Very long baseline interferometry search for the radio counterpart of HESS J1943+213
HESS J1943+213, a TeV point source close to the Galactic plane recently discovered by the H.E.S.S. Collaboration, was proposed to be an extreme BL Lacertae object, though a pulsar wind nebula (PWN) nature could not be completely discarded. To investigate its nature, we performed high-resolution radi...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0004637X_v762_n1_p_Gabanyi |
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todo:paper_0004637X_v762_n1_p_Gabanyi2023-10-03T14:02:31Z Very long baseline interferometry search for the radio counterpart of HESS J1943+213 Gabányi, K.É. Dubner, G. Giacani, E. Paragi, Z. Frey, S. Pidopryhora, Y. ISM: supernova remnants radio continuum: general radio lines: ISM techniques: interferometric HESS J1943+213, a TeV point source close to the Galactic plane recently discovered by the H.E.S.S. Collaboration, was proposed to be an extreme BL Lacertae object, though a pulsar wind nebula (PWN) nature could not be completely discarded. To investigate its nature, we performed high-resolution radio observations with the European Very Long Baseline Interferometry Network (EVN) and reanalyzed archival continuum and H I data. The EVN observations revealed a compact radio counterpart of the TeV source. The low brightness temperature and the resolved nature of the radio source are indications against the beamed BL Lacertae hypothesis. The radio/X-ray source appears immersed in a ∼1′ elliptical feature, suggesting a possible galactic origin (PWN nature) for the HESS source. We found that HESS J1943+213 is located in the interior of a ∼1° diameter H I feature and explored the possibility of them being physically related. © 2013. The American Astronomical Society. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004637X_v762_n1_p_Gabanyi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
ISM: supernova remnants radio continuum: general radio lines: ISM techniques: interferometric |
| spellingShingle |
ISM: supernova remnants radio continuum: general radio lines: ISM techniques: interferometric Gabányi, K.É. Dubner, G. Giacani, E. Paragi, Z. Frey, S. Pidopryhora, Y. Very long baseline interferometry search for the radio counterpart of HESS J1943+213 |
| topic_facet |
ISM: supernova remnants radio continuum: general radio lines: ISM techniques: interferometric |
| description |
HESS J1943+213, a TeV point source close to the Galactic plane recently discovered by the H.E.S.S. Collaboration, was proposed to be an extreme BL Lacertae object, though a pulsar wind nebula (PWN) nature could not be completely discarded. To investigate its nature, we performed high-resolution radio observations with the European Very Long Baseline Interferometry Network (EVN) and reanalyzed archival continuum and H I data. The EVN observations revealed a compact radio counterpart of the TeV source. The low brightness temperature and the resolved nature of the radio source are indications against the beamed BL Lacertae hypothesis. The radio/X-ray source appears immersed in a ∼1′ elliptical feature, suggesting a possible galactic origin (PWN nature) for the HESS source. We found that HESS J1943+213 is located in the interior of a ∼1° diameter H I feature and explored the possibility of them being physically related. © 2013. The American Astronomical Society. All rights reserved. |
| format |
JOUR |
| author |
Gabányi, K.É. Dubner, G. Giacani, E. Paragi, Z. Frey, S. Pidopryhora, Y. |
| author_facet |
Gabányi, K.É. Dubner, G. Giacani, E. Paragi, Z. Frey, S. Pidopryhora, Y. |
| author_sort |
Gabányi, K.É. |
| title |
Very long baseline interferometry search for the radio counterpart of HESS J1943+213 |
| title_short |
Very long baseline interferometry search for the radio counterpart of HESS J1943+213 |
| title_full |
Very long baseline interferometry search for the radio counterpart of HESS J1943+213 |
| title_fullStr |
Very long baseline interferometry search for the radio counterpart of HESS J1943+213 |
| title_full_unstemmed |
Very long baseline interferometry search for the radio counterpart of HESS J1943+213 |
| title_sort |
very long baseline interferometry search for the radio counterpart of hess j1943+213 |
| url |
http://hdl.handle.net/20.500.12110/paper_0004637X_v762_n1_p_Gabanyi |
| work_keys_str_mv |
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