INTEGRAL observations of the blazar Mrk 421 in outburst (Results of a multi-wavelength campaign)
| hal.structure.identifier | Max-Planck-Institut für Extraterrestrische Physik [MPE] | |
| dc.contributor.author | LICHTI, G. G. | |
| dc.contributor.author | BOTTACINI, E. | |
| dc.contributor.author | AJELLO, Marco | |
| hal.structure.identifier | Cytokines, hématopoïèse et réponse immune [CHRI] | |
| hal.structure.identifier | Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB] | |
| hal.structure.identifier | Observatoire aquitain des sciences de l'univers [OASU] | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| hal.structure.identifier | Groupement de Recherche en Économie Quantitative d'Aix-Marseille [GREQAM] | |
| dc.contributor.author | CHARLOT, P. | |
| dc.contributor.author | COLLMAR, W. | |
| dc.contributor.author | FALCONE, A. | |
| dc.contributor.author | HORAN, D. | |
| dc.contributor.author | HUBER, S. | |
| hal.structure.identifier | Max-Planck-Institut für Extraterrestrische Physik [MPE] | |
| dc.contributor.author | VON KIENLIN, A. | |
| dc.contributor.author | LÄHTEENMÄKI, A. | |
| dc.contributor.author | LINDFORS, E. | |
| hal.structure.identifier | Institut de RadioAstronomie Millimétrique [IRAM] | |
| dc.contributor.author | MORRIS, D. | |
| dc.contributor.author | NILSSON, K. | |
| dc.contributor.author | PETRY, D. | |
| dc.contributor.author | RÜGER, M. | |
| hal.structure.identifier | Department of Chemistry | |
| dc.contributor.author | SILLANPÄÄ, A. | |
| dc.contributor.author | SPANIER, F. | |
| dc.contributor.author | TORNIKOSKI, M. | |
| dc.date.created | 2008 | |
| dc.date.issued | 2008 | |
| dc.identifier.issn | 0004-6361 | |
| dc.description.abstractEn | We report the results of a multi-wavelength campaign on the blazar Mrk 421 during outburst. We observed four strong flares at X-ray energies that were not seen at other wavelengths (partially because of missing data). From the fastest rise in the X-rays, an upper limit could be derived on the extension of the emission region. A time lag between high-energy and low-energy X-rays was observed, which allowed an estimation of the magnetic-field strength. The spectral analysis of the X-rays revealed a slight spectral hardening of the low-energy (3 - 43 keV) spectral index. The hardness-ratio analysis of the Swift-XRT (0.2 - 10 keV) data indicated a small correlation with the intensity; i. e., a hard-to-soft evolution was observed. At the energies of IBIS/ISGRI (20 - 150 keV), such correlations are less obvious. A multiwavelength spectrum was composed and the X-ray and bolometric luminosities are calculated. | |
| dc.language.iso | en | |
| dc.publisher | EDP Sciences | |
| dc.title.en | INTEGRAL observations of the blazar Mrk 421 in outburst (Results of a multi-wavelength campaign) | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1051/0004-6361:20079199 | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph] | |
| dc.identifier.arxiv | 0805.2577 | |
| bordeaux.journal | Astronomy and Astrophysics - A&A | |
| bordeaux.page | 721-734 | |
| bordeaux.volume | 486 | |
| bordeaux.issue | 3 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00299832 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00299832v1 | |
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