Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data
Long term modulations have been detected in a wide variety of both low and high-mass X-ray binaries. The All Sky Monitor on board the Rossi X-ray Timing Explorer provides the most extensive (~15 years) and sensitive X-ray archive for studying such behaviour. Since those variations were often intermi...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2015-02-01
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| Series: | Acta Polytechnica CTU Proceedings |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/2859 |
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| author | M. M. Kotze P. A. Charles |
| author_facet | M. M. Kotze P. A. Charles |
| author_sort | M. M. Kotze |
| collection | DOAJ |
| description | Long term modulations have been detected in a wide variety of both low and high-mass X-ray binaries. The All Sky Monitor on board the Rossi X-ray Timing Explorer provides the most extensive (~15 years) and sensitive X-ray archive for studying such behaviour. Since those variations were often intermittent and/or aperiodic, we used a time-dependent Dynamic Power Spectrum method to examine how the modulations themselves vary with time in a systematic way. Some were found to be remarkably stable, while others show a range of properties, from even longer variability time-scales to quite chaotic behaviour. |
| format | Article |
| id | doaj-art-43c4e58d6a9c48d7b4567fe1f6efd78b |
| institution | Kabale University |
| issn | 2336-5382 |
| language | English |
| publishDate | 2015-02-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-43c4e58d6a9c48d7b4567fe1f6efd78b2025-08-20T03:33:11ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822015-02-012112713210.14311/APP.2015.02.01282627Investigating Long-Term Behaviour of X-ray Binaries Using Archival DataM. M. Kotze0P. A. Charles1South African Astronomical Observatory, P.O. Box 9, Observatory 7935, South Africa (SA) Astrophysics, Cosmology and Gravity Centre (ACGC), Astronomy Department, University of Cape Town, Rondebosch 7701, SAAstrophysics, Cosmology and Gravity Centre (ACGC), Astronomy Department, University of Cape Town, Rondebosch 7701, SA School of Physics & Astronomy, University of Southampton, Southampton SO17 1BJ, UKLong term modulations have been detected in a wide variety of both low and high-mass X-ray binaries. The All Sky Monitor on board the Rossi X-ray Timing Explorer provides the most extensive (~15 years) and sensitive X-ray archive for studying such behaviour. Since those variations were often intermittent and/or aperiodic, we used a time-dependent Dynamic Power Spectrum method to examine how the modulations themselves vary with time in a systematic way. Some were found to be remarkably stable, while others show a range of properties, from even longer variability time-scales to quite chaotic behaviour.https://ojs.cvut.cz/ojs/index.php/APP/article/view/2859 |
| spellingShingle | M. M. Kotze P. A. Charles Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data Acta Polytechnica CTU Proceedings |
| title | Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data |
| title_full | Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data |
| title_fullStr | Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data |
| title_full_unstemmed | Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data |
| title_short | Investigating Long-Term Behaviour of X-ray Binaries Using Archival Data |
| title_sort | investigating long term behaviour of x ray binaries using archival data |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/2859 |
| work_keys_str_mv | AT mmkotze investigatinglongtermbehaviourofxraybinariesusingarchivaldata AT pacharles investigatinglongtermbehaviourofxraybinariesusingarchivaldata |