A/0968/2009, interní kód MU
Name: Fyzika hvězd a hvězdných soustav (Acronym: FYHA)
Investor: Masaryk University, Category A