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| Verfasst von: | Eppel, Florian [VerfasserIn]  |
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| | Kadler, Matthias [VerfasserIn] |
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| | Heßdörfer, J. [VerfasserIn] |
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| | Benke, P. [VerfasserIn] |
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| | Debbrecht, L. [VerfasserIn] |
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| | Eich, J. [VerfasserIn] |
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| | Gokus, Andrea Katharina [VerfasserIn] |
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| | Hämmerich, S. [VerfasserIn] |
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| | Kirchner, D. [VerfasserIn] |
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| | Paraschos, G. F. [VerfasserIn] |
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| | Rösch, F. [VerfasserIn] |
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| | Schulga, W. [VerfasserIn] |
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| | Sinapius, J. [VerfasserIn] |
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| | Weber, P. [VerfasserIn] |
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| | Bach, U. [VerfasserIn] |
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| | Dorner, D. [VerfasserIn] |
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| | Edwards, P. G. [VerfasserIn] |
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| | Giroletti, M. [VerfasserIn] |
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| | Kraus, A. [VerfasserIn] |
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| | Hervet, O. [VerfasserIn] |
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| | Koyama, S. [VerfasserIn] |
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| | Krichbaum, T. P. [VerfasserIn] |
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| | Mannheim, K. [VerfasserIn] |
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| | Ros, E. [VerfasserIn] |
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| | Zacharias, Michael [VerfasserIn] |
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| | Zensus, J. Anton [VerfasserIn] |
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| Titel: | TELAMON |
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| Titelzusatz: | Effelsberg monitoring of AGN jets with very-high-energy astroparticle emission - I. Program description and sample characterization |
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| Verf.angabe: | F. Eppel, M. Kadler, J. Heßdörfer, P. Benke, L. Debbrecht, J. Eich, A. Gokus, S. Hämmerich, D. Kirchner, G.F. Paraschos, F. Rösch, W. Schulga, J. Sinapius, P. Weber, U. Bach, D. Dorner, P.G. Edwards, M. Giroletti, A. Kraus, O. Hervet, S. Koyama, T.P. Krichbaum, K. Mannheim, E. Ros, M. Zacharias, and J.A. Zensus |
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| E-Jahr: | 2024 |
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| Jahr: | April 2024 |
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| Umfang: | 16 S. |
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| Illustrationen: | Diagramme |
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| Fussnoten: | Online veröffentlicht am 28. März 2024 ; Gesehen am 24.09.2024 |
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| Titel Quelle: | Enthalten in: Astronomy and astrophysics |
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| Ort Quelle: | Les Ulis : EDP Sciences, 1969 |
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| Jahr Quelle: | 2024 |
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| Band/Heft Quelle: | 684(2024), Artikel-ID A11, Seite 1-16 |
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| ISSN Quelle: | 1432-0746 |
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| Abstract: | We introduce the TELAMON program which is using the Effelsberg 100-m telescope to monitor the radio spectra of active galactic nuclei (AGN) under scrutiny in astroparticle physics, specifically TeV blazars and candidate neutrino-associated AGN. Here, we present and characterize our main sample of TeV-detected blazars.We analyzed the data sample from the first ∼2.5 yr of observations between August 2020 and February 2023 in the range from 14 GHz to 45 GHz. During this pilot phase, we observed all 59 TeV-detected blazars in the Northern Hemisphere (i.e., Dec > 0°) known at the time of observation. We discuss the basic data reduction and calibration procedures used for all TELAMON data and introduce a sub-band averaging method used to calculate average light curves for the sources in our sample.The TeV-selected sources in our sample exhibit a median flux density of 0.12 Jy at 20 mm, 0.20 Jy at 14 mm, and 0.60 Jy at 7 mm. The spectrum for most of the sources is consistent with a flat radio spectrum and we found a median spectral index (<i>S<i/>(<i>ν<i/>)∝<i>ν<i/><sup><i>α<i/><sup/>) of <i>α<i/> = −0.11. Our results on flux density and spectral index are consistent with previous studies of TeV-selected blazars. Compared to the GeV-selected F-GAMMA sample, TELAMON sources are significantly fainter in the radio band. This is consistent with the double-humped spectrum of blazars being shifted towards higher frequencies for TeV-emitters (in particular for high-synchrotron peaked BL Lac type objects), which results in a lower radio flux density. The spectral index distribution of our TeV-selected blazar sample is not significantly different from the GeV-selected F-GAMMA sample. Moreover, we present a strategy to track the light curve evolution of sources in our sample for future variability and correlation analysis. |
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| DOI: | doi:10.1051/0004-6361/202348262 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext: https://doi.org/10.1051/0004-6361/202348262 |
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| | kostenfrei: Volltext: https://www.aanda.org/articles/aa/abs/2024/04/aa48262-23/aa48262-23.html |
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| | DOI: https://doi.org/10.1051/0004-6361/202348262 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1903357411 |
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| Verknüpfungen: | → Zeitschrift |
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