On the question of detecting granulation signal in CoRoT light curves of A and B stars
We applied the procedure written by us to HgMn targets observed both through CoRoT astero and exo channels to check its usefulness for search of possible existence of solar-type granulation signature in their power spectrum. The point is that many articles appeared very recently considering this pro...
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| Published in: | Advances in Astronomy and Space Physics |
|---|---|
| Date: | 2013 |
| Main Author: | |
| Format: | Article |
| Language: | English |
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Головна астрономічна обсерваторія НАН України
2013
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/119416 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | On the question of detecting granulation signal in CoRoT light curves of A and B stars / S. Ghazaryan // Advances in Astronomy and Space Physics. — 2013. — Т. 3., вип. 1. — С. 20-22. — Бібліогр.: 10 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862708237775667200 |
|---|---|
| author | Ghazaryan, S. |
| author_facet | Ghazaryan, S. |
| citation_txt | On the question of detecting granulation signal in CoRoT light curves of A and B stars / S. Ghazaryan // Advances in Astronomy and Space Physics. — 2013. — Т. 3., вип. 1. — С. 20-22. — Бібліогр.: 10 назв. — англ. |
| collection | DSpace DC |
| container_title | Advances in Astronomy and Space Physics |
| description | We applied the procedure written by us to HgMn targets observed both through CoRoT astero and exo channels to check its usefulness for search of possible existence of solar-type granulation signature in their power spectrum. The point is that many articles appeared very recently considering this problem but, we did not find any paper on this issue in relation to chemically peculiar main-sequence stars. Because theoretical models based on atomic diffusion require that the atmospheres of ApBp stars have to be more stable than those of normal stars, presence
or absence of granulation on their surfaces should be an interesting information for modelling. The earliest results show that our method is appropriate for analysis of data obtained through astero and exo channels. Nowadays, solar-type granulation effect most likely has not be seen within CoRoT data for the stars we considered. This issue needs further consideration.
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| first_indexed | 2025-12-07T17:10:18Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-119416 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 2227-1481 |
| language | English |
| last_indexed | 2025-12-07T17:10:18Z |
| publishDate | 2013 |
| publisher | Головна астрономічна обсерваторія НАН України |
| record_format | dspace |
| spelling | Ghazaryan, S. 2017-06-06T19:02:21Z 2017-06-06T19:02:21Z 2013 On the question of detecting granulation signal in CoRoT light curves of A and B stars / S. Ghazaryan // Advances in Astronomy and Space Physics. — 2013. — Т. 3., вип. 1. — С. 20-22. — Бібліогр.: 10 назв. — англ. 2227-1481 https://nasplib.isofts.kiev.ua/handle/123456789/119416 We applied the procedure written by us to HgMn targets observed both through CoRoT astero and exo channels to check its usefulness for search of possible existence of solar-type granulation signature in their power spectrum. The point is that many articles appeared very recently considering this problem but, we did not find any paper on this issue in relation to chemically peculiar main-sequence stars. Because theoretical models based on atomic diffusion require that the atmospheres of ApBp stars have to be more stable than those of normal stars, presence
 or absence of granulation on their surfaces should be an interesting information for modelling. The earliest results show that our method is appropriate for analysis of data obtained through astero and exo channels. Nowadays, solar-type granulation effect most likely has not be seen within CoRoT data for the stars we considered. This issue needs further consideration. I would like to express my gratitude to my supervisors Georges Alecian and Hayk Harutyunyan for their valuable directions and hearty guidance during my PhD study. en Головна астрономічна обсерваторія НАН України Advances in Astronomy and Space Physics On the question of detecting granulation signal in CoRoT light curves of A and B stars Article published earlier |
| spellingShingle | On the question of detecting granulation signal in CoRoT light curves of A and B stars Ghazaryan, S. |
| title | On the question of detecting granulation signal in CoRoT light curves of A and B stars |
| title_full | On the question of detecting granulation signal in CoRoT light curves of A and B stars |
| title_fullStr | On the question of detecting granulation signal in CoRoT light curves of A and B stars |
| title_full_unstemmed | On the question of detecting granulation signal in CoRoT light curves of A and B stars |
| title_short | On the question of detecting granulation signal in CoRoT light curves of A and B stars |
| title_sort | on the question of detecting granulation signal in corot light curves of a and b stars |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/119416 |
| work_keys_str_mv | AT ghazaryans onthequestionofdetectinggranulationsignalincorotlightcurvesofaandbstars |