PRELIMINARY STUDY OF RED SUPERGIANT RM_1-667 IN THE LARGE MAGELLANIC CLOUD

Автор(и)

  • V. F. Gopka Astronomical observatory, Odessa National University, Ukraine
  • A. Shavrina Main Astronomical observatory, NAS of Ukraine, Ukraine
  • S. Vasilyeva Astronomical observatory, Odessa National University, Ukraine
  • A. Yushchenko Astronomical observatory, Odessa National University, Ukraine
  • S. Andrievsky Astronomical observatory, Odessa National University, Ukraine
  • V. Yushchenko Astronomical observatory, Odessa National University, Ukraine

DOI:

https://doi.org/10.18524/1810-4215.2012.25.83241

Анотація

The observed lines of hydrogen and another strong lines in the spectrum of RM_1-667 (red region of spectra, 5900-7100 Å, spectral type is K7 I) are discussed. Analysis of these lines indicates the presence of mass outflow from the star at a significant velocity. Using the iron lines and the model atmospheres of supergiants (Teff = 3750 K - 4300 K) of the Kurucz' grid, we obtained the iron abundance lg ε (Fe) = 6.75-7.08, which is equivalent to [Fe/H] equal -0.75 to -0.42.

Посилання

Levesque E.: 2010, NewAR, 54, 1.

Hill V.: 1999, A&A, 324, 435.

Bonanos A.Z., Messa D.L., Sewilo M., et al.: 2009, Astron. J., 138, 1003.

Gurtovenko E.A., Kostik R.I.: 1981, A&AS, 46, 239.

Kurucz R.: 1993, CD-ROMs 1-23.

Gopka V.F., Yushchenko A.V., Goriely S., et al.: 1995, IAUS, 228, 535.

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Опубліковано

2012-11-15

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