SPECTRAL PROPERTIES OF THE STAR HD 141569 IN THE OPTICAL RANGE

Authors

  • H. N. Adigozalzade
  • U. Z. Bashirova
  • N. Z. Ismailov
  • S. A. Alishov
  • A. Z. Aghayeva
  • A. A. Aghayeva

Keywords:

Pre-main sequence stars, circumstellar disks, star formation, HD141569

Abstract

In this work, the results of homogeneous spectral observations of HD 141569 of the Herbig Ae type star conducted at the Shamakhy Astrophysical Observatory in 2017-2018 are presented. It was shown for the first time that the spectrophotometric parameters of emission lines show both short-term (days) and long-term (years) variations. The reason for the variability in the emission spectrum in the optical range can be explained by the stellar wind and disk accretion. Based on the obtained spectral characteristics, it is shown that the star belongs to the class of β Pic-type fragmented protoplanetary debris disk stars.

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Published

2024-02-23

Issue

Vol. 18 No. 2 (2023)

Section

Articles