Estudio óptico de LMXBS con alta resolución temporal evidencia de flares no térmicos en MXB 1735-44
We present a search for ultrafast optical variability among some low-mass X-ray binaries (LMXBS) using MANIA complex (Multichannel Analisys of Nanosecond Intensity Alterations) attached to the 2.15 m telescope of CASLEO. Two flares of ∼ 0.25 sec in duration were recorded from the MXB 1735-44 X-ray b...
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| Autores principales: | , , , , , |
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| Formato: | Articulo Comunicacion |
| Lenguaje: | Español |
| Publicado: |
1992
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/143883 |
| Aporte de: |
| id |
I19-R120-10915-143883 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Español |
| topic |
Astronomía Galaxia |
| spellingShingle |
Astronomía Galaxia Beskin, G. Neizvestny, S. Plokhotnichenko, V. Benvenuto, Omar Gustavo Feinstein Baigorri, Carlos Méndez, Mariano R. Estudio óptico de LMXBS con alta resolución temporal evidencia de flares no térmicos en MXB 1735-44 |
| topic_facet |
Astronomía Galaxia |
| description |
We present a search for ultrafast optical variability among some low-mass X-ray binaries (LMXBS) using MANIA complex (Multichannel Analisys of Nanosecond Intensity Alterations) attached to the 2.15 m telescope of CASLEO. Two flares of ∼ 0.25 sec in duration were recorded from the MXB 1735-44 X-ray burster. Brightness of the object increased 15-30 times during these flares, with very steep forward fronts (characteristic rising time being ∼ 0.05-0.06 sec), and displaying a fine structure in time-scale of 0.005-0.006 sec (confidence level > 95%). Brightness temperatures of these phases within the flares were more than 5x10⁷,10⁸ K, respectively, which can only be explained by non-thermal processes. These results are an evidence that in MXB 1735-44 there exist some departures from standard model of accretion onto compact objects. |
| format |
Articulo Comunicacion |
| author |
Beskin, G. Neizvestny, S. Plokhotnichenko, V. Benvenuto, Omar Gustavo Feinstein Baigorri, Carlos Méndez, Mariano R. |
| author_facet |
Beskin, G. Neizvestny, S. Plokhotnichenko, V. Benvenuto, Omar Gustavo Feinstein Baigorri, Carlos Méndez, Mariano R. |
| author_sort |
Beskin, G. |
| title |
Estudio óptico de LMXBS con alta resolución temporal evidencia de flares no térmicos en MXB 1735-44 |
| title_short |
Estudio óptico de LMXBS con alta resolución temporal evidencia de flares no térmicos en MXB 1735-44 |
| title_full |
Estudio óptico de LMXBS con alta resolución temporal evidencia de flares no térmicos en MXB 1735-44 |
| title_fullStr |
Estudio óptico de LMXBS con alta resolución temporal evidencia de flares no térmicos en MXB 1735-44 |
| title_full_unstemmed |
Estudio óptico de LMXBS con alta resolución temporal evidencia de flares no térmicos en MXB 1735-44 |
| title_sort |
estudio óptico de lmxbs con alta resolución temporal evidencia de flares no térmicos en mxb 1735-44 |
| publishDate |
1992 |
| url |
http://sedici.unlp.edu.ar/handle/10915/143883 |
| work_keys_str_mv |
AT besking estudioopticodelmxbsconaltaresoluciontemporalevidenciadeflaresnotermicosenmxb173544 AT neizvestnys estudioopticodelmxbsconaltaresoluciontemporalevidenciadeflaresnotermicosenmxb173544 AT plokhotnichenkov estudioopticodelmxbsconaltaresoluciontemporalevidenciadeflaresnotermicosenmxb173544 AT benvenutoomargustavo estudioopticodelmxbsconaltaresoluciontemporalevidenciadeflaresnotermicosenmxb173544 AT feinsteinbaigorricarlos estudioopticodelmxbsconaltaresoluciontemporalevidenciadeflaresnotermicosenmxb173544 AT mendezmarianor estudioopticodelmxbsconaltaresoluciontemporalevidenciadeflaresnotermicosenmxb173544 |
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Repositorios |
| _version_ |
1764820459753308163 |