Dissecting the region of 3EG J1837-0423 and hess J1841-055 with integral
3EG J1837-0423 and HESS J1841-055 are two unidentified and peculiar high-energy sources located in the same region of the sky, separated by 1.4°. Specifically, 3EG J1837-0423 is a transient MeV object detected by EGRET only once during flaring activity that lasted a few days while HESS J1841-055 is...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2009
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/82796 |
| Aporte de: |
| id |
I19-R120-10915-82796 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas Gamma rays: observations Gamma rays: theory X-rays: binaries |
| spellingShingle |
Ciencias Astronómicas Gamma rays: observations Gamma rays: theory X-rays: binaries Sguera, V. Romero, Gustavo Esteban Bazzano, A. Masetti, N. Bird, A. J. Bassani, L. Dissecting the region of 3EG J1837-0423 and hess J1841-055 with integral |
| topic_facet |
Ciencias Astronómicas Gamma rays: observations Gamma rays: theory X-rays: binaries |
| description |
3EG J1837-0423 and HESS J1841-055 are two unidentified and peculiar high-energy sources located in the same region of the sky, separated by 1.4°. Specifically, 3EG J1837-0423 is a transient MeV object detected by EGRET only once during flaring activity that lasted a few days while HESS J1841-055 is a highly extended TeV source. We attempted to match the high-energy emission from the unidentified sources 3EG J1837-0423 and HESS J1841-055 with X-rays (4-20 keV) and soft γ-rays (20-100 keV) candidate counterparts detected through deep <i>International Gamma-Ray Astrophysics Laboratory</i> observations of the sky region. As a result we propose the Supergiant Fast X-ray Transient (SFXT) AX J1841.0-0536 as a possible candidate counterpart of 3EG J1837-0423, based on spatial proximity and transient behavior. Alternatively, AX J1841.0-0536 could be responsible for at least a fraction of the entire TeV emission from the extended source HESS J1841-055, based on a striking spatial correlation. In either case, the proposed association is also supported from an energetic standpoint by a theoretical scenario where AX J1841.0-0536 is a low magnetized pulsar which, due to accretion of massive clumps from the supergiant companion donor star, undergoes sporadic changes to transient Atoll-states where a magnetic tower can produce transient jets and as a consequence high-energy emission. In either case (by association with 3EG J1837-0423 or alternatively with HESS J1841-055), AX J1841.0-0536 might be the prototype of a new class of Galactic transient MeV/TeV emitters. |
| format |
Articulo Articulo |
| author |
Sguera, V. Romero, Gustavo Esteban Bazzano, A. Masetti, N. Bird, A. J. Bassani, L. |
| author_facet |
Sguera, V. Romero, Gustavo Esteban Bazzano, A. Masetti, N. Bird, A. J. Bassani, L. |
| author_sort |
Sguera, V. |
| title |
Dissecting the region of 3EG J1837-0423 and hess J1841-055 with integral |
| title_short |
Dissecting the region of 3EG J1837-0423 and hess J1841-055 with integral |
| title_full |
Dissecting the region of 3EG J1837-0423 and hess J1841-055 with integral |
| title_fullStr |
Dissecting the region of 3EG J1837-0423 and hess J1841-055 with integral |
| title_full_unstemmed |
Dissecting the region of 3EG J1837-0423 and hess J1841-055 with integral |
| title_sort |
dissecting the region of 3eg j1837-0423 and hess j1841-055 with integral |
| publishDate |
2009 |
| url |
http://sedici.unlp.edu.ar/handle/10915/82796 |
| work_keys_str_mv |
AT sguerav dissectingtheregionof3egj18370423andhessj1841055withintegral AT romerogustavoesteban dissectingtheregionof3egj18370423andhessj1841055withintegral AT bazzanoa dissectingtheregionof3egj18370423andhessj1841055withintegral AT masettin dissectingtheregionof3egj18370423andhessj1841055withintegral AT birdaj dissectingtheregionof3egj18370423andhessj1841055withintegral AT bassanil dissectingtheregionof3egj18370423andhessj1841055withintegral |
| bdutipo_str |
Repositorios |
| _version_ |
1764820488636334084 |