Feedback of Efficient Shock Acceleration on Magnetic-field Structure Inside Young Type Ia Supernova Remnants

被引：0

作者：

Shen, Jun-Yu ^{[1
]}

Bao, Bi-Wen ^{[1
,2
]}

Zhang, Li ^{[1
]}

机构：

[1] Yunnan Univ, Dept Astron, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Peoples R China

[2] Yunnan Univ, Key Lab Stat Modeling & Data Anal Yunnan Prov, Kunming 650091, Peoples R China

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2024年 / 24卷 / 06期

基金：

中国国家自然科学基金;

关键词：

methods: numerical; ISM: magnetic fields; ISM: supernova remnants; magnetohydrodynamics (MHD); RAYLEIGH-TAYLOR INSTABILITIES; COSMIC-RAY ACCELERATION; PARTICLE-ACCELERATION; MAGNETOHYDRODYNAMIC SIMULATIONS; RADIO-EMISSION; TURBULENT; INTERSTELLAR; AMPLIFICATION; EVOLUTION; ORIGIN;

D O I：

10.1088/1674-4527/ad4598

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using an effective adiabatic index gamma(eff) to mimic the feedback of efficient shock acceleration, we simulate the temporal evolution of a young type Ia supernova remnant (SNR) with two different background magnetic field (BMF) topologies: a uniform and a turbulent BMF. The density distribution and magnetic-field characteristics of our benchmark SNR are studied with two-dimensional cylindrical magnetohydrodynamic simulations. When gamma(eff) is considered, we find that: (1) the two-shock structure shrinks and the downstream magnetic-field orientation is dominated by the Rayleigh-Taylor instability structures; (2) there exists more quasi-radial magnetic fields inside the shocked region; and (3) inside the intershock region, both the quasi-radial magnetic energy density and the total magnetic energy density are enhanced: in the radial direction, with gamma(eff) = 1.1, they are amplified about 10-26 times more than those with gamma(eff) = 5/3. While in the angular direction, the total magnetic energy densities could be amplified about 350 times more than those with gamma(eff) = 5/3, and there are more grid cells within the intershock region where the magnetic energy density is amplified by a factor greater than 100.

引用

页数：11

共 81 条

[1] DISCOVERY OF TeV GAMMA-RAY EMISSION FROM TYCHO'S SUPERNOVA REMNANT [J].

Acciari, V. A. ;

Aliu, E. ;

Arlen, T. ;

Aune, T. ;

Beilicke, M. ;

Benbow, W. ;

Bradbury, S. M. ;

Buckley, J. H. ;

Bugaev, V. ;

Byrum, K. ;

Cannon, A. ;

Cesarini, A. ;

Ciupik, L. ;

Collins-Hughes, E. ;

Cui, W. ;

Dickherber, R. ;

Duke, C. ;

Errando, M. ;

Finley, J. P. ;

Finnegan, G. ;

Fortson, L. ;

Furniss, A. ;

Galante, N. ;

Gall, D. ;

Gillanders, G. H. ;

Godambe, S. ;

Griffin, S. ;

Grube, J. ;

Guenette, R. ;

Gyuk, G. ;

Hanna, D. ;

Holder, J. ;

Hughes, J. P. ;

Hui, C. M. ;

Humensky, T. B. ;

Kaaret, P. ;

Karlsson, N. ;

Kertzman, M. ;

Kieda, D. ;

Krawczynski, H. ;

Krennrich, F. ;

Lang, M. J. ;

LeBohec, S. ;

Madhavan, A. S. ;

Maier, G. ;

Majumdar, P. ;

McArthur, S. ;

McCann, A. ;

Moriarty, P. ;

Mukherjee, R. .

ASTROPHYSICAL JOURNAL LETTERS, 2011, 730 (02)

[2] First detection of VHE γ-rays from SN 1006 by HESS [J].

Acero, F. ;

Aharonian, F. ;

Akhperjanian, A. G. ;

Anton, G. ;

de Almeida, U. Barres ;

Bazer-Bachi, A. R. ;

Becherini, Y. ;

Behera, B. ;

Beilicke, M. ;

Bernloehr, K. ;

Bochow, A. ;

Boisson, C. ;

Bolmont, J. ;

Borrel, V. ;

Brucker, J. ;

Brun, F. ;

Brun, P. ;

Buehler, R. ;

Bulik, T. ;

Buesching, I. ;

Boutelier, T. ;

Chadwick, P. M. ;

Charbonnier, A. ;

Chaves, R. C. G. ;

Cheesebrough, A. ;

Conrad, J. ;

Chounet, L. -M. ;

Clapson, A. C. ;

Coignet, G. ;

Dalton, M. ;

Daniel, M. K. ;

Davids, I. D. ;

Degrange, B. ;

Deil, C. ;

Dickinson, H. J. ;

Djannati-Atai, A. ;

Domainko, W. ;

Drury, L. O'C. ;

Dubois, F. ;

Dubus, G. ;

Dyks, J. ;

Dyrda, M. ;

Egberts, K. ;

Eger, P. ;

Espigat, P. ;

Fallon, L. ;

Farnier, C. ;

Fegan, S. ;

Feinstein, F. ;

Fiasson, A. .

ASTRONOMY & ASTROPHYSICS, 2010, 516

[3] The origin of galactic cosmic rays [J].

Amato, Elena .

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2014, 23 (07)

[4] Cosmic rays from super-novae [J].

Baade, W ;

Zwicky, F .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1934, 20 :259-263

[5] The evolution of adiabatic supernova remnants in a turbulent, magnetized medium [J].

Balsara, D ;

Benjamin, RA ;

Cox, DP .

ASTROPHYSICAL JOURNAL, 2001, 563 (02) :800-805

[6] Evolutions of Young Type Ia Supernova Remnants with Two Initial Density Profiles in a Turbulent Medium [J].

Bao, Biwen ;

Peng, Qiyong ;

Yang, Chuyuan ;

Zhang, Li .

ASTROPHYSICAL JOURNAL, 2021, 909 (02)

[7] 3D MHD Numerical Simulations of Polarized Emission in the Turbulent Background from Young Type Ia Supernova Remnants [J].

Bao, Biwen ;

Yang, Chuyuan ;

Zhang, Li .

ASTROPHYSICAL JOURNAL, 2018, 866 (01)

[8] Cosmic ray acceleration [J].

Bell, A. R. .

ASTROPARTICLE PHYSICS, 2013, 43 :56-70

[9] Turbulent amplification of magnetic field and diffusive shock acceleration of cosmic rays [J].

Bell, AR .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 353 (02) :550-558

[10] ACCELERATION OF COSMIC-RAYS IN SHOCK FRONTS .1. [J].

BELL, AR .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1978, 182 (01) :147-156

← 1 2 3 4 5 6 7 8 9 →