Results 1 to 10 of about 13,923,765 (402)
Development in Astronomy and Space Science in Africa [PDF]
Nature Astronomy, 2018 The development of astronomy and space science in Africa has grown
significantly over the past few years. These advancements make the United
Nations Sustainable Development Goals more achievable, and open up the
possibility of new beneficial ...Backes, Michael, Baki, Paul, Baratoux, David, Benkhaldoun, Zouhair, Bode, Michael, Charles, Phil, Govender, Kevin, Jurua, Edward, Klutse, Nana A. Browne, Mamo, Alemiye, Manxoyi, Sivuyile, McBride, Vanessa, Mimouni, Jamal, Nemaungani, Takalani, Nkundabakura, Pheneas, Okere, Bonaventure, Pović, Mirjana, Saad, Somaya, Simpemba, Prospery C., Tessema, Solomon Belay, van Groningen, Ernst, Walwa, Tefera, Yilma, Abdissa +22 morecore +2 more sourcesThe Parkes Pulsar Timing Array Project [PDF]
Publications Astronomical Society of Australia, 2006 A ‘pulsar timing array’ (PTA), in which observations of a large sample of pulsars spread across the celestial sphere are combined, allows investigation of ‘global’ phenomena such as a background of gravitational waves or instabilities in atomic ...R. Manchester, G. Hobbs, M. Bailes, W. Coles, W. Straten, M. Keith, R. Shannon, N. Bhat, A. Brown, S. Burke-Spolaor, D. Champion, A. Chaudhary, R. Edwards, G. Hampson, A. Hotan, A. Jameson, F. Jenet, M. Kesteven, J. Khoo, J. Kocz, K. Maciesiak, S. Osłowski, V. Ravi, J. Reynolds, J. Sarkissian, J. Verbiest, Z. Wen, W. Wilson, D. Yardley, W. M. Yan, X. P. Y. C. Astronomy, S. Science, Epping Nsw, Australia., S. U. O. Technology, Hawthorn Vic, University of California at San Diego, Carmen Sandiego, Usa, Curtin University, W. Bentley, Jet propulsion Laboratory, C. I. O. Technology., CA Pasadena, M. Astronomie, Bonn, H Germany, 10 James Street, Whittlesea Vic, U. T. A. Brownsville, TX Brownsville, H. C. F. Astrophysics, M. Cambridge, University of Zielona Gora, Zielona Góra, Poland., U. Melbourne, Vic, National Astronomical Observatories, Cas, Beijing, China, U. Sydney, Nsw, Xinjiang Astronomical Observatory, Urumqi, S. University, Chongqing +67 moresemanticscholar +1 more sourceLOFAR Discovery of a 23.5 s Radio Pulsar [PDF]
Astrophysical Journal, 2018 We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR Tied-Array All-Sky Survey (LOTAAS), an all-northern-sky survey for ...C. Tan, C. Bassa, S. Cooper, T. J. Dijkema, P. Esposito, J. Hessels, V. Kondratiev, M. Kramer, D. Michilli, S. Sanidas, T. Shimwell, B. Stappers, J. V. Leeuwen, I. Cognard, J. Grießmeier, A. Karastergiou, E. Keane, C. Sobey, P. W. J. B. C. F. Astrophysics, S. O. Physics, Astronomy, U. Manchester, Manchester, Uk, Astron, The Netherlands Institute for Radio Astronomy, The Netherlands., A. S. M. F. Astronomy, U. Amsterdam, Amsterdam, I. D. F. Cosmica, Milano, Italy, A. Centre, L. Institute, R. A. O. Sciences, Moscow, Russia., Max Planck Institut fur Radioastronomie, Germany, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Universit'e d'Orl'eansCNRS, France, Station de radioastronomie de Nanccay, O. Paris, Cnrsinsu, O. Astrophysics, Denys Wilkinson Building, Keble Road, Oxford, Department of Applied Physics, U. W. Cape, S. Africa, Electronics, Rhodes University, Ska Organisation, Jodrell Bank Observatory, I. C. F. R. A. R. -. C. University, Australia., C. Astronomy, S. Science +60 moresemanticscholar +1 more sourceLow-frequency Faraday rotation measures towards pulsars using LOFAR: probing the 3D Galactic halo magnetic field [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We determined Faraday rotation measures (RMs) towards 137 pulsars in the northern sky, using Low-Frequency Array (LOFAR) observations at 110–190 MHz. This low-frequency RM catalogue, the largest to date, improves the precision of existing RM measurements C. Sobey, A. Bilous, J. Grießmeier, J. Hessels, A. Karastergiou, E. Keane, V. Kondratiev, M. Kramer, D. Michilli, A. Noutsos, M. Pilia, E. J. Polzin, B. Stappers, C. M. Tan, J. V. Leeuwen, J. Verbiest, P. Weltevrede, G. Heald, M. I. R. Alves, E. Carretti, T. Enßlin, M. Haverkorn, M. Iacobelli, W. Reich, C. University, C. Astronomy, S. Science, Astron Netherlands Institute for Radio Astronomy Anton Pa Astronomy, L. -. U. D. Cnrs, Station de radioastronomie de Nanccay, O. Astrophysics, Department of Physics Astronomy University of the Western Cape, Department of Applied Physics, Electronics Rhodes University, Ska Organisation, A. Institute, M. F. Astronomy, Department of Physics - California Lutheran University, M. S. Institute, I. Cagliari, J. B. C. F. Astrophysics, Fakultat fur Physik Universitat Bielefeld, D. O. U. O. Nijmegen, I. D. Radioastronomia, M. F. Astrophysik, D. I. F. Astronomy, Astrophysics +46 moresemanticscholar +1 more sourceThe Galactic Center Molecular Cloud Survey. I. A Steep Linewidth-Size Relation & Suppression of Star Formation [PDF]
, 2016 The Central Molecular Zone (CMZ; inner $\sim{}200~\rm{}pc$) of the Milky Way is a star formation (SF) environment with very extreme physical properties.J. Kauffmann, T. Pillai, Qizhou Zhang, K. Menten, P. Goldsmith, Xing Lu, A. W. M. F. Radioastronomie, H. C. F. Astrophysics, Jet propulsion Laboratory, C. I. O. Technology., School of Physics Astronomy, S. Science, N. University, D. D. Astronom'ia, U. D. Chile +14 moresemanticscholar +1 more sourceWHAT DETERMINES THE DENSITY STRUCTURE OF MOLECULAR CLOUDS? A CASE STUDY OF ORION B WITH HERSCHEL [PDF]
, 2013 A key parameter to the description of all star formation processes is the density structure of the gas. In this Letter, we make use of probability distribution functions (PDFs) of Herschel column density maps of Orion B, Aquila, and Polaris, obtained ...N. Schneider, P. Andre', V. Konyves, S. Bontemps, F. Motte, C. Federrath, D. Ward-Thompson, D. Arzoumanian, M. Benedettini, E. Bressert, P. Didelon, J. D. Francesco, M. Griffin, M. Hennemann, T. Hill, P. Palmeirim, S. Pezzuto, N. Peretto, A. Roy, K. Rygl, L. Spinoglio, G. W. I. Ceadsm, L. A. C. P. Diderot, OASULAB- Cnrs, Universite Bordeaux Ias, 11 CNRSUniversiteParis-Sud, MoCA, M. University, Australia, I. F. Astrophysik, U. Heidelberg, Jeremiah Horrocks Institute, UClan, Preston, Lancashire, Uk, IAPS-INAF, Fosso del Cavaliere Roma, C. Astronomy, S. Science, Epping, Nrcc, U. Victoria, Canada, U. D. O. Physics, Astronomy, Cardiff, Departement of Physics, The Open University RALSpace, Chilton, Didcot, Oxfordshire +51 moresemanticscholar +1 more sourcePublic Administration of German Space Programs [PDF]
Advanced Space Law, 2019 The author of the article shows that the planning of administration of space programs in Germany is at a high level. However, the implementation of space programs requires improvement in order to attract investments from private businesses to this ...Iryna Orlovska, Kateryna Solodovadoaj +1 more sourcePredictions for ASKAP neutral hydrogen surveys [PDF]
, 2012 The Australian Square Kilometre Array Pathfinder (ASKAP) will revolutionize our knowledge of gas-rich galaxies in the Universe. Here we present predictions for two proposed extragalactic ASKAP neutral hydrogen (H I) emission-line surveys, based on semi ...A. Duffy, M. Meyer, L. Staveley-Smith, M. Bernyk, D. Croton, B. Koribalski, D. Gerstmann, Stefan Westerlund International Centre for Radio Astronom Research, The University of Western Australia, S. O. Physics, U. Melbourne, Centre for Gravitational Astrophysics, Supercomputing, S. U. O. Technology, C. Astronomy, S. Science, Australia Telescope National Facility +16 moresemanticscholar +1 more sourceFOSSIL EVIDENCE FOR THE TWO-PHASE FORMATION OF ELLIPTICAL GALAXIES [PDF]
Astrophysical Journal, 2013 Massive early-type galaxies (ETGs) have undergone dramatic structural evolution over the last 10 Gyr. A companion paper shows that nearby elliptical galaxies with M* ⩾ 1.3 × 1011M☉ generically contain three photometric subcomponents: a compact inner ...Song Huang, L. Ho, C. Peng, Zhao-Yu Li, A. C. F. I. O. Astronomy, S. Science, N. University, The Observatories of the Carnegie Institution for Science, Key Laboratory of Optical Astronomy, Astrophysics, Giant Magellan Telescope Organization, Key laboratory for Research in Galaxies, Cosmology, S. Observatory, D. Physics, Astronomy, U. California, Irvine +17 moresemanticscholar +1 more source
