dc.creator | Arlen, T. | |
dc.creator | Aune, T. | |
dc.creator | Beilicke, M. | |
dc.creator | Benbow, W. | |
dc.creator | Bouvier, A. | |
dc.creator | Buckley, J. H. | |
dc.creator | Bugaev, V. | |
dc.creator | Cesarini, A. | |
dc.creator | Ciupik, L. | |
dc.creator | Connolly, M. P. | |
dc.creator | Cui, W. | |
dc.creator | Dickherber, R. | |
dc.creator | Dumm, J. | |
dc.creator | Errando, M. | |
dc.creator | Falcone, A. | |
dc.creator | Federici, S. | |
dc.creator | Feng, Q. | |
dc.creator | Finley, J. P. | |
dc.creator | Finnegan, G. | |
dc.creator | Fortson, L. | |
dc.creator | Furniss, A. | |
dc.creator | Galante, N. | |
dc.creator | Gall, D. | |
dc.creator | Griffin, S. | |
dc.creator | Grube, J. | |
dc.creator | Gyuk, G. | |
dc.creator | Hanna, D. | |
dc.creator | Holder, J. | |
dc.creator | Humensky, T. B. | |
dc.creator | Pichel, Ana Carolina | |
dc.creator | The VERITAS Collaboration | |
dc.date.accessioned | 2017-06-02T16:10:41Z | |
dc.date.accessioned | 2018-11-06T13:18:15Z | |
dc.date.available | 2017-06-02T16:10:41Z | |
dc.date.available | 2018-11-06T13:18:15Z | |
dc.date.created | 2017-06-02T16:10:41Z | |
dc.date.issued | 2013-01-10 | |
dc.identifier | Arlen, T.; Aune, T.; Beilicke, M.; Benbow, W.; Bouvier, A.; et al.; Rapid TeV Gamma-Ray Flaring of BL Lacertae; Iop Publishing; Astrophysical Journal; 762; 10-1-2013; 92, 1-13 | |
dc.identifier | 0004-637X | |
dc.identifier | http://hdl.handle.net/11336/17369 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1874085 | |
dc.description.abstract | We report on the detection of a very rapid TeV gamma-ray flare from BL Lacertae on 2011 June 28 with the Very Energetic Radiation Imaging Telescope Array System (VERITAS). The flaring activity was observed during a 34.6 minute exposure, when the integral flux above 200 GeV reached (3.4 ± 0.6) × 10^-6 photons m^-2 s^-1, roughly 125% of the Crab Nebula flux measured by VERITAS. The light curve indicates that the observations missed the rising phase of the flare but covered a significant portion of the decaying phase. The exponential decay time was determined to be 13 ± 4 minutes, making it one of the most rapid gamma-ray flares seen from a TeV blazar. The gamma-ray spectrum of BL Lacertae during the flare was soft, with a photon index of 3.6 ± 0.4, which is in agreement with the measurement made previously by MAGIC in a lower flaring state. Contemporaneous radio observations of the source with the Very Long Baseline Array revealed the emergence of a new, superluminal component from the core around the time of the TeV gamma-ray flare, accompanied by changes in the optical polarization angle. Changes in flux also appear to have occurred at optical, UV, and GeV gamma-ray wavelengths at the time of the flare, although they are difficult to quantify precisely due to sparse coverage. A strong flare was seen at radio wavelengths roughly four months later, which might be related to the gamma-ray flaring activities. We discuss the implications of these multiwavelength results. | |
dc.language | eng | |
dc.publisher | Iop Publishing | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/0004-637X/762/2/92 | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/762/2/92/meta | |
dc.relation | info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/1211.3073 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.subject | galaxies: active | |
dc.subject | galaxies: individual (BL Lacertae, VER J2202+422) | |
dc.subject | gamma rays: galaxies | |
dc.title | Rapid TeV Gamma-Ray Flaring of BL Lacertae | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |