The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017
We present radio results fromshort e-EVN (EuropeanVLBI network) observations of the counterpart to IGR J20187+4041, a hard X-ray source projected against the γ Cygni supernova remnant (SNR). The brightest unidentified EGRET source 3EG J2020+4017 is also located in the γ Cygni region, though its rela...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_13138502_v_n_p_Paragi |
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todo:paper_13138502_v_n_p_Paragi2023-10-03T16:09:21Z The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017 Paragi, Z. Cruz, A.T. Giacani, E. Dubner, G. Bykov, A.M. Van Langevelde, H.J. Angular resolution Compact objects Compact structures Flaring activity Hard X-ray sources Radio sources Supernova remnants Time-scales Gamma rays Radio astronomy We present radio results fromshort e-EVN (EuropeanVLBI network) observations of the counterpart to IGR J20187+4041, a hard X-ray source projected against the γ Cygni supernova remnant (SNR). The brightest unidentified EGRET source 3EG J2020+4017 is also located in the γ Cygni region, though its relation to IGR J20187+4041 has not been well established yet. The e-EVN observations were carried out following the AGILE detection of gamma-ray flaring activity in the region. Our observations show that the radio counterpart to the IGR source has a compact structure on the ∼ 10 mas scales that could be related to a compact object, but no radio flaring activity has been observed. e-VLBI*is a technique which makes it possible to image the structure of radio sources at the highest angular resolution on a very short timescale. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. CONF info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_13138502_v_n_p_Paragi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Angular resolution Compact objects Compact structures Flaring activity Hard X-ray sources Radio sources Supernova remnants Time-scales Gamma rays Radio astronomy |
| spellingShingle |
Angular resolution Compact objects Compact structures Flaring activity Hard X-ray sources Radio sources Supernova remnants Time-scales Gamma rays Radio astronomy Paragi, Z. Cruz, A.T. Giacani, E. Dubner, G. Bykov, A.M. Van Langevelde, H.J. The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017 |
| topic_facet |
Angular resolution Compact objects Compact structures Flaring activity Hard X-ray sources Radio sources Supernova remnants Time-scales Gamma rays Radio astronomy |
| description |
We present radio results fromshort e-EVN (EuropeanVLBI network) observations of the counterpart to IGR J20187+4041, a hard X-ray source projected against the γ Cygni supernova remnant (SNR). The brightest unidentified EGRET source 3EG J2020+4017 is also located in the γ Cygni region, though its relation to IGR J20187+4041 has not been well established yet. The e-EVN observations were carried out following the AGILE detection of gamma-ray flaring activity in the region. Our observations show that the radio counterpart to the IGR source has a compact structure on the ∼ 10 mas scales that could be related to a compact object, but no radio flaring activity has been observed. e-VLBI*is a technique which makes it possible to image the structure of radio sources at the highest angular resolution on a very short timescale. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. |
| format |
CONF |
| author |
Paragi, Z. Cruz, A.T. Giacani, E. Dubner, G. Bykov, A.M. Van Langevelde, H.J. |
| author_facet |
Paragi, Z. Cruz, A.T. Giacani, E. Dubner, G. Bykov, A.M. Van Langevelde, H.J. |
| author_sort |
Paragi, Z. |
| title |
The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017 |
| title_short |
The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017 |
| title_full |
The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017 |
| title_fullStr |
The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017 |
| title_full_unstemmed |
The compact radio counterpart of IGR J20187+4041 near the flaring source AGL 2021+4029 and 3EG J2020+4017 |
| title_sort |
compact radio counterpart of igr j20187+4041 near the flaring source agl 2021+4029 and 3eg j2020+4017 |
| url |
http://hdl.handle.net/20.500.12110/paper_13138502_v_n_p_Paragi |
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