On the multiwavelength spectrum of the microquasar 1E 1740.7-2942
<b>Context.</b> The microquasar 1E 1740.7-2942 is a source located in the direction of the Galactic Center. It has been detected at X-rays, soft gamma-rays, and in the radio band, showing an extended radio component in the form of a double-sided jet. Although no optical counterpart has b...
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| Autores principales: | , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2006
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/83267 |
| Aporte de: |
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I19-R120-10915-83267 |
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dspace |
| institution |
Universidad Nacional de La Plata |
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I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas Gamma rays: observations Gamma rays: theory Stars: individual: 1E 1740.7-2942 Stars: winds, outflows X-rays: binaries |
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Ciencias Astronómicas Gamma rays: observations Gamma rays: theory Stars: individual: 1E 1740.7-2942 Stars: winds, outflows X-rays: binaries Bosch-Ramon, V. Romero, Gustavo Esteban Paredes, J. M. Bazzano, A. Del Santo, M. Bassani, L. On the multiwavelength spectrum of the microquasar 1E 1740.7-2942 |
| topic_facet |
Ciencias Astronómicas Gamma rays: observations Gamma rays: theory Stars: individual: 1E 1740.7-2942 Stars: winds, outflows X-rays: binaries |
| description |
<b>Context.</b> The microquasar 1E 1740.7-2942 is a source located in the direction of the Galactic Center. It has been detected at X-rays, soft gamma-rays, and in the radio band, showing an extended radio component in the form of a double-sided jet. Although no optical counterpart has been found so far for IE 1740.7-2942, its X-ray activity strongly points to a galactic nature.
<b>Aims.</b> We aim to improve our understanding of the hard X-ray and gamma-ray production in the system, exploring whether the jet can emit significantly at high energies under the light of the present knowledge.
<b>Methods.</b> We have modeled the source emission, from radio to gamma-rays, with a cold-matter dominated jet model. INTEGRAL data combined with radio and RXTE data, as well as EGRET and HESS upper-limits, are used to compare the computed and the observed spectra.
<b>Results.</b> From our modeling, we find out that jet emission cannot explain the high fluxes observed at hard X-rays without violating at the same time the constraints from the radio data, favoring the corona origin of the hard X-rays. Also, 1E 1740.7-2942 might be detected by GLAST or AGILE at GeV energies, and by HESS and HESS-II beyond 100 GeV, with the spectral shape likely affected by photon-photon absorption in the disk and corona photon fields. |
| format |
Articulo Articulo |
| author |
Bosch-Ramon, V. Romero, Gustavo Esteban Paredes, J. M. Bazzano, A. Del Santo, M. Bassani, L. |
| author_facet |
Bosch-Ramon, V. Romero, Gustavo Esteban Paredes, J. M. Bazzano, A. Del Santo, M. Bassani, L. |
| author_sort |
Bosch-Ramon, V. |
| title |
On the multiwavelength spectrum of the microquasar 1E 1740.7-2942 |
| title_short |
On the multiwavelength spectrum of the microquasar 1E 1740.7-2942 |
| title_full |
On the multiwavelength spectrum of the microquasar 1E 1740.7-2942 |
| title_fullStr |
On the multiwavelength spectrum of the microquasar 1E 1740.7-2942 |
| title_full_unstemmed |
On the multiwavelength spectrum of the microquasar 1E 1740.7-2942 |
| title_sort |
on the multiwavelength spectrum of the microquasar 1e 1740.7-2942 |
| publishDate |
2006 |
| url |
http://sedici.unlp.edu.ar/handle/10915/83267 |
| work_keys_str_mv |
AT boschramonv onthemultiwavelengthspectrumofthemicroquasar1e174072942 AT romerogustavoesteban onthemultiwavelengthspectrumofthemicroquasar1e174072942 AT paredesjm onthemultiwavelengthspectrumofthemicroquasar1e174072942 AT bazzanoa onthemultiwavelengthspectrumofthemicroquasar1e174072942 AT delsantom onthemultiwavelengthspectrumofthemicroquasar1e174072942 AT bassanil onthemultiwavelengthspectrumofthemicroquasar1e174072942 |
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Repositorios |
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1764820488446541826 |