تقرير
A model-driven search for extreme BL Lacs among LAT BCU
| العنوان: | A model-driven search for extreme BL Lacs among LAT BCU |
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| المؤلفون: | Rosillo, M. Nievas, Chiaro, G., Dominguez, A., La Mura, G. |
| المصدر: | PoS(ICRC2021)395 |
| سنة النشر: | 2021 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Astrophysics of Galaxies |
| الوصف: | The emission of very-high-energy photons (VHE, E$>$100 GeV) in active galactic nuclei (AGN) is closely connected with the production of ultra-relativistic particles. Among AGN, the subclass of extreme BL Lacertae are of particular interest because they challenge state-of-art models on how these cosmic particle accelerators operate. By cross-matching two gamma-ray catalogs (this is, 4FGL-DR2 and 2BIGB), we identified 23 high-synchrotron-peaked (HSP) blazar candidates with photometric or spectroscopic redshifts, good multi-wavelength coverage, that are possibly detectable by VHE instruments. We performed a new analysis of Fermi Large Area Telescope data including the effects of attenuation from the extragalactic background light and complemented these results by collecting multiwavelength data from optical, radio and X-ray archival observations. Their broadband spectral energy distributions were interpreted in terms of synchrotron-self-Compton models with external-Compton components and compared with the properties of prototypical extreme HSP blazars. Finally, we test their detectability with imaging atmospheric Cherenkov telescopes (IACTs) and propose a new method for selecting these extreme targets for these ground-based telescopes. Comment: 8 pages, 3 figures, ICRC2021 Conference (Berlin, online) |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.22323/1.395.0620 |
| الوصول الحر: | http://arxiv.org/abs/2109.13568Test |
| رقم الانضمام: | edsarx.2109.13568 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.22323/1.395.0620 |
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