Radio and gamma-ray properties of extragalactic jets from the TANAMI sample
The TANAMI program has been observing parsec-scale radio jets of southern (declination south of − 30°) γ-ray bright AGN, simultaneously with Fermi/LAT monitoring of their γ-ray emission, via high-resolution radio imaging with Very Long Baseline Interferometry techniques. We present the radio and γ-r...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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EDP Sciences
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/12396 |
| _version_ | 1848748064785825792 |
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| author | Böck, M. Kadler, M. Müller, C. Tosti, G. Ojha, R. Wilms, J. Bastieri, D. Burnett, T. Carpenter, B. Cavazzuti, E. Dutka, M. Blanchard, J. Edwards, P. Hase, H. Horiuchi, S. Jauncey, D. Krauß, F. Lister, M. Lovell, J. Lott, B. Murphy, D. Phillips, C. Plötz, C. Pursimo, T. Quick, J. Ros, E. Taylor, G. Thompson, D. Tingay, Steven Tzioumis, A. Zensus, J. |
| author_facet | Böck, M. Kadler, M. Müller, C. Tosti, G. Ojha, R. Wilms, J. Bastieri, D. Burnett, T. Carpenter, B. Cavazzuti, E. Dutka, M. Blanchard, J. Edwards, P. Hase, H. Horiuchi, S. Jauncey, D. Krauß, F. Lister, M. Lovell, J. Lott, B. Murphy, D. Phillips, C. Plötz, C. Pursimo, T. Quick, J. Ros, E. Taylor, G. Thompson, D. Tingay, Steven Tzioumis, A. Zensus, J. |
| author_sort | Böck, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The TANAMI program has been observing parsec-scale radio jets of southern (declination south of − 30°) γ-ray bright AGN, simultaneously with Fermi/LAT monitoring of their γ-ray emission, via high-resolution radio imaging with Very Long Baseline Interferometry techniques. We present the radio and γ-rayproperties of the TANAMI sources based on one year of contemporaneous TANAMI and Fermi/LAT data. A large fraction (72%) of the TANAMI sample can be associated with bright γ-ray sources for this time range. Association rates differ for different optical classes with all BL Lacs, 76% of quasars, and just 17% of galaxies detected by the LAT. Upper limits were established on the γ-ray flux from TANAMI sources not detected by LAT. This analysis led to the identification of three new Fermi sources whose detection was later confirmed. The γ-ray and radio luminosities are related by Lγ ∝ Lr0.89±0.04. The brightness temperatures of the radio cores increase with the average γ-ray luminosity and the presence of brightness temperatures above the inverse Compton limit implies strong Doppler boosting in those sources. The undetected sources have lower γ/radio luminosity ratios and lower contemporaneous brightness temperatures. Unless the Fermi/LAT-undetected blazars are much γ-ray-fainter than the Fermi/LAT-detected sources, their γ-ray luminosity should not be significantly lower than the upper limits calculated here. |
| first_indexed | 2025-11-14T06:59:06Z |
| format | Journal Article |
| id | curtin-20.500.11937-12396 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:59:06Z |
| publishDate | 2016 |
| publisher | EDP Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-123962017-09-13T14:58:45Z Radio and gamma-ray properties of extragalactic jets from the TANAMI sample Böck, M. Kadler, M. Müller, C. Tosti, G. Ojha, R. Wilms, J. Bastieri, D. Burnett, T. Carpenter, B. Cavazzuti, E. Dutka, M. Blanchard, J. Edwards, P. Hase, H. Horiuchi, S. Jauncey, D. Krauß, F. Lister, M. Lovell, J. Lott, B. Murphy, D. Phillips, C. Plötz, C. Pursimo, T. Quick, J. Ros, E. Taylor, G. Thompson, D. Tingay, Steven Tzioumis, A. Zensus, J. The TANAMI program has been observing parsec-scale radio jets of southern (declination south of − 30°) γ-ray bright AGN, simultaneously with Fermi/LAT monitoring of their γ-ray emission, via high-resolution radio imaging with Very Long Baseline Interferometry techniques. We present the radio and γ-rayproperties of the TANAMI sources based on one year of contemporaneous TANAMI and Fermi/LAT data. A large fraction (72%) of the TANAMI sample can be associated with bright γ-ray sources for this time range. Association rates differ for different optical classes with all BL Lacs, 76% of quasars, and just 17% of galaxies detected by the LAT. Upper limits were established on the γ-ray flux from TANAMI sources not detected by LAT. This analysis led to the identification of three new Fermi sources whose detection was later confirmed. The γ-ray and radio luminosities are related by Lγ ∝ Lr0.89±0.04. The brightness temperatures of the radio cores increase with the average γ-ray luminosity and the presence of brightness temperatures above the inverse Compton limit implies strong Doppler boosting in those sources. The undetected sources have lower γ/radio luminosity ratios and lower contemporaneous brightness temperatures. Unless the Fermi/LAT-undetected blazars are much γ-ray-fainter than the Fermi/LAT-detected sources, their γ-ray luminosity should not be significantly lower than the upper limits calculated here. 2016 Journal Article http://hdl.handle.net/20.500.11937/12396 10.1051/0004-6361/201424773 EDP Sciences unknown |
| spellingShingle | Böck, M. Kadler, M. Müller, C. Tosti, G. Ojha, R. Wilms, J. Bastieri, D. Burnett, T. Carpenter, B. Cavazzuti, E. Dutka, M. Blanchard, J. Edwards, P. Hase, H. Horiuchi, S. Jauncey, D. Krauß, F. Lister, M. Lovell, J. Lott, B. Murphy, D. Phillips, C. Plötz, C. Pursimo, T. Quick, J. Ros, E. Taylor, G. Thompson, D. Tingay, Steven Tzioumis, A. Zensus, J. Radio and gamma-ray properties of extragalactic jets from the TANAMI sample |
| title | Radio and gamma-ray properties of extragalactic jets from the TANAMI sample |
| title_full | Radio and gamma-ray properties of extragalactic jets from the TANAMI sample |
| title_fullStr | Radio and gamma-ray properties of extragalactic jets from the TANAMI sample |
| title_full_unstemmed | Radio and gamma-ray properties of extragalactic jets from the TANAMI sample |
| title_short | Radio and gamma-ray properties of extragalactic jets from the TANAMI sample |
| title_sort | radio and gamma-ray properties of extragalactic jets from the tanami sample |
| url | http://hdl.handle.net/20.500.11937/12396 |