Abstract:
We present observations of the gamma-ray blazar Markarian 501 between April 17 and May 5, 2009, with the Whipple 10-m telescope, VERITAS, the Fermi Large Area Telescope (LAT), Swift and RXTE as part of a 4.5-month multi-wavelength campaign. The presentation will focus on the strong very high energy (VHE) gamma-ray activity detected on May 1st with Whipple and VERITAS, when the measured flux (E > 400 GeV) reached five times the flux of the Crab Nebula, coincident with an increase in the optical polarization by a factor of 5, and a rotation of the polarization angle by 15 degrees. We also show that, during this 3-week period, the largest flux and spectral variability is seen at the highest energies of the broadband spectral energy distribution.
Registro:
| Documento: |
Conferencia
|
| Título: | Detailed multifrequency study of a rapid VHE flare of mrk501 in May 2009 |
| Autor: | Pichel, A.; Paneque, D. |
| Ciudad: | Beijing |
| Filiación: | Instituto de Astronomía y Física Del Espacio, Argentina
Max Planck Institute for Physics, Germany
|
| Palabras clave: | Blazars; Gamma rays; Whipple telescope; Cosmic rays; Gamma rays; Blazars; Large area telescopes; Multi frequency; Multi-wavelength campaigns; Polarization angle; Spectral energy distribution; Spectral variability; Very high energies; Telescopes |
| Año: | 2011
|
| Volumen: | 8
|
| Página de inicio: | 173
|
| Página de fin: | 176
|
| DOI: |
http://dx.doi.org/10.7529/ICRC2011/V08/1181 |
| Título revista: | 32nd International Cosmic Ray Conference, ICRC 2011
|
| Título revista abreviado: | Proc. Int. Cosm. Ray Conf., ICRC
|
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS23770_v8_n_p173_Pichel |
Referencias:
- Böttcher, M., (2007) Ap&SS, 309, p. 95
- Quinn, J., (1996) ApJ, 456, pp. L83
- Albert, J., (2007) ApJ, 669, p. 862
- Xue, Y., Cui, W., (2005) ApJ, 662, p. 160
- Catanese, M., (1997) ApJ, 487, pp. L143
- Pian, E., (1998) ApJ, 492, pp. L17
- Abdo, A.A., (2011) ApJ, 727, p. 129
- Kildea, J., (2007) Astroparticle Phys, 28, p. 182
- Weekes, T.C., (2002) Astroparticle Phys, 17, p. 221
- Holder, J., (2006) Astroparticle Phys, 25, p. 391
- Huang, D., (2009) Proc. of the Fermi Symp.
- Atwood, W.B., (2009) ApJ, 697, p. 1071
- Marscher, A.P., (2010) ApJ, 710, pp. L126
- Abdo, (2010) Nature, 463, p. 919
- Jorstad, (2010) ApJ, 715, p. 362
- Vaughan, S., (2003) MNRAS, 345, p. 1271
- Edelson, R., Krolik, J., (1988) ApJ, 333, p. 646
- Krawczynski, H., (2002) ApJ, 601, p. 151
- Aharonian, F., (2009) A&A, 502, p. 749A4 - China Center of Advanced Science and Technology (CCAST); Chinese Academy of Sciences (CAS); Institute of High Energy Physics (IHEP); National Natural Science Foundation of China (NSFC)
Citas:
---------- APA ----------
Pichel, A. & Paneque, D.
(2011)
. Detailed multifrequency study of a rapid VHE flare of mrk501 in May 2009. 32nd International Cosmic Ray Conference, ICRC 2011, 8, 173-176.
http://dx.doi.org/10.7529/ICRC2011/V08/1181---------- CHICAGO ----------
Pichel, A., Paneque, D.
"Detailed multifrequency study of a rapid VHE flare of mrk501 in May 2009"
. 32nd International Cosmic Ray Conference, ICRC 2011 8
(2011) : 173-176.
http://dx.doi.org/10.7529/ICRC2011/V08/1181---------- MLA ----------
Pichel, A., Paneque, D.
"Detailed multifrequency study of a rapid VHE flare of mrk501 in May 2009"
. 32nd International Cosmic Ray Conference, ICRC 2011, vol. 8, 2011, pp. 173-176.
http://dx.doi.org/10.7529/ICRC2011/V08/1181---------- VANCOUVER ----------
Pichel, A., Paneque, D. Detailed multifrequency study of a rapid VHE flare of mrk501 in May 2009. Proc. Int. Cosm. Ray Conf., ICRC. 2011;8:173-176.
http://dx.doi.org/10.7529/ICRC2011/V08/1181