Multiwavelength observations of mrk 501 in 2008

D. Kranich, D. Paneque, A. Cesarini, Abraham David Falcone, M. Giroletti, E. Hoversten, T. Hovatta, Y. Y. Kovalev, A. Lähteenmäki, E. Nieppola, C. Pagani, A. Pichel, K. Satalecka, J. Scargle, D. Steele, F. Tavecchio, D. Tescaro, M. Tornikoski, M. Villata

Research output: Contribution to conferencePaper

Abstract

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.

Original languageEnglish (US)
StatePublished - Jan 1 2009
Event31st International Cosmic Ray Conference, ICRC 2009 - Lodz, Poland
Duration: Jul 7 2009Jul 15 2009

Other

Other31st International Cosmic Ray Conference, ICRC 2009
CountryPoland
CityLodz
Period7/7/097/15/09

Fingerprint

rays
Crab nebula
spectral energy distribution
parameterization
high energy electrons
synchrotrons
x rays
gamma rays
broadband
trends
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Kranich, D., Paneque, D., Cesarini, A., Falcone, A. D., Giroletti, M., Hoversten, E., ... Villata, M. (2009). Multiwavelength observations of mrk 501 in 2008. Paper presented at 31st International Cosmic Ray Conference, ICRC 2009, Lodz, Poland.
Kranich, D. ; Paneque, D. ; Cesarini, A. ; Falcone, Abraham David ; 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. / Multiwavelength observations of mrk 501 in 2008. Paper presented at 31st International Cosmic Ray Conference, ICRC 2009, Lodz, Poland.
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title = "Multiwavelength observations of mrk 501 in 2008",
abstract = "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.",
author = "D. Kranich and D. Paneque and A. Cesarini and Falcone, {Abraham David} and M. Giroletti and E. Hoversten and T. Hovatta and Kovalev, {Y. Y.} and A. L{\"a}hteenm{\"a}ki and E. Nieppola and C. Pagani and A. Pichel and K. Satalecka and J. Scargle and D. Steele and F. Tavecchio and D. Tescaro and M. Tornikoski and M. Villata",
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language = "English (US)",
note = "31st International Cosmic Ray Conference, ICRC 2009 ; Conference date: 07-07-2009 Through 15-07-2009",

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Kranich, D, Paneque, D, Cesarini, A, Falcone, AD, Giroletti, M, Hoversten, E, Hovatta, T, Kovalev, YY, Lähteenmäki, A, Nieppola, E, Pagani, C, Pichel, A, Satalecka, K, Scargle, J, Steele, D, Tavecchio, F, Tescaro, D, Tornikoski, M & Villata, M 2009, 'Multiwavelength observations of mrk 501 in 2008', Paper presented at 31st International Cosmic Ray Conference, ICRC 2009, Lodz, Poland, 7/7/09 - 7/15/09.

Multiwavelength observations of mrk 501 in 2008. / Kranich, D.; Paneque, D.; Cesarini, A.; Falcone, Abraham David; 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.

2009. Paper presented at 31st International Cosmic Ray Conference, ICRC 2009, Lodz, Poland.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Multiwavelength observations of mrk 501 in 2008

AU - Kranich, D.

AU - Paneque, D.

AU - Cesarini, A.

AU - Falcone, Abraham David

AU - Giroletti, M.

AU - Hoversten, E.

AU - Hovatta, T.

AU - Kovalev, Y. Y.

AU - Lähteenmäki, A.

AU - Nieppola, E.

AU - Pagani, C.

AU - Pichel, A.

AU - Satalecka, K.

AU - Scargle, J.

AU - Steele, D.

AU - Tavecchio, F.

AU - Tescaro, D.

AU - Tornikoski, M.

AU - Villata, M.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - 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.

AB - 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.

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M3 - Paper

AN - SCOPUS:84899072249

ER -

Kranich D, Paneque D, Cesarini A, Falcone AD, Giroletti M, Hoversten E et al. Multiwavelength observations of mrk 501 in 2008. 2009. Paper presented at 31st International Cosmic Ray Conference, ICRC 2009, Lodz, Poland.