Preparation of Spectra for Surface Mapping with Doppler Imaging of a Peculiar Star V776 Her

International Physics Conference at the Anatolian Peak 2016

Gürsoytrak, Hande^1 ; Gürol, Birol^1

Astronomy and Space Sciences Department, Faculty of Science, Ankara University, Tandoan, Ankara, Turkey^1

关键词: Chemically peculiar-stars;    Doppler imaging;    Spectral observations;    Surface mapping;    Synthetic spectra;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/707/1/012042/pdf
DOI  :  10.1088/1742-6596/707/1/012042

来源: IOP

【 摘 要 】

Our Sun is the only star that we can see thoroughly the surface of it. Chemically peculiar stars show anomalous abundances of some elements such as silicium, chromium and strontium. Doppler imaging is a useful technique for reconstructing the several structures on the surfaces of peculiar stars. We analyze our spectral observations as a preparation to Doppler imaging and compare V776 Her's observational spectra with the synthetic spectra that we produce with using the SPECTRUM code. The differences between the observational spectra and the synthetic spectra is discussed in this work.