dc.creator | Luna, Gerardo Juan Manuel | |
dc.creator | Mukai, K. | |
dc.creator | Sokoloski, J. L. | |
dc.creator | Nelson, T. | |
dc.creator | Kuin, P. | |
dc.creator | Segreto, A. | |
dc.creator | Cusumano, Julio Ricardo | |
dc.creator | Jaque Arancibia, Marcelo Daniel | |
dc.creator | Nuñez, Natalia Edith | |
dc.date.accessioned | 2019-10-18T15:29:50Z | |
dc.date.accessioned | 2022-10-15T14:11:56Z | |
dc.date.available | 2019-10-18T15:29:50Z | |
dc.date.available | 2022-10-15T14:11:56Z | |
dc.date.created | 2019-10-18T15:29:50Z | |
dc.date.issued | 2018-11 | |
dc.identifier | Luna, Gerardo Juan Manuel; Mukai, K.; Sokoloski, J. L.; Nelson, T.; Kuin, P.; et al.; Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis; EDP Sciences; Astronomy and Astrophysics; 619; 11-2018; 61-68 | |
dc.identifier | 0004-6361 | |
dc.identifier | http://hdl.handle.net/11336/86353 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4395361 | |
dc.description.abstract | A sudden increase in the rate at which material reaches the most internal part of an accretion disk, i.e., the boundary layer, can change its structure dramatically. We have witnessed such a change for the first time in the symbiotic recurrent nova T CrB. Our analysis of XMM-Newton, Swift Burst Alert Telescope (BAT)/X-Ray Telescope (XRT)/UltraViolet Optical Telescope (UVOT), and the American Association of Variable Stars Observers (AAVSO) V- and B-band data indicates that during an optical brightening event that started in early 2014 (ΔV ≈ 1.5) the following occurred: (i) the hard X-ray emission as seen with BAT almost vanished; (ii) the XRT X-ray flux decreased significantly, while the optical flux remained high; (iii) the UV flux increased by at least a factor of 40 over the quiescent value; and (iv) the X-ray spectrum became much softer and a bright, new blackbody-like component appeared. We suggest that the optical brightening event, which could be a similar event to that observed about 8 years before the most recent thermonuclear outburst in 1946, is due to a disk instability. | |
dc.language | eng | |
dc.publisher | EDP Sciences | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/201833747 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1051/0004-6361/201833747 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.subject | ACCRETION, ACCRETION DISKS | |
dc.subject | BINARIES: SYMBIOTIC | |
dc.subject | X-RAYS: BINARIES | |
dc.title | Dramatic change in the boundary layer in the symbiotic recurrent nova T Coronae Borealis | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |