THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY Persei
DY Per (CGCS 372) was suspected to be an R CrB star based on the photometry by Alksnis (1994). Subsequent photometric monitoring revealed a number of sudden light declines typical for R CrB variables superimposed on the 792-day cycle of long-period light variations (Alksnis et al. 2002). However,...
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| Format: | Article |
| Language: | English |
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Odessa I. I. Mechnykov National University
2017-04-01
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| Series: | Odessa Astronomical Publications |
| Online Access: | http://oap.onu.edu.ua/article/view/98273 |
| _version_ | 1818032405776171008 |
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| author | L. Zacs |
| author_facet | L. Zacs |
| author_sort | L. Zacs |
| collection | DOAJ |
| description | DY Per (CGCS 372) was suspected to be an R CrB star based on the photometry by Alksnis (1994). Subsequent photometric monitoring revealed a number of sudden light declines typical for R CrB variables superimposed on the 792-day cycle of long-period light variations (Alksnis et al. 2002). However, the temperature of this star is much lower than average for other R CrB stars. Moreover, the luminosity of DY Per was suspected to be lower than usually for R CrBs. Keenan & Barnbaum (1997) estimated Teff ≃ 3500 K using the standard criteria of spectral classification and a giant luminosity. DY Per was classified as R8, C4,5, C5,4p, and C-Hd 4.5 C26 (Keenan & Barnbaum, 1997). Alcock et al. (2001) revealed four stars similar to the Galactic variable DY Per among eight RCBs discovered in the Large Magellanic Cloud. |
| first_indexed | 2024-12-10T06:06:51Z |
| format | Article |
| id | doaj.art-e7d34941728a4a809590b2cb1f9d1dc0 |
| institution | Directory Open Access Journal |
| issn | 1810-4215 |
| language | English |
| last_indexed | 2024-12-10T06:06:51Z |
| publishDate | 2017-04-01 |
| publisher | Odessa I. I. Mechnykov National University |
| record_format | Article |
| series | Odessa Astronomical Publications |
| spelling | doaj.art-e7d34941728a4a809590b2cb1f9d1dc02022-12-22T01:59:41ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152017-04-0118010.18524/1810-4215.2005.18.9827398273THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY PerseiL. Zacs0Institute of Atomic Physics and Spectroscopy, University of Latvia 19 Rainis blvd., Riga, LV-1586, LatviaDY Per (CGCS 372) was suspected to be an R CrB star based on the photometry by Alksnis (1994). Subsequent photometric monitoring revealed a number of sudden light declines typical for R CrB variables superimposed on the 792-day cycle of long-period light variations (Alksnis et al. 2002). However, the temperature of this star is much lower than average for other R CrB stars. Moreover, the luminosity of DY Per was suspected to be lower than usually for R CrBs. Keenan & Barnbaum (1997) estimated Teff ≃ 3500 K using the standard criteria of spectral classification and a giant luminosity. DY Per was classified as R8, C4,5, C5,4p, and C-Hd 4.5 C26 (Keenan & Barnbaum, 1997). Alcock et al. (2001) revealed four stars similar to the Galactic variable DY Per among eight RCBs discovered in the Large Magellanic Cloud.http://oap.onu.edu.ua/article/view/98273 |
| spellingShingle | L. Zacs THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY Persei Odessa Astronomical Publications |
| title | THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY Persei |
| title_full | THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY Persei |
| title_fullStr | THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY Persei |
| title_full_unstemmed | THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY Persei |
| title_short | THE COOL GALACTIC R Coronae BOREALIS VARIABLE DY Persei |
| title_sort | cool galactic r coronae borealis variable dy persei |
| url | http://oap.onu.edu.ua/article/view/98273 |
| work_keys_str_mv | AT lzacs thecoolgalacticrcoronaeborealisvariabledypersei AT lzacs coolgalacticrcoronaeborealisvariabledypersei |