The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1
The X-ray binary with the neutron star (NS), KS 1731-260, displays superorbital cycle similar to that in Her X-1. The accretion disk had the memory of the cycle-length even when this modulation sometimes disappeared in the main outburst of KS 1731-260, and during anomalous low state in Her X-1. The...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Technical University in Prague
2014-12-01
|
| Series: | Acta Polytechnica CTU Proceedings |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/2403 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850052745660203008 |
|---|---|
| author | Vojtěch Šimon |
| author_facet | Vojtěch Šimon |
| author_sort | Vojtěch Šimon |
| collection | DOAJ |
| description | The X-ray binary with the neutron star (NS), KS 1731-260, displays superorbital cycle similar to that in Her X-1. The accretion disk had the memory of the cycle-length even when this modulation sometimes disappeared in the main outburst of KS 1731-260, and during anomalous low state in Her X-1. The disk still existed during such seasons. Although irradiation of the disk by X-rays is a viable explanation for the disk precession and warping (see model of Foulkes et al.), the mechanisms which give rise to the observed X-ray modulation are quite dierent for each of these systems. Variable absorption can explain this cycle only in Her X-1. We propose a variable mass accretion rate onto the NS in KS 1731-260 due to a highly variable impact of the inflowing mass stream with the changing phase of the cycle. |
| format | Article |
| id | doaj-art-448fbc3b49444fce99e09543ae8ddfda |
| institution | DOAJ |
| issn | 2336-5382 |
| language | English |
| publishDate | 2014-12-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-448fbc3b49444fce99e09543ae8ddfda2025-08-20T02:52:44ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822014-12-011124625010.14311/APP.2014.01.02462215The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1Vojtěch Šimon0Czech Technical University in Prague, FEL, Prague, Czech RepublicThe X-ray binary with the neutron star (NS), KS 1731-260, displays superorbital cycle similar to that in Her X-1. The accretion disk had the memory of the cycle-length even when this modulation sometimes disappeared in the main outburst of KS 1731-260, and during anomalous low state in Her X-1. The disk still existed during such seasons. Although irradiation of the disk by X-rays is a viable explanation for the disk precession and warping (see model of Foulkes et al.), the mechanisms which give rise to the observed X-ray modulation are quite dierent for each of these systems. Variable absorption can explain this cycle only in Her X-1. We propose a variable mass accretion rate onto the NS in KS 1731-260 due to a highly variable impact of the inflowing mass stream with the changing phase of the cycle.https://ojs.cvut.cz/ojs/index.php/APP/article/view/2403 |
| spellingShingle | Vojtěch Šimon The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1 Acta Polytechnica CTU Proceedings |
| title | The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1 |
| title_full | The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1 |
| title_fullStr | The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1 |
| title_full_unstemmed | The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1 |
| title_short | The X-Ray Binary KS 1731{260: Possible Analogy with Her X-1 |
| title_sort | x ray binary ks 1731 260 possible analogy with her x 1 |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/2403 |
| work_keys_str_mv | AT vojtechsimon thexraybinaryks1731260possibleanalogywithherx1 AT vojtechsimon xraybinaryks1731260possibleanalogywithherx1 |