A search for pulsation in twenty-one white dwarfs
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2020
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| _version_ | 1866814375158874112 |
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| author | E. Paunzen |
| author_facet | E. Paunzen |
| contents | A search for pulsation in twenty-one white dwarfs E. Paunzen G. Handler J. Janík Z. Zemanová M. Rode-Paunzen M. S. O’Brien T. K. Watson M. Dróżdż Física, Astronomía y Matemáticas Stars general variables white dwarfs Well-defined astrophysical constraints of white dwarfs (WDs), such as on the presence or absence of pulsational variability, are very much needed to refine and develop current models. Because these stars are rather faint and variability periods are mostly below one hour, only a very limited amount of space-based data is currently available for these objects. We present about 68 hours of high-quality ground-based photometric time-series data for twenty-one WDs acquired at five different observatories. No new pulsators were detected but the derived upper limits of variability, which are typically on the order of only a few mmags, provide important input for pulsation models. 2020 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57171663002 https://www.redalyc.org/journal/571/57171663002/ https://www.redalyc.org/journal/571/57171663002/html/ https://www.redalyc.org/journal/571/57171663002/57171663002.epub https://www.redalyc.org/journal/571/57171663002/movil 10.22201/ia.01851101p.2020.56.02.02 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.56 |
| format | Artículo científico |
| id | redalyc_57171663002 |
| language | en |
| publishDate | 2020 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | A search for pulsation in twenty-one white dwarfs E. Paunzen Física, Astronomía y Matemáticas Stars general variables white dwarfs A search for pulsation in twenty-one white dwarfs E. Paunzen G. Handler J. Janík Z. Zemanová M. Rode-Paunzen M. S. O’Brien T. K. Watson M. Dróżdż Física, Astronomía y Matemáticas Stars general variables white dwarfs Well-defined astrophysical constraints of white dwarfs (WDs), such as on the presence or absence of pulsational variability, are very much needed to refine and develop current models. Because these stars are rather faint and variability periods are mostly below one hour, only a very limited amount of space-based data is currently available for these objects. We present about 68 hours of high-quality ground-based photometric time-series data for twenty-one WDs acquired at five different observatories. No new pulsators were detected but the derived upper limits of variability, which are typically on the order of only a few mmags, provide important input for pulsation models. 2020 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57171663002 https://www.redalyc.org/journal/571/57171663002/ https://www.redalyc.org/journal/571/57171663002/html/ https://www.redalyc.org/journal/571/57171663002/57171663002.epub https://www.redalyc.org/journal/571/57171663002/movil 10.22201/ia.01851101p.2020.56.02.02 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.56 |
| title | A search for pulsation in twenty-one white dwarfs |
| topic | Física, Astronomía y Matemáticas Stars general variables white dwarfs |
| url | https://www.redalyc.org/articulo.oa?id=57171663002 https://www.redalyc.org/journal/571/57171663002/ https://www.redalyc.org/journal/571/57171663002/html/ https://www.redalyc.org/journal/571/57171663002/57171663002.epub https://www.redalyc.org/journal/571/57171663002/movil |