The well-studied VHE (E > 100 GeV) blazar Mrk 501 was observed between March and May 2008 as part of an extensive multiwavelength observation campaign including radio, optical, X-ray and VHE gamma-ray instruments. Mrk 501 was in a low state of activity during the campaign, with a low VHE flux of about 20% the Crab Nebula flux. Nevertheless, significant flux variations could be observed in X-rays as well as -rays. Overall Mrk 501 showed increased variability when going from radio to -ray energies. The broadband spectral energy distribution during the two different emission states of the campaign was well described by a homogeneous one-zone synchrotron self-Compton model. The high emission state was satisfactorily modeled by increasing the amount of high energy electrons with respect to the low emission state. This parameterization is consistent with the energy-dependent variability trend observed during the campaign.
| Documento: | Conferencia |
| Título: | Multiwavelength observations of mrk 501 in 2008 |
| Autor: | Kranich, D.; Paneque, D.; Cesarini, A.; Falcone, A.; Giroletti, M.; Hoversten, E.; Hovatta, T.; Kovalev, Y.Y.; Lähteenmäki, A.; Nieppola, E.; Pagani, C.; Pichel, A.; Satalecka, K.; Scargle, J.; Steele, D.; Tavecchio, F.; Tescaro, D.; Tornikoski, M.; Villata, M. |
| Ciudad: | Lodz |
| Filiación: | ETH Zurich, CH-8093, Switzerland SLAC National Accelerator Laboratory and KIPAC, CA 94025, United States Astronomy and Astrophysics Dept., Penn State University, PA 16802, United States INAF Istituto di Radioastronomia, Bologna, Italy Metsähovi Radio Observatory, Helsinki University of Technology TKK, Finland MPIfR, 53121 Bonn, Germany and ASC Lebedev, 117997 Moscow, Russian Federation Instituto de Astronomia Y Fisica, Espacio Ciudad Universitaria, Buenos Aires, Argentina DESY Deutsches Elektronen-Synchrotron, D-15738 Zeuthen, Germany NASA Ames Research Center, Moffett Field, CA 94035, United States Adler Planetarium and Astronomy Museum, Chicago, IL 60605, United States INAF National Institute for Astrophysics, I-00136 Rome, Italy IFAE, Campus UAB, E-08193 Bellaterra, Spain INAF Osservatorio Astronomico, Torino, Italy Physics Department, Centre for Astronomy, National University of Ireland, Galway, Ireland., Ireland |
| Palabras clave: | Blazar; Mrk 501; SSC model; Gamma rays; Blazar; Crab Nebula flux; Energy dependent; High-energy electron; Mrk 501; Multiwavelength observations; Spectral energy distribution; SSC models; Cosmic rays |
| Año: | 2009 |
| Título revista: | 31st International Cosmic Ray Conference, ICRC 2009 |
| Título revista abreviado: | Int. Cosm. Ray Conf., ICRC |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS23286_v_n_p_Kranich |
