Spectral activity episode of the Be-shell star Pleione in 2013-2018

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00570194" target="_blank" >RIV/67985815:_____/23:00570194 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.astro.bas.bg/AIJ/issues/n39/LIliev.pdf" target="_blank" >https://www.astro.bas.bg/AIJ/issues/n39/LIliev.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Spectral activity episode of the Be-shell star Pleione in 2013-2018

Popis výsledku v původním jazyce

Pleione is well known as a prototype of a group of similar Be-stars, among the vast diversity of active B type stars. Its transitions between cyclic decades-long periods of having a spectrum with intense emission lines or a spectrum with sharp absorption lines is traced already for more than a century. In the present study we report an episode of Ha emission activity in the spectrum of the Be-shell star Pleione in 2016. It was documented with high resolution spectral observations carried out at VLT (ESO). The outburst of H alpha emission was superimposed onto a gradual spectral changes during the development of a shell spectral phase of Pleione. The H alpha outburst was accompanied by synchronized activity in the H beta line.

Název v anglickém jazyce

Spectral activity episode of the Be-shell star Pleione in 2013-2018

Popis výsledku anglicky

Pleione is well known as a prototype of a group of similar Be-stars, among the vast diversity of active B type stars. Its transitions between cyclic decades-long periods of having a spectrum with intense emission lines or a spectrum with sharp absorption lines is traced already for more than a century. In the present study we report an episode of Ha emission activity in the spectrum of the Be-shell star Pleione in 2016. It was documented with high resolution spectral observations carried out at VLT (ESO). The outburst of H alpha emission was superimposed onto a gradual spectral changes during the development of a shell spectral phase of Pleione. The H alpha outburst was accompanied by synchronized activity in the H beta line.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bulgarian astronomical journal

ISSN

1313-2709

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

BG - Bulharská republika

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

000930553500001

EID výsledku v databázi Scopus

2-s2.0-85149112598