Astronomy Reports

, Volume 61, Issue 4, pp 361–367 | Cite as

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

  • N. Z. Ismailov
  • O. V. Khalilov
  • U. Z. Bashirova
  • A. N. Adigezalzade
  • S. A. Alishov


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.


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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • N. Z. Ismailov
    • 1
  • O. V. Khalilov
    • 1
  • U. Z. Bashirova
    • 1
  • A. N. Adigezalzade
    • 1
  • S. A. Alishov
    • 1
  1. 1.Tusi Shamakha Astrophysical ObservatoryNational Academy of Sciences of Azerbaijan, Mamedaliev SettlementShamakha regionAzerbaijan

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