| Autor: |
I. A. Verlyuk |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Odessa Astronomical Publications, Vol 29, Iss 0, Pp 103-104 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
1810-4215 |
| DOI: |
10.18524/1810-4215.2016.29.85064 |
| Popis: |
Spectral monitoring of the flare star YZ CMi (U = 12.9, B = 12.7, V = 11.1) was carried out on the Zeiss-600 telescope at the Peak Terskol Observatory. We used a low resolution grating spectrograph with spectral resolution of ~ 100 Å and time resolution from 2 to 30 s. The spectra of the star in the quiescent state show variability in the lines Hβ, Hγ, Mg b, possibly in CaII K + Hε. Variations of the equivalent widths of the order of several percents were detected. The characteristic time of variations is about of a few minutes. The observed variations indicate the non-stationary activity of the flare star YZ CMi chromosphere in the quiescent state. Stars; variability; methods: statistical; stars: late-type |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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