Synchrotron Emission on the Largest Scales: Radio Detection of the Cosmic-Web

被引：26
作者：
Brown, Shea D. [1 ]
机构：
[1] CSIRO Astron & Space Sci, Parkes, NSW 2870, Australia
来源：
JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 2011年 / 32卷 / 04期
关键词：
Relativistic plasmas; cosmology: cosmic-web; ABSOLUTE SKY BRIGHTNESS; MAGNETIC-FIELDS; SHOCK-WAVES; UNIVERSE; BARYONS; ACCELERATION; POLARIZATION; SIMULATIONS; TURBULENCE; GALAXIES;
D O I：
10.1007/s12036-011-9114-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Shocks and turbulence generated during large-scale structure formation are predicted to produce large-scale, low surface-brightness synchrotron emission. On the largest scales, this emission is globally correlated with the thermal baryon distribution, and constitutes the 'synchrotron cosmic-web'. I present the observational prospects and challenges for detecting this faint emission with upcoming SKA pathfinders.
引用
收藏
页码：577 / 584
页数：8
相关论文
共 42 条
[1]   Cross-correlation of the cosmic microwave background with the 2MASS galaxy survey: Signatures of dark energy, hot gas, and point sources [J].
Afshordi, N ;
Loh, YS ;
Strauss, MA .
PHYSICAL REVIEW D, 2004, 69 (08) :15
[2]   Exploring the magnetized cosmic web through low-frequency radio emission [J].
Battaglia, N. ;
Pfrommer, C. ;
Sievers, J. L. ;
Bond, J. R. ;
Ensslin, T. A. .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 393 (04) :1073-1089
[3]   PARTICLE-ACCELERATION AT ASTROPHYSICAL SHOCKS - A THEORY OF COSMIC-RAY ORIGIN [J].
BLANDFORD, R ;
EICHLER, D .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1987, 154 (01) :1-75
[4]   A correlation between the cosmic microwave background and large-scale structure in the Universe [J].
Boughn, S ;
Crittenden, R .
NATURE, 2004, 427 (6969) :45-47
[5]  
Bregman J. N., 2009, ASTRP2010 ASTRONOMY, P24
[6]   Cross-correlation of diffuse synchrotron and large-scale structures [J].
Brown, Shea ;
Farnsworth, Damon ;
Rudnick, Lawrence .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2010, 402 (01) :2-6
[7]   Giant Radio Halos in Galaxy Clusters as Probes of Particle Acceleration in Turbulent Regions [J].
Brunetti, G. .
JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 2011, 32 (04) :437-445
[8]   Where are the baryons? II. Feedback effects [J].
Cen, Renyue ;
Ostriker, Jeremiah P. .
ASTROPHYSICAL JOURNAL, 2006, 650 (02) :560-572
[9]   Where are the baryons? [J].
Cen, RY ;
Ostriker, JP .
ASTROPHYSICAL JOURNAL, 1999, 514 (01) :1-6
[10]   CHARACTERISTIC LENGTHS OF MAGNETIC FIELD IN MAGNETOHYDRODYNAMIC TURBULENCE [J].
Cho, Jungyeon ;
Ryu, Dongsu .
ASTROPHYSICAL JOURNAL LETTERS, 2009, 705 (01) :L90-L94
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