Home > Search Results: keywords:"Be stars - spectroscopic binaries - long-term time variations"
Search:
Search Tips :: Advanced Search
Search collections:
Sort by: Display results: Output format:
National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
A study of the long-term brightness and colour variations of the Be star 88 Herculis
 Vitovský, Kristián ; Harmanec, Petr (advisor) ; Korčáková, Daniela (referee)
Photometric observations of the Be star 88 Herculis from 12 different sources were collected covering a period from 1968 to 2019 for the purpose of studying variations on the timescale of years to decades. All the used data was either available in or transformed into the Johnson Standard system. Since systematic photometric observations began in the 1970's the star underwent three long-term variation cycles that differ in strength and length. A quantitative description of each cycle is given. The data suggests that the star is also changing on an even longer timescale in both luminosity and colour. The photometric data was compared to the evolution of the Hα emission line and discussed in connection to possible physical models. It is shown that he object exhibits behavior that corresponds to what is described in literature as the Negative correlation. 1
Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.
Digital Repository :: Search :: Submit :: Personalize :: Help
Powered by Invenio v1.1.2
Maintained by admin.invenio@techlib.cz
This site is also available in the following languages:
Česky  English