High β effects on cosmic ray streaming in galaxy clusters
被引:24
作者:
Wiener, Joshua
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
Univ Wisconsin, Dept Astron, Madison, WI 53706 USAUniv Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
Wiener, Joshua
[1
,2
]
Zweibel, Ellen G.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Astron, Madison, WI 53706 USA
Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USAUniv Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
Zweibel, Ellen G.
[2
,3
]
Oh, S. Peng
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
Oh, S. Peng
[1
]
机构:
[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
[2] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA
[3] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA
MHD;
cosmic rays;
galaxies: clusters: general;
gamma-rays: galaxies: clusters;
radio continuum: general;
GIANT RADIO HALOES;
COMA CLUSTER;
MAGNETIC-FIELDS;
SCALING RELATIONS;
TURBULENCE;
ACCELERATION;
ELECTRONS;
EMISSION;
PHYSICS;
ORIGIN;
D O I:
10.1093/mnras/stx2603
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
Diffuse, extended radio emission in galaxy clusters, commonly referred to as radio haloes, indicate the presence of high energy cosmic ray (CR) electrons and cluster-wide magnetic fields. We can predict from theory the expected surface brightness of a radio halo, given magnetic field and CR density profiles. Previous studies have shown that the nature of CR transport can radically effect the expected radio halo emission from clusters (Wiener, Oh & Guo 2013). Reasonable levels of magnetohydrodynamic (MHD) wave damping can lead to significant CR streaming speeds. But a careful treatment of MHD waves in a high beta plasma, as expected in cluster environments, reveals damping rates may be enhanced by a factor of beta(1/2). This leads to faster CR streaming and lower surface brightnesses than without this effect. In this work, we re-examine the simplified, 1D Coma cluster simulations (with radial magnetic fields) of Wiener et al. (2013) and discuss observable consequences of this high beta damping. Future work is required to study this effect in more realistic simulations.
机构:
Commissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Max Planck Inst Kernphys, D-69117 Heidelberg, GermanyCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Vannoni, G.
Aharonian, F. A.
论文数: 0引用数: 0
h-index: 0
机构:
Dublin Inst Adv Studies, Dublin 2, Ireland
Max Planck Inst Kernphys, D-69117 Heidelberg, GermanyCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Aharonian, F. A.
Gabici, S.
论文数: 0引用数: 0
h-index: 0
机构:
Dublin Inst Adv Studies, Dublin 2, Ireland
Univ Paris 07, CNRS, Astroparticule & Cosmol APC, F-75205 Paris 13, FranceCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Gabici, S.
Kelner, S. R.
论文数: 0引用数: 0
h-index: 0
机构:
Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
Moscow Engn Phys Inst, Moscow 115409, RussiaCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Kelner, S. R.
Prosekin, A.
论文数: 0引用数: 0
h-index: 0
机构:
Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
Moscow Engn Phys Inst, Moscow 115409, RussiaCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
机构:
Univ Calif Santa Cruz, UCO Lick Observ, Dept Astron & Astrophys, Santa Cruz, CA 95064 USAUniv Calif Santa Cruz, UCO Lick Observ, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
机构:
Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USADESY, D-15738 Zeuthen, Germany
机构:
Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden
AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden
Royal Swedish Acad Sci, SE-10405 Stockholm, SwedenDESY, D-15738 Zeuthen, Germany
Conrad, J.
D'Ammando, F.
论文数: 0引用数: 0
h-index: 0
机构:
INAF Ist Radioastron, I-40129 Bologna, ItalyDESY, D-15738 Zeuthen, Germany
D'Ammando, F.
论文数: 引用数:
h-index:
机构:
de Angelis, A.
论文数: 引用数:
h-index:
机构:
de Palma, F.
Dermer, C. D.
论文数: 0引用数: 0
h-index: 0
机构:
Naval Res Lab, Div Space Sci, Washington, DC 20375 USADESY, D-15738 Zeuthen, Germany
机构:
ESRIN, ASI ASDC, I-00040 Frascati, Italy
Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, ItalyESRIN, ASI ASDC, I-00040 Frascati, Italy
Colafrancesco, S.
Marchegiani, P.
论文数: 0引用数: 0
h-index: 0
机构:
Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy
Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, ItalyESRIN, ASI ASDC, I-00040 Frascati, Italy
机构:
Commissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Max Planck Inst Kernphys, D-69117 Heidelberg, GermanyCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Vannoni, G.
Aharonian, F. A.
论文数: 0引用数: 0
h-index: 0
机构:
Dublin Inst Adv Studies, Dublin 2, Ireland
Max Planck Inst Kernphys, D-69117 Heidelberg, GermanyCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Aharonian, F. A.
Gabici, S.
论文数: 0引用数: 0
h-index: 0
机构:
Dublin Inst Adv Studies, Dublin 2, Ireland
Univ Paris 07, CNRS, Astroparticule & Cosmol APC, F-75205 Paris 13, FranceCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Gabici, S.
Kelner, S. R.
论文数: 0引用数: 0
h-index: 0
机构:
Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
Moscow Engn Phys Inst, Moscow 115409, RussiaCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
Kelner, S. R.
Prosekin, A.
论文数: 0引用数: 0
h-index: 0
机构:
Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
Moscow Engn Phys Inst, Moscow 115409, RussiaCommissariat Energie Atom, DSM Irfu SPP, F-91191 Gif Sur Yvette, France
机构:
Univ Calif Santa Cruz, UCO Lick Observ, Dept Astron & Astrophys, Santa Cruz, CA 95064 USAUniv Calif Santa Cruz, UCO Lick Observ, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
机构:
Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USADESY, D-15738 Zeuthen, Germany
机构:
Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden
AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden
Royal Swedish Acad Sci, SE-10405 Stockholm, SwedenDESY, D-15738 Zeuthen, Germany
Conrad, J.
D'Ammando, F.
论文数: 0引用数: 0
h-index: 0
机构:
INAF Ist Radioastron, I-40129 Bologna, ItalyDESY, D-15738 Zeuthen, Germany
D'Ammando, F.
论文数: 引用数:
h-index:
机构:
de Angelis, A.
论文数: 引用数:
h-index:
机构:
de Palma, F.
Dermer, C. D.
论文数: 0引用数: 0
h-index: 0
机构:
Naval Res Lab, Div Space Sci, Washington, DC 20375 USADESY, D-15738 Zeuthen, Germany
机构:
ESRIN, ASI ASDC, I-00040 Frascati, Italy
Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, ItalyESRIN, ASI ASDC, I-00040 Frascati, Italy
Colafrancesco, S.
Marchegiani, P.
论文数: 0引用数: 0
h-index: 0
机构:
Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy
Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, ItalyESRIN, ASI ASDC, I-00040 Frascati, Italy