On the distribution of fluxes of gamma-ray blazars: hints for a stochastic process? - INSPIRE

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On the distribution of fluxes of gamma-ray blazars: hints for a stochastic process?

Apr 20, 2020

7 pages

Published in:

Mon.Not.Roy.Astron.Soc. 497 (2020) 1, 1294-1300

Published: Sep 1, 2020

e-Print:

2004.09149 [astro-ph.HE]

DOI:

10.1093/mnras/staa2055 (publication)

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Abstract: (Oxford University Press)

We examine a model for the observed temporal variability of powerful blazars in the γ-ray band in which the dynamics is described in terms of a stochastic differential equation, including the contribution of a deterministic drift and a stochastic term. The form of the equation is motivated by the current astrophysical framework, accepting that jets are powered through the extraction of the rotational energy of the central supermassive black hole mediated by magnetic fields supported by a so-called magnetically arrested accretion disc. We apply the model to the γ-ray light curves of several bright blazars and we infer the parameters suitable to describe them. In particular, we examine the differential distribution of fluxes (dN/dF_γ) and we show that the predicted probability density function for the assumed stochastic equation naturally reproduces the observed power-law shape at large fluxes |

\mathrm{ d}N/\mathrm{ d}F_{\gamma } \propto F_{\gamma }^{-\alpha }

| with α > 2.

Note:

7 pages, 4 figures, accepted for publication in MNRAS

radiation mechanisms: non-thermal
galaxies: jets
gamma-rays: galaxies

References(50)

Figures(4)

Gamma-ray Light Curves and Variability of Bright Fermi-Detected Blazars

A.A. Abdo

- Astrophys.J. 722 (2010) 520-542
•
e-Print:
- 1004.0348
•
DOI:
- 10.1088/0004-637X/722/1/520

An Exceptional Very High Energy Gamma-Ray Flare of PKS 2155-304

F. Aharonian
(
- Heidelberg, Max Planck Inst. and
- Dublin Inst.
)
,
A.G. Akhperjanian
(
- Yerevan Phys. Inst.
)
,
A.R. Bazer-Bachi
(
- Toulouse, CESR
)
,
B. Behera
(
- Heidelberg Observ.
)
,
M. Beilicke
(
- Hamburg U.
)

et al.

- Astrophys.J.Lett. 664 (2007) L71-L78
•
e-Print:
- 0706.0797
•
DOI:
- 10.1086/520635

MAGIC discovery of VHE Emission from the FSRQ PKS 1222+21

MAGIC

Collaboration

•

J. Aleksic
(
- Barcelona, IFAE
)

et al.

- Astrophys.J.Lett. 730 (2011) L8
•
e-Print:
- 1101.4645
•
DOI:
- 10.1088/2041-8205/730/1/L8

Black hole lightning due to particle acceleration at subhorizon scales

J. Aleksic
(
- Barcelona, IFAE
)
,
S. Ansoldi
(
- Udine U. and
- INFN, Udine
)
,
L.A. Antonelli
(
- INFN, Rome
)
,
P. Antoranz
(
- Siena U. and
- INFN, Pisa
)
,
A. Babic
(
- Boskovic Inst., Zagreb and
- Split U.
)

et al.

- Science 346 (2014) 1080-1084
•
e-Print:
- 1412.4936
•
DOI:
- 10.1126/science.1256183

Modeling with Ito Stochastic Differential Equations

Allen E.

Arlt R.
,
Rüdiger G.

- Astron.Astrophys. 349 (1999) 334

25 Years of Self-Organized Criticality: Solar and Astrophysics

et al.

- Space Sci.Rev. 198 (2016) 1-4, 47-166
•
e-Print:
- 1403.6528
•
DOI:
- 10.1007/s11214-014-0054-6

The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission

Fermi-LAT

Collaboration

•

W.B. Atwood
(
- UC, Santa Cruz
)

et al.

- Astrophys.J. 697 (2009) 1071-1102
•
e-Print:
- 0902.1089
•
DOI:
- 10.1088/0004-637X/697/2/1071

Pittsburgh Conference on BL Lac Objects, University of Pittsburgh, Pittsburgh, 328

Blandford R. D.
,
Rees M. J.

Electromagnetic extractions of energy from Kerr black holes

- Mon.Not.Roy.Astron.Soc. 179 (1977) 433-456
•
DOI:
- 10.1093/mnras/179.3.433

Relativistic Jets from Active Galactic Nuclei

Roger Blandford
(
- KIPAC, Menlo Park
)
,
David Meier
(
- Caltech, JPL
)
,
Anthony Readhead
(
- Owens Valley Radio Observ.
)

- Ann.Rev.Astron.Astrophys. 57 (2019) 467-509
•
e-Print:
- 1812.06025
•
DOI:
- 10.1146/annurev-astro-081817-051948

The gamma-ray brightest days of the blazar 3C 454.3

- Mon.Not.Roy.Astron.Soc. 410 (2011) 368
•
e-Print:
- 1003.3476
•
DOI:
- 10.1111/j.1365-2966.2010.17450.x

DOI:
- 10.1111/mnr.2010.410.issue-1

The gamma-ray brightest days of the blazar 3C 454.3

- Mon.Not.Roy.Astron.Soc. 410 (2011) 368
•
e-Print:
- 1003.3476
•
DOI:
- 10.1111/j.1365-2966.2010.17450.x

Leptonic and Hadronic Modeling of Fermi-Detected Blazars

- Astrophys.J. 768 (2013) 54
•
e-Print:
- 1304.0605
•
DOI:
- 10.1088/0004-637X/768/1/54

A hadronic origin for ultra-high-frequency-peaked BL Lac objects

M. Cerruti
(
- Harvard-Smithsonian Ctr. Astrophys.
)
,
A. Zech
(
- LUTH, Meudon
)
,
C. Boisson
(
- LUTH, Meudon
)
,
S. Inoue
(
- Tokyo U., ICRR and
- Munich, Max Planck Inst.
)

- Mon.Not.Roy.Astron.Soc. 448 (2015) 1, 910-927
•
e-Print:
- 1411.5968
•
DOI:
- 10.1093/mnras/stu2691

The radio/gamma-ray connection in Fermi-blazars

- Mon.Not.Roy.Astron.Soc. 413 (2011) 852
•
e-Print:
- 1007.2751
•
DOI:
- 10.1111/j.1365-2966.2010.18173.x

DOI:
- 10.1111/mnr.2011.413.issue-2

The radio/gamma-ray connection in Fermi-blazars

- Mon.Not.Roy.Astron.Soc. 413 (2011) 852
•
e-Print:
- 1007.2751
•
DOI:
- 10.1111/j.1365-2966.2010.18173.x

Fermi/LAT broad emission line blazars

- Mon.Not.Roy.Astron.Soc. 448 (2015) 2, 1060-1077
•
e-Print:
- 1501.03504
•
DOI:
- 10.1093/mnras/stv055

General physical properties of bright Fermi blazars

et al.

- Mon.Not.Roy.Astron.Soc. 402 (2010) 497
•
e-Print:
- 0909.0932
•
DOI:
- 10.1111/j.1365-2966.2009.15898.x

The Fermi blazar sequence

- Mon.Not.Roy.Astron.Soc. 469 (2017) 1, 255-266
•
e-Print:
- 1702.02571
•
DOI:
- 10.1093/mnras/stx806

Lognormal variability in BL Lacertae

- Astron.Astrophys. 503 (2009) 797
•
e-Print:
- 0907.2425
•
DOI:
- 10.1051/0004-6361/200912303

Simulation and Inference for Stochastic Differential Equations

Iacus S. M.

•
DOI:
- 10.1007/978-0-387-75839-8

Swift Observations of Mrk 421 in Selected Epochs. III. Extreme X-Ray Timing/Spectral Properties and Multiwavelength Lognormality during 2015 December–2018 April

et al.

- Astrophys.J.Suppl. 247 (2020) 1, 27,
- The Astrophysical Journal, 2020
•
e-Print:
- 2004.00676
•
DOI:
- 10.3847/1538-4365/ab6322

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