Matches in SemOpenAlex for { <https://semopenalex.org/work/W3197691073> ?p ?o ?g. }
- W3197691073 endingPage "4656" @default.
- W3197691073 startingPage "4645" @default.
- W3197691073 abstract "ABSTRACT We present the results of an extensive analysis of the optical, ultraviolet, X-ray, and γ-ray data collected from the observations of the BL Lac objects prototype BL Lacertae carried out over a period of nearly 13 yr, between 2008 August and 2021 March. The source is characterized by strongly variable emission at all frequencies, often accompanied by spectral changes. In the γ-ray band several prominent flares have been detected, the largest one reaching the flux of Fγ(> 196.7 MeV) = (4.39 ± 1.01) × 10−6 photon cm−2 s−1. The X-ray spectral variability of the source during the brightest flare on MJD 59128.18 (2020 October 6) was characterized by a softer-when-brighter trend due to a shift of the synchrotron peak to ∼1016 Hz, well into the HBL domain. The widely changing multiwavelength emission of BL Lacertae was systematically investigated by fitting leptonic models that include synchrotron self-Compton and external Compton components to 511 high-quality and quasi-simultaneous broad-band spectral energy distributions (SEDs). The majority of selected SEDs can be adequately fitted within a one-zone model with reasonable parameters. Only 46 SEDs with soft and bright X-ray spectra and when the source was observed in very high energy γ-ray bands can be explained in a two-zone leptonic scenario. The HBL behaviour observed during the brightest X-ray flare is interpreted as due to the emergence of synchrotron emission from freshly accelerated particles in a second emission zone located beyond the broad-line region." @default.
- W3197691073 created "2021-09-13" @default.
- W3197691073 creator A5039190362 @default.
- W3197691073 creator A5040747406 @default.
- W3197691073 date "2022-04-12" @default.
- W3197691073 modified "2023-10-10" @default.
- W3197691073 title "A 13-yr-long broad-band view of BL Lac" @default.
- W3197691073 cites W1562747727 @default.
- W3197691073 cites W1772436821 @default.
- W3197691073 cites W1890522558 @default.
- W3197691073 cites W1942990023 @default.
- W3197691073 cites W1951204806 @default.
- W3197691073 cites W1977864876 @default.
- W3197691073 cites W1979115990 @default.
- W3197691073 cites W1987319691 @default.
- W3197691073 cites W1988586290 @default.
- W3197691073 cites W2005769510 @default.
- W3197691073 cites W2013988414 @default.
- W3197691073 cites W2019850978 @default.
- W3197691073 cites W2025264648 @default.
- W3197691073 cites W2027714013 @default.
- W3197691073 cites W2036385708 @default.
- W3197691073 cites W2038367995 @default.
- W3197691073 cites W2042037254 @default.
- W3197691073 cites W2048364703 @default.
- W3197691073 cites W2056313509 @default.
- W3197691073 cites W2056529704 @default.
- W3197691073 cites W2056713841 @default.
- W3197691073 cites W2077077056 @default.
- W3197691073 cites W2084590626 @default.
- W3197691073 cites W2088868638 @default.
- W3197691073 cites W2098597426 @default.
- W3197691073 cites W2101010519 @default.
- W3197691073 cites W2107819646 @default.
- W3197691073 cites W2110164985 @default.
- W3197691073 cites W2119667992 @default.
- W3197691073 cites W2121976396 @default.
- W3197691073 cites W2135101687 @default.
- W3197691073 cites W2150529762 @default.
- W3197691073 cites W2150920983 @default.
- W3197691073 cites W2152242740 @default.
- W3197691073 cites W2153773343 @default.
- W3197691073 cites W2161408265 @default.
- W3197691073 cites W2164365962 @default.
- W3197691073 cites W2167277890 @default.
- W3197691073 cites W2194080530 @default.
- W3197691073 cites W2231971710 @default.
- W3197691073 cites W2341102512 @default.
- W3197691073 cites W2520562762 @default.
- W3197691073 cites W2594880096 @default.
- W3197691073 cites W2750046376 @default.
- W3197691073 cites W2755363156 @default.
- W3197691073 cites W2770838002 @default.
- W3197691073 cites W2811921651 @default.
- W3197691073 cites W2845057662 @default.
- W3197691073 cites W2848424442 @default.
- W3197691073 cites W2848722098 @default.
- W3197691073 cites W2849138630 @default.
- W3197691073 cites W2873976311 @default.
- W3197691073 cites W2907560034 @default.
- W3197691073 cites W2907915923 @default.
- W3197691073 cites W2929611936 @default.
- W3197691073 cites W2941538988 @default.
- W3197691073 cites W2949130100 @default.
- W3197691073 cites W2963433162 @default.
- W3197691073 cites W2963499347 @default.
- W3197691073 cites W2976528798 @default.
- W3197691073 cites W2990335615 @default.
- W3197691073 cites W3002825242 @default.
- W3197691073 cites W3039004235 @default.
- W3197691073 cites W3059683717 @default.
- W3197691073 cites W3085088179 @default.
- W3197691073 cites W3098395009 @default.
- W3197691073 cites W3098634206 @default.
- W3197691073 cites W3098839153 @default.
- W3197691073 cites W3099319445 @default.
- W3197691073 cites W3099716396 @default.
- W3197691073 cites W3099795827 @default.
- W3197691073 cites W3100256087 @default.
- W3197691073 cites W3100590544 @default.
- W3197691073 cites W3101575731 @default.
- W3197691073 cites W3102281125 @default.
- W3197691073 cites W3102563564 @default.
- W3197691073 cites W3102604907 @default.
- W3197691073 cites W3102680406 @default.
- W3197691073 cites W3103206338 @default.
- W3197691073 cites W3103881473 @default.
- W3197691073 cites W3104109302 @default.
- W3197691073 cites W3104647686 @default.
- W3197691073 cites W3105130796 @default.
- W3197691073 cites W3105187411 @default.
- W3197691073 cites W3105280224 @default.
- W3197691073 cites W3105535499 @default.
- W3197691073 cites W3105934001 @default.
- W3197691073 cites W3105945545 @default.
- W3197691073 cites W3105999314 @default.
- W3197691073 cites W3109941956 @default.
- W3197691073 cites W3122712798 @default.