LEADER 03690nam 22005535 450 001 9910300559803321 005 20200701122922.0 010 $a3-319-97976-0 024 7 $a10.1007/978-3-319-97976-2 035 $a(CKB)4100000006098255 035 $a(MiAaPQ)EBC5507955 035 $a(DE-He213)978-3-319-97976-2 035 $a(PPN)230535704 035 $a(EXLCZ)994100000006098255 100 $a20180901d2018 u| 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aLow Frequency Radio Observations of Galaxy Clusters and Groups /$fby Thérèse Cantwell 205 $a1st ed. 2018. 210 1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2018. 215 $a1 online resource (151 pages) 225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 311 $a3-319-97975-2 327 $aIntroduction -- Techniques and Data Calibration -- A Newly-Discovered Radio Halo in MACS J2243.3-0935 -- GMRT Observations of Three Highly Disturbed Clusters -- LOFAR HBA Observations of NGC 6251 -- Conclusions. 330 $aThis book uses new data from the very low radio frequency telescope LOFAR to analyse the magnetic structure in the giant radio galaxy NGC6251. This analysis reveals that the magnetic field strength in the locality of this giant radio galaxy is an order of magnitude lower than in other comparable systems. Due to the observational limitations associated with capturing such huge astrophysical structures, giant radio galaxies are historically a poorly sampled population of objects; however, their preferential placement in the more rarefied regions of the cosmic web makes them a uniquely important probe of large-scale structures. In particular, the polarisation of the radio emissions from giant radio galaxies is one of the few tools available to us that can be used to measure magnetic fields in regions where the strength of those fields is a key differentiator for competing models of the origin of cosmic magnetism. Low frequency polarisation data are crucial for detailed analyses of magnetic structure, but they are also the most challenging type of observational data to work with. This book presents a beautifully coupled description of the technical and scientific analysis required to extract valuable information from such data and, as the new generation of low frequency radio telescopes reveals the larger population of giant radio galaxies, it offers a significant resource for future analyses. 410 0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 606 $aAstronomy$vObservations 606 $aAstronomy?Observations 606 $aCosmology 606 $aAstrophysics 606 $aAstronomy, Observations and Techniques$3https://scigraph.springernature.com/ontologies/product-market-codes/P22014 606 $aCosmology$3https://scigraph.springernature.com/ontologies/product-market-codes/P22049 606 $aAstrophysics and Astroparticles$3https://scigraph.springernature.com/ontologies/product-market-codes/P22022 615 0$aAstronomy 615 0$aAstronomy?Observations. 615 0$aCosmology. 615 0$aAstrophysics. 615 14$aAstronomy, Observations and Techniques. 615 24$aCosmology. 615 24$aAstrophysics and Astroparticles. 676 $a523.112 700 $aCantwell$b Thérèse$4aut$4http://id.loc.gov/vocabulary/relators/aut$01062193 906 $aBOOK 912 $a9910300559803321 996 $aLow Frequency Radio Observations of Galaxy Clusters and Groups$92523342 997 $aUNINA