Efficient acceleration and radiation in Poynting flux powered GRB outflows

By G. Drenkhahn, H. Spruit. 2002

363 citations recorded by the source corpus.

We investigate the eects of magnetic energy release by local magnetic dissipation processes in Poynting flux- powered GRBs. For typical GRB parameters (energy and baryon loading) the dissipation takes place mainly outside the pho- tosphere, producing non-thermal radiation. This process converts the total burst energy into prompt radiation at an eciency of 10-50%. At the same time the dissipation has the eect of accelerating the flow to a large Lorentz factor. For higher baryon loading, the dissipation takes place mostly inside the photosphere, the eciency of conversion of magnetic energy into radia- tion is lower, and an X-ray flash results instead of a GRB. We demonstrate these eects with numerical one-dimensional steady relativistic MHD calculations.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/82941efb63804e51c61e9e199c898544ae20b7d5

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In Astronomy and Astrophysics

1. Bing Zhang
2. Pawan Kumar
3. B. Metzger
4. D. Giannios
5. J. McKinney
6. A. Tchekhovskoy
7. E. Quataert
8. E. Liang

In Nuclear and High Energy Physics

1. Bing Zhang
2. D. Giannios
3. J. McKinney
4. A. Tchekhovskoy
5. Pawan Kumar
6. L. Sironi
7. Ramesh Narayan
8. B. Metzger

Citations in the corpus

• Prompt emission spectra from the photosphere of a GRB (2006, methodology): “The notation A = 10xAx is used and the “reference values” of the model parameters are σ0 = 100, ε = 0.1, Ω = 104 rad s−1, L = 1052 erg s−1 sterad−1; very close to those used in previous studies of the model (see Drenkhahn 2002; Drenkhahn & Spruit 2002; Giannios & Spruit 2005).”
• The Supernova Gamma-Ray Burst Connection (2006, background): “…on earlier models of electromagnetic explosions (Usov, 1992; Thompson, 1994; Meszaros and Rees, 1997), many groups (Wheeler et al., 2000; Drenkhahn and Spruit, 2002; Lyutikov and Blackman, 2001; Lyutikov and Blandford, 2003) 13The correct calculation must be done in three dimensions to…”
• General relativistic magnetohydrodynamic simulations of the jet formation and large-scale propagation from black hole accretion systems (2006, background): “…have been invoked to allow reconnection-driven magnetic energy to be converted into thermal energy to accelerate the flow (Drenkhahn 2002; Drenkhahn & Spruit 2002), although the reconnection rate assumed in those papers is not supported by the GEM project on reconnection (Shay et al.…”
• Polarization of Prompt Gamma-Ray Burst Emission: Evidence for Electromagnetically Dominated Outflow (2003, background): “Hydrodynamic (e.g. fireballs, Piran 1999, or external shocks, Dermer 2002, with σ ≪ 1) or hydromagnetic models (σ ∼ 1, e.g. Spruit et al. 2000, Drenkhahn & Spruit 2002, Vlahakis & Königl 2003) could also have a large scale ordered magnetic field (cannonballs, e.g. Dar 2003, need to rely on…”
• Short-duration gamma-ray bursts with extended emission from protomagnetar spin-down (2007, background): “If the magnetic energy is fully converted into the kinetic energy of bulk motion, either directly or through thermalization and subsequent thermal or magnetic pressure-driven expansion (e.g., Drenkhahn & Spruit 2002), then at sufficiently large radii Γ ∼ σ(RL) ≡ σLC (for σLC > 1).”
• Magnetic acceleration of ultrarelativistic jets in gamma-ray burst sources (2008, background): “…neutron star, black hole or accretion disc through the agency of an ordered magnetic field that threads the source (e.g. Usov 1992; Thompson 1994; Mészáros & Rees 1997; Katz 1997; Kluźniak & Ruderman 1998; Vlahakis & Königl 2001, 2003a,b; Blandford 2002; Drenkhahn & Spruit 2002; Vlahakis at al.”
• Magnetic Reconnection in Astrophysical and (2009, background): “…has been considered an energy source in pulsar winds (Coroniti 1990, Lyubarsky & Kirk 2001), giant flares in the magnetospheres of magnetars (Thompson & Duncan 1995, 2001; Lyutikov 2006), gamma-ray bursts (Drenkhahn & Spruit 2002), and jets from active galactic nuclei (Romanova & Lovelace 1992).”
• Plasmoids in relativistic reconnection, from birth to adulthood: first they grow, then they go (2016, background): “…Sironi & Spitkovsky 2011a), jets from active galactic nuclei (AGNs; e.g.,Romanova & Lovelace 1992; Giannios et al. 2009, 2010; Giannios 2013) and gamma-ray bursts (GRBs; e.g.,Thompson 1994, 2006; Usov 1994; Spruit et al. 2001; Drenkhahn & Spruit 2002; Lyutikov & Blandford 2003; Giannios 2008).”
• Physical Processes Shaping Gamma-Ray Burst X-Ray Afterglow Light Curves: Theoretical Implications from the Swift X-Ray Telescope Observations (2005, background): “…comes from the internal shocks due to the collisions among many engineejected shells (Rees &Mészáros 1994; Paczynski & Xu 1994) or is due to magnetic or other dissipation processes at a radius smaller than the fireball deceleration radius (e.g., Drenkhahn & Spruit 2002; Rees & Mészáros 2005).”
• The Cooling Behavior of Thermal Pulses in Gamma-Ray Bursts (2004, methodology): “In the detailed numerical modeling by Drenkhahn & Spruit (2002) of a Poynting flux wind, they illustrated the different scenarios by varying the -parameter.”
• Particle Acceleration and Magnetic Dissipation in Relativistic Current Sheet of Pair Plasmas (2007, background): “…loop of theGalactic center (Heyvaerts et al.1988), the jets from active galactic nuclei (di Matteo 1998; Schopper et al. 1998; Lesch &Birk 1998; Larrabee et al. 2003), quite probably gamma-ray bursts (Drenkhahn & Spruit 2002), and pulsar winds (Michel 1982; Coroniti 1990; Michel 1994).”
• The role of kink instability in Poynting-flux dominated jets (2006, background): “7, the radiative efficiency of the nonaxisymmetric model (Drenkhahn & Spruit 2002) is also shown for different values of σ0.”
• Non-thermal particle acceleration in collisionless relativistic electron-proton reconnection (2016, neutral): “…al. 2012a,b, 2013, 2014a,b; Uzdensky & Spitkovsky 2014; Philippov & Spitkovsky 2014; Philippov et al. 2014; Cerutti et al. 2015); gamma-ray bursts (GRBs) (Drenkhahn & Spruit 2002; Giannios & Spruit 2006; McKinney & Uzdensky 2012); magnetospheres of magnetars (Lyutikov 2003, 2006; Uzdensky 2011);…”
• Reconciling observed gamma-ray burst prompt spectra with synchrotron radiation? (2010, background): “…(1997); Daigne & Mochkovitch (1998)), or (iii) magnetic energy that can be dissipated via the reconnection of field lines (Thompson 1994; Meszaros & Rees 1997; Spruit et al. 2001; Drenkhahn & Spruit 2002; Lyutikov & Blandford 2003; Giannios & Spruit 2005) and then radiated by accelerated particles.”
• Gamma-Ray Bursts in the Swift Era (2007, neutral): “…Lloyd & Petrosian (2000), Ghisellini et al. (2000),Panaitescu & Mészáros (2000), Medvedev (2000), Mészáros & Rees (2000), Spruit et al. (2001), Drenkhahn & Spruit (2002), Mészáros et al. (2002), Zhang & Mészáros (2002c), Dai & Lu (2002a), Pe’er & Waxman (2004a, 2005), Rees &…”