The kpc-scale radio source population |
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| Authors: | P Augusto J I Gonzalez-Serrano A C Edge N A B Gizani P N Wilkinson I Perez-Fournon |
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| Institution: | 1. Universidade da Madeira, Centro de Ciências Matemáticas, Caminho da Penteada, 9000 Funchal, Portugal;2. Instituto de Fı́sica de Cantabria (CSIC-Universidad de Cantabria), Facultad de Ciencias, 39005 Santander, Spain;3. University of Durham, Department of Physics, South Road, Durham DH1 3CE, UK;4. University of Ioannina, Section of Astro-Geophysics, Department of Physics, 45110 Ioannina, Greece;5. University of Manchester, Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL, UK;6. Instituto de Astrofı́sica de Canarias, c/ Via Láctea s/n, 38200 La Laguna, Tenerife, Spain;1. Hitotsubashi University, 2-1 Naka, Kunitachi 186-8601, Japan;2. Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan;3. National Astronomical Observatory of Japan, 2-21-1, Mitaka 181-8588, Japan;1. Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, Ciudad Universitaria, Ciudad de México 04510, Mexico;2. Universidad Autónoma de Chiapas, Carretera Emiliano Zapata Km. 8, Rancho San Francisco, Tuxtla Gutiérrez 29050, Mexico;3. Universidad Michoacana de San Nicolás de Hidalgo, Edifico C-3, Ciudad Universitaria, Morelia 58040, Mexico;4. Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, Mexico;5. Department of Physics, Pennsylvania State University, 104 Davey Lab, University Park, PA 16802, USA;6. Department of Physics, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931-1295, USA;7. Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, Mexico;8. Instituto Nacional de Astrofísica, Óptica y Electrónica, Luis Enrique Erro # 1, San Andres Cholula 72840, Mexico;9. Institute of Nuclear Physics Polish Academy of Sciences, ul. Radzikowskiego 152, Krakow PL-31342, Poland;10. Centro de Investigación en Computación, Instituto Politécnico Nacional, Av. Juan de Dios Bátiz s/n esq. Miguel Othon de Mendizabal, Ciudad de México 07738, Mexico;11. Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Ciudad Universitaria, Puebla 72570, Mexico;12. Departamento de Física, Centro Universitario de Ciencias Exactas e Ingenierias, Universidad de Guadalajara, Blvd. Marcelino García Barragán No. 1451, Guadalajara 44430, Mexico;13. Department of Physics, University of Wisconsin-Madison, 222 West Washington Ave., Suite 500, Madison, WI 53707, USA;14. Department of Physics, University of Maryland, College Park, MD 20742-4111, USA;15. Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. 64849, Mexico;p. Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erwin-Rommel-Str. 1, Erlangen, BY 91058, Germany;q. Universidad Politecnica de Pachuca, Ex-Hacienda Sta. Barbara, carretera Pachuca-Cd. Sahagun Km. 20, Pachuca, Hgo 42083, Mexico;r. Department of Physics and Astronomy, Michigan State University, 567 Wilson Road, East Lansing, MI 48824, USA;s. Physics Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;t. Dept of Physics and Astronomy, University of New Mexico, 1 University of New Mexico, Albuquerque, NM 87131-0001, USA;u. Universidad Autónoma del Estado de Hidalgo, Ciudad Universitaria Carr. Pachuca-Tulancingo, km. 4.5, Pachuca, Hgo 42184, Mexico;v. Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de Mexico, Circuito Exterior S/N, Mexico City 04510, Mexico;w. Department of Physics, Stanford University, Hansen Experimental Physics Lab, Stanford, CA 94305, USA;x. University of Seoul, 163 Seoulsiripdae-ro, Jeonnong-dong, Dongdaemun-gu, Seoul 02504, Republic of Korea;y. Max-Planck Institute for Nuclear Physics, Saupfercheckweg 1, Heidelberg, BW69117, Germany;z. Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Rd, Shanghai, SH 200240, China;11. Deparment of Physics and Astronomy, University of Utah, 115 S 1400 E, Salt Lake City, UT 84112, USA;12. Space Science and Applications Group, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;13. School of Environmental Studies, Cochin University of Science and Technology, Kochi, Kerala 682022, India;14. Department of Physics, Sungkyunkwan University, Suwon 16419, South Korea |
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| Abstract: | We are conducting a multi-wavelength (radio, optical, and X-ray) observational campaign to classify, morphologically and physically, a sample of 55 flat-spectrum radio sources dominated by structure on kpc-scales. This sample contains 22 compact-/medium-sized symmetric object candidates, a class of objects thought to be in the early stages of the evolution of radio galaxies. The vast majority of the remaining objects have core-plus-one-sided-jet structures, half of which show sharply bent jets, probably due to strong interactions with the interstellar medium of the host galaxies. Once the observational campaign is completed, we will constrain evolutionary theories of radio galaxies at their intermediate stages and possibly understand the physics of the hypothesised narrow-line region in active galactic nuclei, given our advantageous statistical position. |
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| Keywords: | Radio continuum: general Galaxies: active Galaxies: evolution Galaxies: ISM Galaxies: jets Quasars: general |
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