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Aliu, E.; Archambault, S.; Arlen, T.; Aune, T.; Beilicke, M.; Benbow, W.; Bird, R.; Böttcher, M.; Bouvier, A.; Bugaev, V.; Byrum, K.; Cesarini, A.; Ciupik, L.; Collins-Hughes, E.; Connolly, M.P.; Cui, W.; Dickherber, R.; Duke, C. (...) Zitzer, B. "Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state" (2013) Astrophysical Journal. 775(1)
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Abstract:

We report on the VERITAS observations of the high-frequency peaked BL Lac object 1ES 1959+650 in the period 2007-2011. This source is detected at TeV energies by VERITAS at 16.4 standard deviation (σ) significance in 7.6 hr of observation in a low flux state. A multiwavelength spectral energy distribution (SED) is constructed from contemporaneous data from VERITAS, Fermi-LAT, RXTE PCA, and Swift UVOT. Swift XRT data is not included in the SED due to a lack of simultaneous observations with VERITAS. In contrast to the orphan γ-ray flare exhibited by this source in 2002, the X-ray flux of the source is found to vary by an order of magnitude, while other energy regimes exhibit less variable emission. A quasi-equilibrium synchrotron self-Compton model with an additional external radiation field is used to describe three SEDs corresponding to the lowest, highest, and average X-ray states. The variation in the X-ray spectrum is modeled by changing the electron injection spectral index, with minor adjustments of the kinetic luminosity in electrons. This scenario produces small-scale flux variability of the order of ≲ 2 in the high energy (E > 1 MeV) and very high energy (E > 100 GeV) γ-ray regimes, which is corroborated by the Fermi-LAT, VERITAS, and Whipple 10 m telescope light curves. © 2013. The American Astronomical Society. All rights reserved..

Registro:

Documento: Artículo
Título:Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state
Autor:Aliu, E.; Archambault, S.; Arlen, T.; Aune, T.; Beilicke, M.; Benbow, W.; Bird, R.; Böttcher, M.; Bouvier, A.; Bugaev, V.; Byrum, K.; Cesarini, A.; Ciupik, L.; Collins-Hughes, E.; Connolly, M.P.; Cui, W.; Dickherber, R.; Duke, C.; Dumm, J.; Errando, M.; Falcone, A.; Federici, S.; Feng, Q.; Finley, J.P.; Finnegan, G.; Fortson, L.; Furniss, A.; Galante, N.; Gall, D.; Gillanders, G.H.; Griffin, S.; Grube, J.; Gyuk, G.; Hanna, D.; Holder, J.; Hughes, G.; Humensky, T.B.; Kaaret, P.; Kertzman, M.; Khassen, Y.; Kieda, D.; Krawczynski, H.; Krennrich, F.; Lang, M.J.; Madhavan, A.S.; Maier, G.; Majumdar, P.; McArthur, S.; McCann, A.; Moriarty, P.; Mukherjee, R.; Nelson, T.; O'Faoláin De Bhróithe, A.; Ong, R.A.; Orr, M.; Otte, A.N.; Park, N.; Perkins, J.S.; Pichel, A.; Pohl, M.; Popkow, A.; Prokoph, H.; Quinn, J.; Ragan, K.; Reyes, L.C.; Reynolds, P.T.; Roache, E.; Saxon, D.B.; Schroedter, M.; Sembroski, G.H.; Skole, C.; Smith, A.W.; Staszak, D.; Telezhinsky, I.; Theiling, M.; Tyler, J.; Varlotta, A.; Vassiliev, V.V.; Wakely, S.P.; Weekes, T.C.; Weinstein, A.; Welsing, R.; Williams, D.A.; Zitzer, B.
Filiación:Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, United States
Physics Department, McGill University, Montreal, QC H3A 2T8, Canada
Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, United States
Department of Physics, Washington University, St. Louis, MO 63130, United States
Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, United States
School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
Astrophysical Institute, Department of Physics and Astronomy, Ohio University, Athens, OH 45701, United States
Centre for Space Research, North-West University, Potchefstroom Campus, Potchefstroom 2531, South Africa
Santa Cruz Institute for Particle Physics, Department of Physics, University of California, Santa Cruz, CA 95064, United States
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, United States
School of Physics, National University of Ireland Galway, University Road, Galway, Ireland
Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, United States
Department of Physics, Purdue University, West Lafayette, IN 47907, United States
Department of Physics, Grinnell College, Grinnell, IA 50112-1690, United States
School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, United States
Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, United States
DESY, Platanenallee 6, D-15738 Zeuthen, Germany
Institute of Physics and Astronomy, University of Potsdam, D-14476 Potsdam-Golm, Germany
Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, United States
Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, United States
Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716, United States
Physics Department, Columbia University, New York, NY 10027, United States
Department of Physics and Astronomy, DePauw University, Greencastle, IN 46135-0037, United States
Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States
Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata-700064, India
Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, United States
Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, United States
Department of Life and Physical Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
School of Physics, Center for Relativistic Astrophysics, Georgia Institute of Technology, 837 State Street NW, Atlanta, GA 30332-0430, United States
CRESST, Astroparticle Physics Laboratory NASA/GSFC, Greenbelt, MD 20771, United States
University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, United States
Instituto de Astronomia y Fisica del Espacio, Casilla de Correo 67-Sucursal 28, C1428ZAA Ciudad Autnoma de Buenos Aires, Argentina
Physics Department, California Polytechnic State University, San Luis Obispo, CA 94307, United States
Department of Applied Physics and Instrumentation, Cork Institute of Technology, Bishopstown, Cork, Ireland
Palabras clave:BL Lacertae objects: general; galaxies: active; gamma rays: galaxies
Año:2013
Volumen:775
Número:1
DOI: http://dx.doi.org/10.1088/0004-637X/775/1/3
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v775_n1_p_Aliu

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Citas:

---------- APA ----------
Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bird, R.,..., Zitzer, B. (2013) . Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state. Astrophysical Journal, 775(1).
http://dx.doi.org/10.1088/0004-637X/775/1/3
---------- CHICAGO ----------
Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., et al. "Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state" . Astrophysical Journal 775, no. 1 (2013).
http://dx.doi.org/10.1088/0004-637X/775/1/3
---------- MLA ----------
Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., et al. "Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state" . Astrophysical Journal, vol. 775, no. 1, 2013.
http://dx.doi.org/10.1088/0004-637X/775/1/3
---------- VANCOUVER ----------
Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., et al. Multiwavelength observations and modeling of 1ES 1959+650 in a low flux state. Astrophys. J. 2013;775(1).
http://dx.doi.org/10.1088/0004-637X/775/1/3