Sökning: WFRF:(Broderick J) > Discovery of carbon...
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000 | 12197naa a2201633 4500 | |
001 | oai:DiVA.org:lnu-51553 | |
003 | SwePub | |
008 | 160329s2014 | |||||||||||000 ||eng| | |
009 | oai:research.chalmers.se:47e30820-731a-463f-b243-51c8fa0eccac | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-515532 URI |
024 | 7 | a https://doi.org/10.1093/mnras/stt21582 DOI |
024 | 7 | a https://research.chalmers.se/publication/1934112 URI |
040 | a (SwePub)lnud (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Oonk, J. B. R.u Netherlands Institute for Radio Astronomy (ASTRON),Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy,University of Southampton4 aut |
245 | 1 0 | a Discovery of carbon radio recombination lines in absorption towards Cygnus A |
264 | c 2013-12-07 | |
264 | 1 | b Oxford University Press (OUP),c 2014 |
338 | a print2 rdacarrier | |
520 | a We present the first detection of carbon radio recombination line absorption along the line of sight to Cygnus A. The observations were carried out with the Low Frequency Array in the 33–57 MHz range. These low-frequency radio observations provide us with a new line of sight to study the diffuse, neutral gas in our Galaxy. To our knowledge this is the first time that foreground Milky Way recombination line absorption has been observed against a bright extragalactic background source. By stacking 48 carbon α lines in the observed frequency range we detect carbon absorption with a signal-to-noise ratio of about 5. The average carbon absorption has a peak optical depth of 2 × 10−4, a line width of 10 km s−1 and a velocity of +4 km s−1 with respect to the local standard of rest. The associated gas is found to have an electron temperature Te ∼ 110 K and density ne ∼ 0.06 cm−3. These properties imply that the observed carbon α absorption likely arises in the cold neutral medium of the Orion arm of the Milky Way. Hydrogen and helium lines were not detected to a 3σ peak optical depth limit of 1.5 × 10−4 for a 4 km s−1 channel width. Radio recombination lines associated with Cygnus A itself were also searched for, but are not detected. We set a 3σ upper limit of 1.5 × 10−4 for the peak optical depth of these lines for a 4 km s−1 channel width. | |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
653 | a ISM | |
653 | a local interstellar matter | |
653 | a radio lines | |
653 | a Astroparticle Physics | |
653 | a Astropartikelfysik | |
700 | 1 | a van Weeren, R. J.u Harvard-Smithsonian Center for Astrophysics,Universiteit Leiden (UL),Leiden University (UL),Netherlands Institute for Radio Astronomy (ASTRON),Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy4 aut |
700 | 1 | a Salgado, F.u Universiteit Leiden (UL),Leiden University (UL)4 aut |
700 | 1 | a Morabito, L. K.u Universiteit Leiden (UL),Leiden University (UL),University of Manchester,Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy4 aut |
700 | 1 | a Tielens, A. G. G. M.u Universiteit Leiden (UL),Leiden University (UL),Netherlands Institute for Radio Astronomy (ASTRON),Space Telescope Science Institute (STScI),Universiteit Van Amsterdam,University of Amsterdam,Université Nice Sophia Antipolis (UNS),Leibniz-Institut Für Astrophysik Potsdam,Leibniz Institute for Astrophysics Potsdam4 aut |
700 | 1 | a Rottgering, H. J. A.u Universiteit Leiden (UL),Leiden University (UL),Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy4 aut |
700 | 1 | a Asgekar, A.u Universität Hamburg,University of Hamburg,Radboud Universiteit,Radboud University,Netherlands Institute for Radio Astronomy (ASTRON),Universiteit Van Amsterdam,University of Amsterdam,University Of Oxford,Curtin University,University of Southampton,Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy4 aut |
700 | 1 | a White, G. J.u Open University,STFC Rutherford Appleton Laboratory,Universite d'Orleans,University of Orléans4 aut |
700 | 1 | a Alexov, A.4 aut |
700 | 1 | a Anderson, J.4 aut |
700 | 1 | a Avruch, I. M.u Netherlands Institute for Space Research (SRON),Universiteit Leiden (UL),Leiden University (UL)4 aut |
700 | 1 | a Batejat, Fabien,d 1979u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)em1fabat |
700 | 1 | a Beck, R.4 aut |
700 | 1 | a Bell, M. E.u The University of Sydney4 aut |
700 | 1 | a van Bemmel, I.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Bentum, M. J.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Bernardi, G.u Rhodes University4 aut |
700 | 1 | a Best, P.u University of Edinburgh4 aut |
700 | 1 | a Bonafede, A.4 aut |
700 | 1 | a Breitling, F.u Leibniz-Institut Für Astrophysik Potsdam,Leibniz Institute for Astrophysics Potsdam4 aut |
700 | 1 | a Brentjens, M.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Broderick, J.4 aut |
700 | 1 | a Brüggen, M.u Universität Hamburg,University of Hamburg4 aut |
700 | 1 | a Butcher, H. R.u Australian National University4 aut |
700 | 1 | a Ciardi, B.u Max-Planck-Institut für Astrophysik,Max Planck Institute for Astrophysics4 aut |
700 | 1 | a Conway, John,d 1963u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)jconway |
700 | 1 | a Corstanje, A.4 aut |
700 | 1 | a de Gasperin, F.u Universität Hamburg,University of Hamburg4 aut |
700 | 1 | a de Geus, E.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a de Vos, M.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Duscha, S.u Netherlands Institute for Radio Astronomy (ASTRON),Universität Bielefeld,Bielefeld University4 aut |
700 | 1 | a Eislöffel, J.u Thüringer Landessternwarte Tautenburg,Ruhr-Universität Bochum4 aut |
700 | 1 | a Engels, D.4 aut |
700 | 1 | a van Enst, J.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Falcke, H.u Netherlands Institute for Radio Astronomy (ASTRON),Radboud Universiteit,Radboud University4 aut |
700 | 1 | a Fallows, R. A.4 aut |
700 | 1 | a Fender, R.u University of Southampton4 aut |
700 | 1 | a Ferrari, C.u Université Nice Sophia Antipolis (UNS)4 aut |
700 | 1 | a Frieswijk, W.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Garrett, M. A.4 aut |
700 | 1 | a Grießmeier, J.4 aut |
700 | 1 | a Hamaker, J. P.u Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen4 aut |
700 | 1 | a Hassall, T. E.u University of Manchester,University of Southampton,The University of Sydney4 aut |
700 | 1 | a Heald, G.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Hessels, J. W. T.u Netherlands Institute for Radio Astronomy (ASTRON),Universiteit Van Amsterdam,University of Amsterdam4 aut |
700 | 1 | a Hoeft, M.u Thüringer Landessternwarte Tautenburg,Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Horneffer, A.4 aut |
700 | 1 | a van der Horst, A.4 aut |
700 | 1 | a Iacobelli, M.4 aut |
700 | 1 | a Jackson, N. J.u University of Manchester,Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Juette, E.4 aut |
700 | 1 | a Karastergiou, A.4 aut |
700 | 1 | a Klijn, W.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Kohler, J.u Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy4 aut |
700 | 1 | a Kondratiev, V. I.u Astro Space Center of Lebedev Physical Institute,Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Kramer, M.4 aut |
700 | 1 | a Kuniyoshi, M.4 aut |
700 | 1 | a Kuper, G.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a van Leeuwen, J.u University of Southampton,Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Maat, P.u Netherlands Institute for Radio Astronomy (ASTRON),Observatoire de Lyon,Lyon Observatory4 aut |
700 | 1 | a Macario, G.4 aut |
700 | 1 | a Mann, G.4 aut |
700 | 1 | a Markoff, S.u Universiteit Van Amsterdam,University of Amsterdam,Leibniz-Institut Für Astrophysik Potsdam,Leibniz Institute for Astrophysics Potsdam4 aut |
700 | 1 | a McKean, J. P.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Mevius, M.u Universite d'Orleans,University of Orléans,Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Miller-Jones, J. C. A.4 aut |
700 | 1 | a Mol, J. D.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Mulcahy, D. D.u Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy4 aut |
700 | 1 | a Munk, H.4 aut |
700 | 1 | a Norden, M. J.4 aut |
700 | 1 | a Orru, E.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Paas, H.4 aut |
700 | 1 | a Pandey-Pommier, M.4 aut |
700 | 1 | a Pandey, V. N.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Pizzo, R.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Polatidis, A. G.4 aut |
700 | 1 | a Reich, W.4 aut |
700 | 1 | a Scaife, A. M. M.4 aut |
700 | 1 | a Schoenmakers, A.4 aut |
700 | 1 | a Schwarz, D.4 aut |
700 | 1 | a Shulevski, A.4 aut |
700 | 1 | a Sluman, J.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Smirnov, O.u Rhodes University4 aut |
700 | 1 | a Sobey, C.u Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy4 aut |
700 | 1 | a Stappers, B. W.u University of Manchester4 aut |
700 | 1 | a Steinmetz, M.4 aut |
700 | 1 | a Swinbank, J.u Universiteit Van Amsterdam,University of Amsterdam4 aut |
700 | 1 | a Tagger, M.4 aut |
700 | 1 | a Tang, Y.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Tasse, C.u Observatoire de Paris-Meudon4 aut |
700 | 1 | a Thoudam, Satyendrau Radboud Universiteit,Radboud University,Radboud University Nijmegen, The Netherlands4 aut0 (Swepub:lnu)sathaa |
700 | 1 | a Thoudam, Satyendrau Radboud University Nijmegen, The Netherlands4 aut0 (Swepub:lnu)sathaa |
700 | 1 | a Toribio, C.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a van Nieuwpoort, R.u Netherlands Institute for Radio Astronomy (ASTRON),Netherlands eScience Center4 aut |
700 | 1 | a Vermeulen, R.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Vocks, C.u Leibniz-Institut Für Astrophysik Potsdam,Leibniz Institute for Astrophysics Potsdam4 aut |
700 | 1 | a Vogt, C.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Wijers, R. A. M. J.u Universiteit Van Amsterdam,University of Amsterdam4 aut |
700 | 1 | a Wise, M. W.4 aut |
700 | 1 | a Wucknitz, O.u Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy,Universität Bonn,University of Bonn4 aut |
700 | 1 | a Yatawatta, S.u Netherlands Institute for Radio Astronomy (ASTRON)4 aut |
700 | 1 | a Zarka, P.u Open University4 aut |
700 | 1 | a Zensus, A.4 aut |
710 | 2 | a Netherlands Institute for Radio Astronomy (ASTRON)b Max-Planck Institut für Radioastronomie4 org |
773 | 0 | t Monthly notices of the Royal Astronomical Societyd : Oxford University Press (OUP)g 437:4, s. 3506-3515q 437:4<3506-3515x 0035-8711x 1365-2966 |
856 | 4 | u https://academic.oup.com/mnras/article-pdf/437/4/3506/18498763/stt2158.pdf |
856 | 4 | u http://publications.lib.chalmers.se/records/fulltext/193411/local_193411.pdfx primaryx freey FULLTEXT |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-51553 |
856 | 4 8 | u https://doi.org/10.1093/mnras/stt2158 |
856 | 4 8 | u https://research.chalmers.se/publication/193411 |
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