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Sökning: onr:"swepub:oai:research.chalmers.se:e0d30c10-a1b6-4df7-a1e7-84e496e167d4" > Polarized point sou...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005838naa a2200697 4500
001oai:research.chalmers.se:e0d30c10-a1b6-4df7-a1e7-84e496e167d4
003SwePub
008180605s2018 | |||||||||||000 ||eng|
0247 a https://research.chalmers.se/publication/5188982 URI
0247 a https://research.chalmers.se/publication/5034282 URI
0247 a https://doi.org/10.1051/0004-6361/2017322282 DOI
040 a (SwePub)cth
041 a engb eng
042 9 SwePub
072 7a for2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Van Eck, C.L.u Radboud Universiteit,Radboud University4 aut
2451 0a Polarized point sources in the LOFAR Two-meter Sky Survey: A preliminary catalog
264 c 2018-06-01
264 1b EDP Sciences,c 2018
338 a electronic2 rdacarrier
520 a The polarization properties of radio sources at very low frequencies (<200 MHz) have not been widely measured, but the new generation of low-frequency radio telescopes, including the Low Frequency Array (LOFAR: a Square Kilometre Array Low pathfinder), now gives us the opportunity to investigate these properties. In this paper, we report on the preliminary development of a data reduction pipeline to carry out polarization processing and Faraday tomography for data from the LOFAR Two-meter Sky Survey (LOTSS) and present the results of this pipeline from the LOTSS preliminary data release region (10h45m–15h30m right ascension, 45°–57° declination, 570 square degrees). We have produced a catalog of 92 polarized radio sources at 150 MHz at 4.′3 resolution and 1 mJy rms sensitivity, which is the largest catalog of polarized sources at such low frequencies. We estimate a lower limit to the polarized source surface density at 150 MHz, with our resolution and sensitivity, of 1 source per 6.2 square degrees. We find that our Faraday depth measurements are in agreement with previous measurements and have significantly smaller errors. Most of our sources show significant depolarization compared to 1.4 GHz, but there is a small population of sources with low depolarization indicating that their polarized emission is highly localized in Faraday depth. We predict that an extension of this work to the full LOTSS data would detect at least 3400 polarized sources using the same methods, and probably considerably more with improved data processing.
650 7a NATURVETENSKAPx Fysikx Subatomär fysik0 (SwePub)103012 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Subatomic Physics0 (SwePub)103012 hsv//eng
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng
653 a ISM: magnetic fields
653 a Polarization
7001 a Haverkorn, M.u Radboud Universiteit,Radboud University4 aut
7001 a Alves, M.I.R.u Radboud Universiteit,Radboud University4 aut
7001 a Beck, R.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Best, P.N.u University of Edinburgh4 aut
7001 a Carretti, E.u Istituto nazionale di astrofisica (INAF)4 aut
7001 a Chyzy, K.u Jagiellonian University in Kraków, Poland4 aut
7001 a Farnes, J.S.u Radboud Universiteit,Radboud University4 aut
7001 a Ferriere, K.u Université de Toulouse,University of Toulouse4 aut
7001 a Hardcastle, M. J.u University of Hertfordshire4 aut
7001 a Heald, G.u Rijksuniversiteit Groningen,University of Groningen,Commonwealth Scientific and Industrial Research Organisation (CSIRO)4 aut
7001 a Horellou, Cathy,d 1967u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)horellou
7001 a Iacobelli, M.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut
7001 a Jelic, V.4 aut
7001 a Mulcahy, D.D.u University of Manchester4 aut
7001 a O'Sullivan, S.u Universität Hamburg,University of Hamburg4 aut
7001 a Polderman, I.M.u Radboud Universiteit,Radboud University4 aut
7001 a Reich, Wolfgangu Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Riseley, C. J.u Commonwealth Scientific and Industrial Research Organisation (CSIRO)4 aut
7001 a Rottgering, H.J.A.u Universiteit Leiden (UL),Leiden University (UL)4 aut
7001 a Schnitzeler, D.H.F.M.u Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)4 aut
7001 a Shimwell, T. W.u Netherlands Institute for Radio Astronomy (ASTRON),Universiteit Leiden (UL),Leiden University (UL)4 aut
7001 a Vacca, V.u Istituto nazionale di astrofisica (INAF)4 aut
7001 a Vink, J.u Universiteit Van Amsterdam,University of Amsterdam4 aut
7001 a White, G. J.u Open University4 aut
7102 a Radboud Universiteitb Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG)4 org
7730 t Astronomy and Astrophysicsd : EDP Sciencesg 613q 613x 0004-6361x 1432-0746
8564 u https://research.chalmers.se/publication/518898/file/518898_Fulltext.pdfx primaryx freey FULLTEXT
8564 u https://www.aanda.org/articles/aa/pdf/2018/05/aa32228-17.pdf
8564 8u https://research.chalmers.se/publication/518898
8564 8u https://research.chalmers.se/publication/503428
8564 8u https://doi.org/10.1051/0004-6361/201732228

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