THE SPECTROSCOPY OF THE PULSATING CARBON STAR R Lep

Автор(и)

  • L. Zacs Institute of Atomic Physics and Spectroscopy, University of Latvia 19 Rainis blvd., Riga, LV-1586, Latvia, Латвія
  • O. Alksnis Institute of Atomic Physics and Spectroscopy, University of Latvia 19 Rainis blvd., Riga, LV-1586, Latvia, Латвія

DOI:

https://doi.org/10.18524/1810-4215.2005.18.98274

Ключові слова:

Stars, carbon, stars, oscillations, (stars, ) circumstellar matter, individual, R Lep

Анотація

The first results of detailed spectroscopy are presented for carbon Mira R Leporis. This long-period variable is undergoing deep fadings, apparently caused by dust formation around the star. High-resolution CCD spectra were observed for two seasons. The heliocentric photospheric radial velocity was found to be +32.6 and +38.4 km s-1, respectively. Blueshifted emissions from the circumstellar gas are seen.

Посилання

Mattei J.A., Foster G.: 2000, in Wing R.F., ed., Proc. IAU Symp.177, The carbon Star Phenomenon, Kluwer, Dordrecht, p. 155.

Raveendran A.V.: 2002, MNRAS, 336, 992.

Whitelock P. A., Feast M.W., Marang F., Overbeek M.D.: 1997, MNRAS, 288, 512.

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Опубліковано

2017-04-10

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