Relevant bibliographies by topics / Synchrotron Self Compton (SSC)

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Academic literature on the topic 'Synchrotron Self Compton (SSC)'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "Synchrotron Self Compton (SSC)"

1

BÖTTCHER, MARKUS. "MODELING INTERMEDIATE BL LAC OBJECTS DETECTED BY VERITAS." International Journal of Modern Physics D 19, no. 06 (2010): 873–78. http://dx.doi.org/10.1142/s0218271810017135.

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Modeling implications of recent VERITAS discoveries of Intermediate BL Lac Objects (IBLs) are presented. Leptonic jet models for the IBLs W Comae (z = 0.102) and 3C 66A (z = 0.444) are, in principle, viable with only synchrotron and synchrotron self-Compton (SSC) components, but more plausible parameters can be achieved including an external infrared radiation field as source for Compton upscattering to produce the observed VHE gamma-ray emission. The unknown redshift of PKS 1424+240 makes a theoretical interpretation difficult. A pure SSC model seems to be sufficient to represent its SED, and
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2

Jacovich, Taylor E., Paz Beniamini, and Alexander J. van der Horst. "Modelling synchrotron self-Compton and Klein–Nishina effects in gamma-ray burst afterglows." Monthly Notices of the Royal Astronomical Society 504, no. 1 (2021): 528–42. http://dx.doi.org/10.1093/mnras/stab911.

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ABSTRACT We present an implementation of a self-consistent way of modelling synchrotron self-Compton (SSC) effects in gamma-ray burst afterglows, with and without approximated Klein–Nishina suppressed scattering for the afterglow modelling code boxfit, which is currently based on pure synchrotron emission. We discuss the changes in spectral shape and evolution due to SSC effects, and comment on how these changes affect physical parameters derived from broad-band modelling. We show that SSC effects can have a profound impact on the shape of the X-ray light curve using simulations including thes
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3

Banasinski, Piotr, та Wlodek Bednarek. "Inhomogeneous SSC model for the γ-ray production in jets of microquasars". Proceedings of the International Astronomical Union 10, S313 (2014): 382–83. http://dx.doi.org/10.1017/s1743921315002537.

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AbstractWe present an inhomogeneous synchrotron self-Compton (SSC) model for active parts of jets in low mass microquasars. We compare results of our model computed, for typical parameters of microquasars, with the sensitivity of Fermi-LAT.
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4

Yamasaki, Shotaro, and Tsvi Piran. "Analytic modelling of synchrotron self-Compton spectra: Application to GRB 190114C." Monthly Notices of the Royal Astronomical Society 512, no. 2 (2022): 2142–53. http://dx.doi.org/10.1093/mnras/stac483.

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ABSTRACT Observations of TeV emission from early gamma-ray burst (GRB) afterglows revealed the long sought for inverse Compton (IC) upscattering of the lower energy synchrotron. However, it turned out that the long hoped for ability to easily interpret the synchrotron self-Compton (SSC) spectra didn’t materialize. The TeV emission is in the Klein–Nishina (KN) regime and the simple Thomson regime SSC spectrum is modified, complicating the scene. We describe here a methodology to obtain an analytic approximation to an observed spectrum and infer the conditions at the emitting region. The methodo
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5

BANASIŃSKI, PIOTR, and WLODEK BEDNAREK. "THE OPTICALLY THICK HOMOGENEOUS SSC MODEL: APPLICATION TO RADIO GALAXY NGC 1275." International Journal of Modern Physics: Conference Series 28 (January 2014): 1460205. http://dx.doi.org/10.1142/s2010194514602051.

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We consider the Synchrotron Self-Compton (SSC) model for jets in active galaxies in which produced γ-ray photons can be absorbed in collisions with the synchrotron radiation already at the emission region. In terms of such modified SSC model, we argue that the higher emission stages should be characterised by γ-ray spectra extending to lower energies due to the efficient absorption of the highest energy γ-rays. As an example, we show that different emission stages of the nearby radio galaxy NGC 1275 could be explained by such scenario.
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6

Fedorova, Elena, Bohdan Hnatyk, Antonino Del Popolo, Anatoliy Vasylenko, and Vadym Voitsekhovskyi. "Non-Thermal Emission from Radio-Loud AGN Jets: Radio vs. X-rays." Galaxies 10, no. 1 (2022): 6. http://dx.doi.org/10.3390/galaxies10010006.

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We consider the sample of 55 blazars and Seyferts cross-correlated from the Planck all-sky survey based on the Early Release Compact Source Catalog (ERCSC) and Swift BAT 105-Month Hard X-ray Survey. The radio Planck spectra vs. X-ray Swift/XRT+BAT spectra of the active galactic nuclei (AGN) sample were fitted with the simple and broken power law (for the X-ray spectra taking into account also the Galactic neutral absorption) to test the dependencies between the photon indices of synchrotron emission (in radio range) and synchrotron self-Compton (SSC) or inverse-Compton emission (in X-rays). We
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7

ZACHARIAS, MICHAEL, and REINHARD SCHLICKEISER. "TIME-DEPENDENT SSC COOLING EFFECTS ON BLAZAR EMISSION." International Journal of Modern Physics: Conference Series 28 (January 2014): 1460181. http://dx.doi.org/10.1142/s2010194514601811.

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Blazars are among the most violent sources in the cosmos exhibiting flaring states with remarkably different variability time scales. Especially rapid flares with flux doubling time scales of the order of minutes have been puzzling for quite some time. Many modeling attempts use the well known linear and steady-state scenario for the cooling and emission processes in the jet, albeit the obvious strongly time-dependent nature of flares. Due to the feedback of the self-produced synchrotron radiation with additional scattering by the relativistic electrons, the synchrotron-self Compton (SSC) effe
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8

Feng, Yaru, Shaoming Hu, Ruixin Zhou та Songbo Gao. "Explaining the Multiwavelength Emission of γ-ray Bright Flat-Spectrum Radio Quasar 3C 454.3 in Different Activity States". Universe 8, № 11 (2022): 585. http://dx.doi.org/10.3390/universe8110585.

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The origin of gamma-ray flares of blazars is still an open issue in jet physics. In this work, we reproduce the multiwavelength spectral energy distribution (SED) of flat-spectrum radio quasars 3C 454.3 under a one-zone leptonic scenario, investigate the variation of the physical parameters in different activity states, and analyze the possible origin of its γ-ray outburst. Based on the analysis of multiwavelength quasi-simultaneous observations of 3C 454.3 during MJD 55,400–56,000, we consider that the radiation includes synchrotron (Syn), synchrotron self-Compton (SSC), and external Compton
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9

Fraija, N., M. G. Dainotti, Sahil Ugale, Debarpita Jyoti, and Donald C. Warren. "Synchrotron Self-Compton Afterglow Closure Relations and Fermi-LAT-detected Gamma-Ray Bursts." Astrophysical Journal 934, no. 2 (2022): 188. http://dx.doi.org/10.3847/1538-4357/ac7a9c.

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Abstract The Fermi Large Area Telescope (Fermi-LAT) Collaboration reported the Second Gamma-ray Burst Catalog (2FLGC), which comprises a subset of 29 bursts with photon energies above 10 GeV. Although the standard synchrotron forward-shock model has successfully explained the gamma-ray burst (GRB) afterglow observations, energetic photons higher than 10 GeV from these transient events can hardly be described in this scenario. We present the closure relations (CRs) of the synchrotron self-Compton (SSC) afterglow model in the adiabatic and radiative scenario, and when the central engine injects
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10

Joshi, Jagdish C., and Soebur Razzaque. "Modelling synchrotron and synchrotron self-Compton emission of gamma-ray burst afterglows from radio to very-high energies." Monthly Notices of the Royal Astronomical Society 505, no. 2 (2021): 1718–29. http://dx.doi.org/10.1093/mnras/stab1329.

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ABSTRACT Synchrotron radiation from a decelerating blastwave is a widely accepted model of radio to X-ray afterglow emission from gamma-ray bursts (GRBs). GeV gamma-ray emission detected by the Fermi Large Area Telescope (LAT) and the duration of which extends beyond the prompt gamma-ray emission phase is also compatible with broad features of afterglow emission. We revisit the synchrotron self-Compton (SSC) emission model from a decelerating blastwave to fit multiwavelength data from three bright GRBs, namely GRB 190114C, GRB 130427A, and GRB 090510. We constrain the afterglow model parameter
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