State transitions in LMC X-3
| dc.creator | Soria, Roberto | |
| dc.creator | Page, Mat | |
| dc.creator | Wu, Kinwah | |
| dc.date | 2002-02-01 | |
| dc.date.accessioned | 2026-07-07T02:02:37Z | |
| dc.date.available | 2026-07-07T02:02:37Z | |
| dc.description | We carried out a multiwavelenght study of the black-hole candidate LMC X-3 with XMM-Newton. The system showed a transition to a low-hard state, in which the X-ray spectrum was well fitted by a simple power law. It then returned to a high-soft state, characterised by a strong disk-blackbody component. The line-of-sight absorption column density is <~ 4 x 10^{20} cm^{-2} consistent with the foreground Galactic absorption. This rules out wind accretion. We argue that, despite LMC X-3 being a high-mass X-ray binary, Roche-lobe overflow is the main mechanism of mass transfer. From UV/optical observations in the low-hard state, we determine that the companion is a slightly evolved B5 star with a mass M ~ 4.5 M_sun. This is indeed consistent with the secondary star being close to filling its Roche lobe. | |
| dc.description | to appear in the Proceedings of the Symposium "New Visions of the X-ray Universe in the XMM-Newton and Chandra Era", 26-30 November 2001, ESTEC, The Netherlands | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0202015 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0202015 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4099 | |
| dc.subject | Astrophysics | |
| dc.title | State transitions in LMC X-3 | |
| dc.type | text |