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Abstract:

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.

Registro:

Documento: Artículo
Título:Very long baseline interferometry search for the radio counterpart of HESS J1943+213
Autor:Gabányi, K.É.; Dubner, G.; Giacani, E.; Paragi, Z.; Frey, S.; Pidopryhora, Y.
Filiación:Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, P.O. Box 67, Budapest H-1525, Hungary
Instituto de Astronomía y Física Del Espacio (CONICET-UBA), CC 67, Suc. 28, 1428 Buenos Aires, Argentina
Joint Institute for VLBI in Europe, Postbus 2, 7990 AA Dwingeloo, Netherlands
FÖMI Satellite Geodetic Observatory, P.O. Box 585, H-1592 Budapest, Hungary
FADU, Universidad de Buenos Aires, Argentina
Palabras clave:ISM: supernova remnants; radio continuum: general; radio lines: ISM; techniques: interferometric
Año:2013
Volumen:762
Número:1
DOI: http://dx.doi.org/10.1088/0004-637X/762/1/63
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v762_n1_p_Gabanyi

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Citas:

---------- APA ----------
Gabányi, K.É., Dubner, G., Giacani, E., Paragi, Z., Frey, S. & Pidopryhora, Y. (2013) . Very long baseline interferometry search for the radio counterpart of HESS J1943+213. Astrophysical Journal, 762(1).
http://dx.doi.org/10.1088/0004-637X/762/1/63
---------- CHICAGO ----------
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" . Astrophysical Journal 762, no. 1 (2013).
http://dx.doi.org/10.1088/0004-637X/762/1/63
---------- MLA ----------
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" . Astrophysical Journal, vol. 762, no. 1, 2013.
http://dx.doi.org/10.1088/0004-637X/762/1/63
---------- VANCOUVER ----------
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. Astrophys. J. 2013;762(1).
http://dx.doi.org/10.1088/0004-637X/762/1/63