Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3
Recent detection of suborbital gamma-ray variability of Flat Spectrum Radio Quasar (FSRQ) 3C 279 by Fermi Large Area Telescope (LAT) is in severe conflict with established models of blazar emission. This paper presents the results of suborbital analysis of the Fermi/LAT data for the brightest gamma-...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-12-01
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| Series: | Galaxies |
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| Online Access: | https://www.mdpi.com/2075-4434/5/4/100 |
| _version_ | 1819243349730656256 |
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| author | Krzysztof Nalewajko |
| author_facet | Krzysztof Nalewajko |
| author_sort | Krzysztof Nalewajko |
| collection | DOAJ |
| description | Recent detection of suborbital gamma-ray variability of Flat Spectrum Radio Quasar (FSRQ) 3C 279 by Fermi Large Area Telescope (LAT) is in severe conflict with established models of blazar emission. This paper presents the results of suborbital analysis of the Fermi/LAT data for the brightest gamma-ray flare of another FSRQ blazar 3C 454.3 in November 2010 (Modified Julian Date; MJD 55516-22). Gamma-ray light curves are calculated for characteristic time bin lengths as short as 3 min. The measured variations of the 0.1–10 GeV photon flux are tested against the hypothesis of steady intraorbit flux. In addition, the structure function is calculated for absolute photon flux differences and for their significances. Significant gamma-ray flux variations are measured only over time scales longer than ∼5 h, which is consistent with the standard blazar models. |
| first_indexed | 2024-12-23T14:54:17Z |
| format | Article |
| id | doaj.art-af01694ef09e4363bb7c907b4439d8eb |
| institution | Directory Open Access Journal |
| issn | 2075-4434 |
| language | English |
| last_indexed | 2024-12-23T14:54:17Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Galaxies |
| spelling | doaj.art-af01694ef09e4363bb7c907b4439d8eb2022-12-21T17:42:50ZengMDPI AGGalaxies2075-44342017-12-015410010.3390/galaxies5040100galaxies5040100Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3Krzysztof Nalewajko0Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Bartycka 18, 00-716 Warsaw, PolandRecent detection of suborbital gamma-ray variability of Flat Spectrum Radio Quasar (FSRQ) 3C 279 by Fermi Large Area Telescope (LAT) is in severe conflict with established models of blazar emission. This paper presents the results of suborbital analysis of the Fermi/LAT data for the brightest gamma-ray flare of another FSRQ blazar 3C 454.3 in November 2010 (Modified Julian Date; MJD 55516-22). Gamma-ray light curves are calculated for characteristic time bin lengths as short as 3 min. The measured variations of the 0.1–10 GeV photon flux are tested against the hypothesis of steady intraorbit flux. In addition, the structure function is calculated for absolute photon flux differences and for their significances. Significant gamma-ray flux variations are measured only over time scales longer than ∼5 h, which is consistent with the standard blazar models.https://www.mdpi.com/2075-4434/5/4/100blazarsvariabilitygamma-rays |
| spellingShingle | Krzysztof Nalewajko Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3 Galaxies blazars variability gamma-rays |
| title | Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3 |
| title_full | Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3 |
| title_fullStr | Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3 |
| title_full_unstemmed | Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3 |
| title_short | Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3 |
| title_sort | suborbital fermi lat analysis of the brightest gamma ray flare of blazar 3c 454 3 |
| topic | blazars variability gamma-rays |
| url | https://www.mdpi.com/2075-4434/5/4/100 |
| work_keys_str_mv | AT krzysztofnalewajko suborbitalfermilatanalysisofthebrightestgammarayflareofblazar3c4543 |