Simultaneous x-ray and t[clc]e[/clc]v observations of a rapid flare from markarian 421
dc.contributor.author | Maraschi, L. | |
dc.contributor.author | Fossati, G. | |
dc.contributor.author | Tavecchio, F. | |
dc.contributor.author | Chiappetti, L. | |
dc.contributor.author | Celotti, A. | |
dc.contributor.author | Ghisellini, G. | |
dc.contributor.author | Grandi, P. | |
dc.contributor.author | Pian, E. | |
dc.contributor.author | Tagliaferri, G. | |
dc.contributor.author | Treves, A. | |
dc.contributor.author | Breslin, A. C. | |
dc.contributor.author | Buckley, J. H. | |
dc.contributor.author | Carter-Lewis, D. A. | |
dc.contributor.author | Catanese, M. | |
dc.contributor.author | Cawley, M. F. | |
dc.contributor.author | Fegan, D. J. | |
dc.contributor.author | Fegan, S. | |
dc.contributor.author | Finley, J. | |
dc.contributor.author | Gaidos, J. | |
dc.contributor.author | Hall, T. | |
dc.contributor.author | Hillas, A. M. | |
dc.contributor.author | Krennrich, F. | |
dc.contributor.author | Lessard, R. W. | |
dc.contributor.author | Masterson, C. | |
dc.contributor.author | Moriarty, P. | |
dc.contributor.author | Quinn, J. | |
dc.contributor.author | Rose, J. | |
dc.contributor.author | Samuelson, F. | |
dc.contributor.author | Weekes, T. C. | |
dc.contributor.author | Urry, C. M. | |
dc.contributor.author | Takahashi, T. | |
dc.date.accessioned | 2018-08-24T08:25:33Z | |
dc.date.available | 2018-08-24T08:25:33Z | |
dc.date.issued | 1999-12-01 | |
dc.identifier.citation | Maraschi, L. Fossati, G.; Tavecchio, F.; Chiappetti, L.; Celotti, A.; Ghisellini, G.; Grandi, P.; Pian, E.; Tagliaferri, G.; Treves, A.; Breslin, A. C.; Buckley, J. H.; Carter-Lewis, D. A.; Catanese, M.; Cawley, M. F.; Fegan, D. J.; Fegan, S.; Finley, J.; Gaidos, J.; Hall, T.; Hillas, A. M.; Krennrich, F.; Lessard, R. W.; Masterson, C.; Moriarty, P.; Quinn, J.; Rose, J.; Samuelson, F.; Weekes, T. C.; Urry, C. M.; Takahashi, T. (1999). Simultaneous x-ray and t[clc]e[/clc]v observations of a rapid flare from markarian 421. The Astrophysical Journal 526 (2), L81-L84 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.uri | http://hdl.handle.net/10379/9486 | |
dc.description.abstract | Mrk 421 was observed for about 2 days with BeppoSAX in 1998 April as part of a worldwide multiwavelength campaign. A large, well-defined flare was observed in X-rays. The same flare was observed simultaneously at TeV energies by the Whipple Observatory gamma-ray telescope. These data provide (1) the first evidence that the X-ray and TeV intensities are well correlated on timescales of hours and (2) the first exactly simultaneous X-ray and TeV spectra. The results imply that the X-ray and TeV photons derive from the same region and from the same population of relativistic electrons. 'The physical parameters deduced from a homogeneous synchrotron self-Compton model for the spectral energy distribution yield electron cooling times close to the observed variability timescales. | |
dc.publisher | IOP Publishing | |
dc.relation.ispartof | The Astrophysical Journal | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | bl lacertae objects : individual (markarian 421) | |
dc.subject | galaxies : active | |
dc.subject | galaxies : jets | |
dc.subject | gamma rays : observations | |
dc.subject | x-rays : galaxies | |
dc.subject | lacertae object markarian-421 | |
dc.subject | spectral energy-distributions | |
dc.subject | active galaxy markarian-421 | |
dc.subject | multiwavelength observations | |
dc.subject | blazars | |
dc.subject | variability | |
dc.subject | emission | |
dc.subject | photons | |
dc.subject | bursts | |
dc.subject | jets | |
dc.title | Simultaneous x-ray and t[clc]e[/clc]v observations of a rapid flare from markarian 421 | |
dc.type | Article | |
dc.identifier.doi | 10.1086/312370 | |
dc.local.publishedsource | http://iopscience.iop.org/article/10.1086/312370/pdf | |
nui.item.downloads | 0 |