Circumstellar activity around the Herbig Ae/Be stars MWC 361, MWC 614, AB Aur


Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

A study of the optical spectra of three Herbig Ae/Be stars is presented: MWC 361,MWC 614, AB Aur. Variations of the equivalent widths, radial velocities, and profiles of spectral lines formed in different regions of the circumstellar environments of these stars are analyzed. The most active spectral variations are observed in the Hα, Hβ, and He I 5876 lines. Other emission lines, such as Si II λλ6347, 6371 Åand [O I] λλ6300, 6363 Å, also display variations, but these are much smaller. Interstellar DIBs at λλ5780 and 5797 ˚A were detected for the stars MWC 361 and MWC 614 for the first time. The active processes that are underway in the circumstellar environments of these systems can also reach more distant, outer parts of their circumstellar disks.

Sobre autores

N. Ismailov

Tusi Shamakha Astrophysical Observatory

Autor responsável pela correspondência
Email: ismailovn@yahoo.com
Azerbaijão, Shamakha region, 373243

O. Khalilov

Tusi Shamakha Astrophysical Observatory

Email: ismailovn@yahoo.com
Azerbaijão, Shamakha region, 373243

U. Bashirova

Tusi Shamakha Astrophysical Observatory

Email: ismailovn@yahoo.com
Azerbaijão, Shamakha region, 373243

A. Adigezalzade

Tusi Shamakha Astrophysical Observatory

Email: ismailovn@yahoo.com
Azerbaijão, Shamakha region, 373243

S. Alishov

Tusi Shamakha Astrophysical Observatory

Email: ismailovn@yahoo.com
Azerbaijão, Shamakha region, 373243

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML

Declaração de direitos autorais © Pleiades Publishing, Ltd., 2017